DAS 1 : Réseaux électriques intelligents
Microgrid Design & Cost Options
Microgrids are amazing. On a
microscale (my house, for instance), a microgrid is simple — solar
feeds a battery which powers my house when there's no sun. It would
get challenged to do more than that. But "more than that" is what
larger scale microgrids need. Control systems, multiple energy
inputs, storage, distribution, control […]
|
Cette éolienne silencieuse produit 50%
d'énergie en plus que le photovoltaïque
L'innovation en matière d'énergie renouvelable ne se limite pas
aux panneaux solaires. Du côté des éoliennes aussi, les
entreprises se creusent la tête pour mettre au point des
technologies plus efficaces et moins bruyantes.
Cette éolienne silencieuse produit 50% d'énergie en plus que le
photovoltaïque
|
Photovoltaic System Failure and
Alerting
A fault identification may be triggered
by a component of a power generation system (PGS), such as a hardware
component, a controller of a hardware component, a device of the PGS,
a computer connected to the PGS, a computer configured to monitor the
PGS, and/or the like. The fault identification may be the result of a
failure of a component of the PGS, a future failure of a component of
the PGS, a routine maintenance of the PGS, and/or the like. The fault
is converted to a notification on a user interface using a mapping of
faults, root-causes, notification rules, and/or the like. The
conversion may use one or more lookup tables and/or formulas for
determining the impact of the fault on the PGS, and/or the
like.
|
MICROGRID POWER SYSTEM
Embodiments are directed to a microgrid
power system, and applications thereof. In an embodiment, the
microgrid power system comprises a power station including an AC
power source and a stabilizing battery system. The power station may
be configured to generate an AC power and to provide the first AC
power to a power distribution network. A plurality of load centers
may be connected to the power distribution system. Each load center
may include a local battery and a switch connecting the power station
to a local load. A system controller may open the switch to provide
power from the local battery to the local load, and close the switch
to provide power from the power station to the local load. In an
embodiment, a microgrid controller may determine an amount of AC
power generated by the power station that may be consumed by each
load center.
|
Design of Efficient Energy Management
Solution for the Internet of Things-Based Smart Microgrid
Energy Management Solution (EMS) sounds
familiar in recent days for its advantages and solution to monitor
and analyse energy consumption. EMS plays a vital role in the energy
sector and in the field with bottom-line business priority. This
paper proposes an EMS solution to the smart microgrid through an
Internet of Things (IoT)-based unified framework. The IoT-based
unified framework provides energy efficient optimization and
scheduling to the smart microgrid. This work also discusses the
energy harvest and energy trading in the rural area where the smart
microgrid has been installed. The advantages of the proposed IoT
framework are it provides adequate control on the renewable energy
resources and optimize the load scheduling based on the energy
harvest. To prove the EMS using the developed framework, a simulation
analysis has been carried out. The obtained simulation results show
the essential requirement of energy management solutions and the
optimal performance of the proposed IoT framework.
|
Improvements in methods for analysis of
partially shaded PV modules
Several methods for analyzing
photovoltaic (PV) systems under partial shading conditions (PSC) can
be found in the literature. However, the simplest methods are not
very accurate. This article presents (1) a simple and accurate method
to model I–V curves for PSC and (2) an improvement of a simplified
method, without calculating the I–V curves, to accurately estimate
the energy generated by PV systems under PSC. The I–V curves of two
PV modules under PSC were measured. The measured curves were compared
with modeled curves using two methods from the literature and a new
proposed method. Four simplified methods from the literature for
estimating the energy generated by PV systems were analyzed. The
accuracy of these methods was investigated by comparing the
calculated values with measured data from a PV system. For modeling
the I–V curves, the new method showed a mean absolute percentage
error of 1.5% and proved to be accurate. For the evaluated PV system,
using a monthly database and the proposed diffuse shading factor
resulted in differences between the measured and modeled results of
up to 10% per month and 5% for the entire measurement period. The two
proposed methods are simple and accurate. © 2022 Elsevier Ltd
PublicationName: Renewable EnergyAffiliations: Universidade Federal
do Rio Grande do Sul / Brazil
doi: 10.1016/j.renene.2022.10.035
eIssn: 18790682
Volume: 200
IssueIdentifier:
|
A High Voltage Gain ZVT Quasi-Z-Source
Converter With Reduced Voltage Stress
In this article, a new high voltage gain
quasi-Z-source (QZS) dc-dc converter suitable for renewable energy
applications is presented. The proposed converter utilizes a zero
voltage transition auxiliary circuit with coupled inductors to
provide soft-switching conditions for all switches for a wide range
of output power. In addition, a switched capacitor circuit is
employed to obtain a higher voltage gain and lower voltage stress.
The main advantages of the proposed converter include high voltage
gain, high efficiency, reduced switch and diode voltage stress,
continuous input current, and common ground between the output and
input, which are important features for photovoltaic applications. In
this circuit, the reverse recovery problem of diodes is alleviated.
Operating principles and design considerations of the proposed
converter are analyzed. Moreover, to prove the validity of the
theoretical analysis, a 200-W prototype of the proposed converter is
implemented and the experimental results are shown. © 1986-2012
IEEE.
PublicationName: IEEE Transactions on Power ElectronicsAffiliations:
University of Alberta / Canada
doi: 10.1109/TPEL.2022.3178140
eIssn: 19410107
Volume: 37
IssueIdentifier: 11
|
Le photovoltaïque : l'énergie du siècle ?
- Informateur Judiciaire
L'autre atout incontestable du solaire
réside dans la facilité et la massivité de son déploiement. Les
équipements s'installent partout : chez le particulier,
|
A WAVE POWER SYSTEM
Herein is disclosed a wave power system
for extracting energy from water waves. The wave power system
includes a basic structure, at least one effector movably engaged
with the basic structure and adapted for being moved relative to the
basic structure by water waves, and an energy harvesting arrangement
arranged for harvesting energy from the relative movements between
the energy collector and the basic structure The basic structure i a
plurality of duct sections releasable connected to each other.
Conveniently, the wave power system includes several
effectors.
|
Une centrale photovoltaïque flottante sur
la retenue collinaire de piton Marcellin - Clicanoo
LE TAMPON. La mission régionale de
l'Autorité environnementale a émis un avis sur le projet de
centra...
|
Eco Wave Power's net income grows amid
currency fluctuations
Swedish-Israeli wave energy company Eco
Wave Power has released financial results for the first half of 2022,
marking a significant rise in net financial income due to foreign
exchange differences. The post Eco Wave Power's net income grows
amid currency fluctuations appeared first on Offshore Energy .
|
Systèmes de génération d'énergie
éolienne - Partie 12 : mesurages de performance de puissance des
éoliennes de production d'électricité - Vue d'ensemble
Installations électriques à basse tension
- Partie 5-57: Choix et mise en oeuvre des matériels électriques -
Mise en oeuvre des batteries d'accumulateurs stationnaires IEC
Renewable energy off-grid systems - Part
100: Overview of the IEC 62257 series
Wave energy conversion system
Disclosed is a WEC module for connection
to a WEC system having a power take-off (PTO) configured to generate
electricity in response to fluid flow in a fluid flow path of the
system. The module comprises a mounting portion for releasably
mounting the module to the system, a deformable sealing member
configured to provide a sealed fluid connection between the module
and the fluid flow path, and a working surface configured to
exchange, in response to wave motion, a working fluid with the fluid
flow path via the sealed fluid connection. Also disclosed is a WEC
system and a method of deploying the WEC module. Also disclosed is an
installation device for a working surface and a method of installing
a working surface.
|
Une hydrolienne verticale montée sur un
ponton va éclairer une partie de la Tamise
Une équipe de l'Université de
Kingston vient de procéder au test d'une nouvelle conception de
turbine hydroélectrique. Elle serait capable de produire
suffisamment d'énergie pour éclairer une partie de la Tamise, en
Angleterre.
L'article Une hydrolienne verticale montée sur un ponton va
éclairer une partie de la Tamise est apparu en premier sur NeozOne
.
|
Microgrid Design & Cost Options
Microgrids are amazing. On a
microscale (my house, for instance), a microgrid is simple — solar
feeds a battery which powers my house when there's no sun. It would
get challenged to do more than that. But "more than that" is what
larger scale microgrids need. Control systems, multiple energy
inputs, storage, distribution, control […]
|
Cette éolienne silencieuse produit 50%
d'énergie en plus que le photovoltaïque
L'innovation en matière d'énergie renouvelable ne se limite pas
aux panneaux solaires. Du côté des éoliennes aussi, les
entreprises se creusent la tête pour mettre au point des
technologies plus efficaces et moins bruyantes.
Cette éolienne silencieuse produit 50% d'énergie en plus que le
photovoltaïque
|
Le photovoltaïque : l'énergie du siècle ?
- Informateur Judiciaire
L'autre atout incontestable du solaire
réside dans la facilité et la massivité de son déploiement. Les
équipements s'installent partout : chez le particulier,
|
Une centrale photovoltaïque flottante sur
la retenue collinaire de piton Marcellin - Clicanoo
LE TAMPON. La mission régionale de
l'Autorité environnementale a émis un avis sur le projet de
centra...
|
Eco Wave Power's net income grows amid
currency fluctuations
Swedish-Israeli wave energy company Eco
Wave Power has released financial results for the first half of 2022,
marking a significant rise in net financial income due to foreign
exchange differences. The post Eco Wave Power's net income grows
amid currency fluctuations appeared first on Offshore Energy .
|
Une hydrolienne verticale montée sur un
ponton va éclairer une partie de la Tamise
Une équipe de l'Université de
Kingston vient de procéder au test d'une nouvelle conception de
turbine hydroélectrique. Elle serait capable de produire
suffisamment d'énergie pour éclairer une partie de la Tamise, en
Angleterre.
L'article Une hydrolienne verticale montée sur un ponton va
éclairer une partie de la Tamise est apparu en premier sur NeozOne
.
|
Norme - NF : France ; EN : Europe ; ISO :
Internationale et PR : projet de norme
Systèmes de génération d'énergie
éolienne - Partie 12 : mesurages de performance de puissance des
éoliennes de production d'électricité - Vue d'ensemble
Installations électriques à basse tension
- Partie 5-57: Choix et mise en oeuvre des matériels électriques -
Mise en oeuvre des batteries d'accumulateurs stationnaires IEC
Renewable energy off-grid systems - Part
100: Overview of the IEC 62257 series
Design of Efficient Energy Management
Solution for the Internet of Things-Based Smart Microgrid
Energy Management Solution (EMS) sounds
familiar in recent days for its advantages and solution to monitor
and analyse energy consumption. EMS plays a vital role in the energy
sector and in the field with bottom-line business priority. This
paper proposes an EMS solution to the smart microgrid through an
Internet of Things (IoT)-based unified framework. The IoT-based
unified framework provides energy efficient optimization and
scheduling to the smart microgrid. This work also discusses the
energy harvest and energy trading in the rural area where the smart
microgrid has been installed. The advantages of the proposed IoT
framework are it provides adequate control on the renewable energy
resources and optimize the load scheduling based on the energy
harvest. To prove the EMS using the developed framework, a simulation
analysis has been carried out. The obtained simulation results show
the essential requirement of energy management solutions and the
optimal performance of the proposed IoT framework.
|
Improvements in methods for analysis of
partially shaded PV modules
Several methods for analyzing
photovoltaic (PV) systems under partial shading conditions (PSC) can
be found in the literature. However, the simplest methods are not
very accurate. This article presents (1) a simple and accurate method
to model I–V curves for PSC and (2) an improvement of a simplified
method, without calculating the I–V curves, to accurately estimate
the energy generated by PV systems under PSC. The I–V curves of two
PV modules under PSC were measured. The measured curves were compared
with modeled curves using two methods from the literature and a new
proposed method. Four simplified methods from the literature for
estimating the energy generated by PV systems were analyzed. The
accuracy of these methods was investigated by comparing the
calculated values with measured data from a PV system. For modeling
the I–V curves, the new method showed a mean absolute percentage
error of 1.5% and proved to be accurate. For the evaluated PV system,
using a monthly database and the proposed diffuse shading factor
resulted in differences between the measured and modeled results of
up to 10% per month and 5% for the entire measurement period. The two
proposed methods are simple and accurate. © 2022 Elsevier Ltd
PublicationName: Renewable EnergyAffiliations: Universidade Federal
do Rio Grande do Sul / Brazil
doi: 10.1016/j.renene.2022.10.035
eIssn: 18790682
Volume: 200
IssueIdentifier:
|
A High Voltage Gain ZVT Quasi-Z-Source
Converter With Reduced Voltage Stress
In this article, a new high voltage gain
quasi-Z-source (QZS) dc-dc converter suitable for renewable energy
applications is presented. The proposed converter utilizes a zero
voltage transition auxiliary circuit with coupled inductors to
provide soft-switching conditions for all switches for a wide range
of output power. In addition, a switched capacitor circuit is
employed to obtain a higher voltage gain and lower voltage stress.
The main advantages of the proposed converter include high voltage
gain, high efficiency, reduced switch and diode voltage stress,
continuous input current, and common ground between the output and
input, which are important features for photovoltaic applications. In
this circuit, the reverse recovery problem of diodes is alleviated.
Operating principles and design considerations of the proposed
converter are analyzed. Moreover, to prove the validity of the
theoretical analysis, a 200-W prototype of the proposed converter is
implemented and the experimental results are shown. © 1986-2012
IEEE.
PublicationName: IEEE Transactions on Power ElectronicsAffiliations:
University of Alberta / Canada
doi: 10.1109/TPEL.2022.3178140
eIssn: 19410107
Volume: 37
IssueIdentifier: 11
|
Photovoltaic System Failure and
Alerting
A fault identification may be triggered
by a component of a power generation system (PGS), such as a hardware
component, a controller of a hardware component, a device of the PGS,
a computer connected to the PGS, a computer configured to monitor the
PGS, and/or the like. The fault identification may be the result of a
failure of a component of the PGS, a future failure of a component of
the PGS, a routine maintenance of the PGS, and/or the like. The fault
is converted to a notification on a user interface using a mapping of
faults, root-causes, notification rules, and/or the like. The
conversion may use one or more lookup tables and/or formulas for
determining the impact of the fault on the PGS, and/or the
like.
|
MICROGRID POWER SYSTEM
Embodiments are directed to a microgrid
power system, and applications thereof. In an embodiment, the
microgrid power system comprises a power station including an AC
power source and a stabilizing battery system. The power station may
be configured to generate an AC power and to provide the first AC
power to a power distribution network. A plurality of load centers
may be connected to the power distribution system. Each load center
may include a local battery and a switch connecting the power station
to a local load. A system controller may open the switch to provide
power from the local battery to the local load, and close the switch
to provide power from the power station to the local load. In an
embodiment, a microgrid controller may determine an amount of AC
power generated by the power station that may be consumed by each
load center.
|
A WAVE POWER SYSTEM
Herein is disclosed a wave power system
for extracting energy from water waves. The wave power system
includes a basic structure, at least one effector movably engaged
with the basic structure and adapted for being moved relative to the
basic structure by water waves, and an energy harvesting arrangement
arranged for harvesting energy from the relative movements between
the energy collector and the basic structure The basic structure i a
plurality of duct sections releasable connected to each other.
Conveniently, the wave power system includes several
effectors.
|
Wave energy conversion system
Disclosed is a WEC module for connection
to a WEC system having a power take-off (PTO) configured to generate
electricity in response to fluid flow in a fluid flow path of the
system. The module comprises a mounting portion for releasably
mounting the module to the system, a deformable sealing member
configured to provide a sealed fluid connection between the module
and the fluid flow path, and a working surface configured to
exchange, in response to wave motion, a working fluid with the fluid
flow path via the sealed fluid connection. Also disclosed is a WEC
system and a method of deploying the WEC module. Also disclosed is an
installation device for a working surface and a method of installing
a working surface.
|
DAS 2 : Batiments intelligents
CUSTOMIZED INTERFACE BASED ON VOCAL
INPUT
Various arrangements for using captured
voice to generate a custom interface controller are presented. A
vocal recording from a user may be captured in which a spoken command
and multiple smart-home devices are indicated. One or more common
functions that map to the multiple smart-home devices may be
determined. A custom interface controller may be generated that
controls the one or more common functions of each smart-home device
of the multiple smart-home devices.
|
CONTROL METHOD FOR SMART CLOTHES TREATMENT
SYSTEM
The present invention relates to the
technical field of smart home, and specifically relates to a control
method for a smart clothes treatment system, aiming at solving the
problem that an existing linkage method is more suitable for being
applied to a system of associated home appliances that work according
to the same operating parameters and the linkage mobility and the
degree of intelligence are not good. The control method of the smart
clothes treatment system can automatically recommend care parameter
information of a clothes care device according to washing parameter
information of a clothes washing device, so that the clothes care
device can directly operate on the basis of the recommended care
parameter information. The control method can be appliable to a
combination of linkage home appliances having different types of
operating parameters such as the clothes washing device and the
clothes care device, so that multiple home appliances having a large
difference in operating parameters can perform linkage operation on
the basis of a specific matching scenario, improving the linkage
mobility and degree of intelligence of the entire linkage system,
saving the parameter generation and processing time of the associated
home appliances, and improving the data processing efficiency of the
associated home appliances.
|
Multisource spatial data integration for use
cases applications
Abstract
The reuse and integration of data give big opportunities, supported
by the FAIR data principles. Seamless data integration from
heterogenous sources has been an interest of the geospatial community
for a long time. However, 3D city models, building information
models, and information supporting smart cities present higher
semantic and geometrical complexity, which pose new challenges never
tackled in a comprehensive methodology. Building on previous theories
and studies, this article proposes an overarching workflow and
framework for multisource (geo)spatial data integration. It starts
from the definition of use case‐based requirements for the
integrated data, guides the analysis of integrability of the involved
datasets, suggesting actions to harmonize them, until data merging
and validation. It is finally tested and exemplified in a case study.
This approach allows the development of consistent,
well‐documented, and inclusive data integration workflows, for the
sake of use case automation in various geospatial domains and the
production of interoperable and reusable data.
|
Self‐sustained programmable
hygro‐electronic interfaces for humidity‐regulated hierarchical
information encryption and display
Abstract
The emerging moisture‐driven energy generation (MEG) technology
opens up new possibilities for humidity‐responsive materials,
devices and interdisciplinary opportunities in fields like
information security. However, such potential remains untapped. Here,
we report an original MEG structure with a hygro‐ionic
energy‐conversion route by selective coating of ionic hygroscopic
hydrogels on a carbon black surface. The hygro‐ionic route features
a process in which the scavenged energy is stored in the electrical
double layers formed at the interfaces between the ionic hydrogel and
the carbon nanoparticles. The resultant electrical field developed
across the hydrogel‐coated wet carbon and the rest dry carbon area
is thus durably lasted. Based on this unique structure, we put
forward the hygro‐electronic information interfaces (HEII) for
humidity‐regulated information encryption and display by devising
the hydrogel patterns on the carbon platform. Further by tuning the
hygroscopicity of ionic hydrogels and incorporating encoding methods
(e.g., Morse code), we demonstrate that the HEII platform is
programmable to carry different information in certain humidity
ranges. Unlike those conventional anticounterfeiting methods that
optically reveal the hidden information once the required stimulus is
provided, the new HEII serves as a hierarchical solution for
high‐security encryption and display.
This article is protected by copyright. All rights reserved
|
Recent Advances in the Nanomaterials,
Design, Fabrication Approaches of Thermoelectric Nanogenerators for
Various Applications
This review analyzes the latest advances
in thermoelectric nanogenerator (TENG) materials, design and
fabrication for common and promising applications, including wearable
electronics, sensors, implantable electronics, solar energy
conversion and waste heat recovery. Unlike other earlier reviews,
this manuscript focuses on how cutting‐edge nanotechnology has been
used to maximize thermoelectric power output and enable the design of
flexible and lightweight devices.
Abstract
Thermoelectric nanogenerators (TENGs) are promising sustainable
energy devices that utilize thermoelectric (TE) effect of
nanomaterials to convert a temperature gradient into electrical
energy. Compared to bulk thermoelectric generators (TEGs) that are
commercially available, TENGs are more flexible and power‐dense,
owing to their tuneable nanostructures. Hence, smaller TENGs are
better suited for small form‐factor applications like wearable
electronics, internet of things (IoT) devices, and self‐powered
sensors. However, the higher complexity and cost of TENGs than TEGs
inhibit their widespread adoption. This review appraises the latest
advances in TENG materials, design, and fabrication in optimizing the
performance of TENGs, making TENGs more viable for real‐world
applications. More precisely, this work examines how nanostructure
engineering, nanomaterial compositing, and post‐synthesis treatment
approaches have enhanced the TE properties of common and promising TE
materials, including tellurides, selenides, metal oxides, metal
alloys, silicon, carbon nanomaterials, and organic compounds. Given
that the TE material is a key component in TENGs, this review
highlights how to optimize other vital parameters, including the TENG
configuration, contact interface, form factor, heat sink use, and
folded shape for specific applications. Lastly, critical attributes
of TENGs used in wearable electronics, sensors, implantable
electronics, solar energy conversion, and waste heat recovery are
analyzed.
|
The Role of Interfaces in Ionic
Liquid‐Based Hybrid Materials (Ionogels) for Sensing and Energy
Applications
Ionogels are an emerging class of hybrid
materials endowed with outstanding thermal, electrical, and
mechanical properties. This material system\'s high versatility and
superior tunability attract significant interest among researchers
encompassing a broad spectrum of applications, including energy,
flexible electronics, and biomedical. This review paper focuses on
exploring the interactions within ionogels and their influence on
electrochemical and mechanical performance.
Abstract
Ionogels have established themselves as an intriguing type of
composites, owing to their distinctive properties, including superior
thermal stability, non‐flammability, tunable electrochemical
stability window, and high ionic conductivity. Hybrid materials based
on ionic liquids (ionogels) are held together by interfaces arising
out of intermolecular interactions, including electrostatic, van der
Waals, solvophobic, steric, and hydrogen bonding. The interfaces
within the ionic liquid (ILs) and its multifaceted interplay with the
encapsulating matrix greatly influence the physicochemical and
electronic/ionic interactions within the composite resulting in
exceptional characteristics, allowing for the design of ionogels for
targeted applications. Though ionogels have shown superior properties
comparable to neat ILs, they still exhibit relatively low mechanical
strength, limiting their application in several practical
technologies. Simultaneous enhancement of mechanical durability while
retaining high ionic conductivity is indispensable, which requires
understanding interfaces and related influencing parameters. This
review provides a synergetic comprehension, focusing on the
interactive forces and factors affecting the conductivity, stability,
and robustness of ionogels. Correlating with interfaces, several
strategies, including the implications of nanofiller incorporation on
the electromechanical properties of ionogel, are also elaborated.
Finally, a primer is provided on the application of ionogels in
sensors and energy harvesting technologies.
|
Smart-home enabled package receipt
furniture
The disclosed invention includes a
dwelling fixture. The dwelling fixture includes a compartment
configured to contain packages delivered to the dwelling, an interior
door to access the compartment from the interior of the dwelling, and
an exterior door to access the compartment from the exterior of the
dwelling. The interior door and/or exterior door includes a locking
mechanism to secure the compartment. The dwelling fixture is easily
and securely installable through the walls of the dwelling. The
exterior door is flush with the exterior of the dwelling and
aesthetically integrated with trim that adapts to any exterior
finish.
|
HOUSEHOLD APPLIANCE CONTROL METHOD AND
DEVICE
Disclosed in the present invention are a
household appliance control method and device. In the control method,
an operation process of a household appliance is divided into
multiple operation stages according to the execution order; a control
module reads an instruction from an NFC tag; the control module
deletes an instruction stored in the NFC tag; the control module
obtains a next instruction, the next instruction being an instruction
corresponding to a next operation stage of an operation stage of the
household appliance corresponding to the instruction read by the
control module from the NFC tag; and the control module writes the
obtained next instruction into the NFC tag. In the present invention,
after an instruction in the NFC tag is read, an instruction in the
NFC tag is deleted, the next instruction is written into the NFC tag,
and a user touches a same NFC tag for multiple times to allow the
household appliance to execute multiple instructions according to the
execution order, thereby completing the complete control of the
household appliance, and facilitating the use of the user.
|
METHOD, APPARATUS, AND SYSTEM FOR
ENVIRONMENT CONTROL IN SMART HOME SYSTEM, AND DEVICE
The present application relates to the
technical field of intelligent air conditioners, and discloses a
method, apparatus, and system for environment control in a smart home
system, and a device. The smart home system comprises: a cloud
control device and one or more home environment adjusting devices
communicationally connected to the cloud control device. The method
comprises: when it is determined that a user in a home environment is
in a falling-asleep state, sending a falling-asleep control
instruction to the home environment adjusting devices, such that the
home environment is in a preset falling-asleep scenario; when it is
determined that the user is in a sleeping state, sending a sleeping
control instruction to the home environment adjusting devices, such
that the home environment is in a preset sleeping scenario; and when
it is determined that the user is in an awakening state, sending an
awakening control instruction to the home environment adjusting
devices, such that the home environment is in a preset awakening
scenario. In this way, the smart scenario of the sleep environment is
realized, and the home intelligence is improved.
|
Lightweight anonymous authentication
protocol for resource-constrained smart home devices based on
elliptic curve cryptography
Abstract
The communication channel between the smart home devices and the
remote users is susceptible to numerous privacy and security
compromise attacks. To address these issues, many authentication
protocols have been developed. However, majority of these security
schemes have vulnerabilities that may still be exploited to wreck
havoc in smart homes. For instance, protocols based on low entropy
passwords can be broken by polynomial time adversaries. Apart from
security and privacy challenges, efficiency of the entire
authentication process is another challenge that needs to be solved.
To this end, most of the conventional smart home authentication
protocols incur extensive storage, computation as well as
communication overheads which are unsuitable for resource limited
smart home devices. In this paper, an anonymous lightweight protocol
is developed, based on one-way hashing and elliptic curve point
multiplication operations. Formal verification of this protocol is
executed using ProVerif while its informal security analysis
demonstrates its robustness against majority of the smart home
privacy and security attacks. In terms of operational efficiency,
comparative analysis is carried out which shows that it incurs
relatively low computation, storage and communication
overheads.
|
Honeycomb: An open-source distributed system
for smart buildings
Highlights
•
A bee-inspired, fully distributed, and open-source building IoT
solution
•
Strong flexibility and robustness, multiple functionalities, and easy
deployment
•
Proposed vision-based deep-learning occupancy measurement with
superior performance
•
High user acceptance during long-term stable operation
The bigger picture
Due to the complex and changing needs of building systems, existing
building automation technologies are generally challenging to deploy,
with poor robustness and high energy consumption. Inspired by bee
swarms, we propose Honeycomb, an open-source system that combines
distributed technologies with smart buildings to fill this gap. Like
a honeycomb in nature, we see the whole building as interconnected
“cells,” smart nodes deployed in blocks as “bees,” and
distributed applications as “genes.” Honeycomb exhibits
advancements compared with state-of-the-art smart building solutions:
(1) robustness and flexibility to complex cases; (2)
multi-functionality for operating tasks and energy saving; (3) easy
deployment and compatibility to existing building systems; and (4)
deep-learning perception is integrated with building control.
Operating results have shown that Honeycomb significantly reduces the
energy consumption of equipment, while users indicate a high level of
acceptance in practice.
Summary
Restricted by the hierarchical and centralized system architecture,
smart buildings face challenges such as limited adaptability and
robustness, single application functionalities, and complex
configurations. To address the above shortcomings, we learn from the
activity patterns of natural bee swarms and propose Honeycomb, an
open-source smart-building solution with fully distributed
architecture. Honeycomb is a robust, flexible smart-building solution
without any central server or global leader. An asynchronous
leaderless spanning tree-based communication pattern is developed to
generate and maintain the communication topology of Honeycomb in real
time. Benefiting from this communication pattern, Honeycomb has
plug-and-play ability. Various distributed applications are designed
for building operating tasks and are deployed in a real Honeycomb
prototype. The prototype demonstrates significant energy efficiency
improvement from the control of the heating, ventilation, and air
conditioning (HVAC) system with video-based occupancy information.
Feedback on our Honeycomb prototype through questionnaires of users
shows high acceptance of the controlled indoor environment.
|
Provins : température de l'eau, éclairage
Led… le centre aquatique joue la sobriété
Face à la nécessité de réaliser des
économies d'énergie, le centre aquatique du Provinois, à Provins,
a adapté son fonctionnement.
|
Bâtiment connecté : quelles sont les
attentes des villes et des entreprises ? - Zonebourse.com
Avec le déploiement de la smart city
une révolution technologique est en marche. La mise en place des
systèmes domotiques offre des avantages indéniables,... | 17
octobre 2022
|
Quand les bâtiments intelligents se mettent
au service de la RSE - Le Moniteur
A survey of smart home energy conservation
techniques
Highlights
•
Analysis and comparison of present energy conservation approaches.
•
Investigation of energy conservation attributes employed in numerous
techniques.
•
Identification of performance parameters of energy-saving methods.
•
Investigation of various evaluation metrics used to validate several
energy optimization algorithms.
•
Recognition of possible future research directions.
Abstract
Smart homes are equipped with easy-to-interact interfaces, providing
a more comfortable living environment and less energy consumption.
There are currently satisfactory approaches proposed to deliver
adequate comfort and ease to smart home inhabitants through infrared
sensors, motion sensors, and other similar technologies. However, the
goal of reducing energy consumption is always a significant concern
for smart home stakeholders. A detailed discussion about energy
management techniques might open new leads for advanced research and
even introduce more ways to improve existing methods since a summary
of effective energy conservation techniques are helpful to get a
quick overview of the state-of-the-art techniques. This review study
aims to provide an overview of previously proposed techniques for
energy conservation and energy-saving recommendations. We identify
various critical features in energy conservation techniques, i.e.,
user energy profiling, appliance energy profiling, and off-peak load
scheduling to perform a comparative analysis among different
techniques. Then, we explain various energy conservation techniques,
describe common and rare evaluation metrics, identify several
techniques for realizing synthetic smart home energy consumption
datasets, and provide a statistical analysis of the existing
literature. The survey finally points out possible research
directions which might lead to new inquiries in energy conservation
research.
|
Homnicity : des réseaux Wi-Fi 6 "IA"
pilotés à distance
Homnicity, promoteur immobilier
spécialisé dans la conception et la gestion de résidences pour
seniors, opte pour un réseau Wi-Fi 6 multiservices piloté à
distance et doté de fonctions utilisant l'intelligence artificielle
(IA).
|
Matter 1.0 – La norme pour l'internet des
objets et la certification sont prêtes pour les développeurs
Matter 1.0 arrive bientôt ! Le
consortium à l'origine de la norme Matter pour l'internet des objets
a officiellement approuvé la norme
Cet article Matter 1.0 – La norme pour l'internet des objets et
la certification sont prêtes pour les développeurs est apparu en
premier sur Le Blog Domotique .
|
Amphenol Communications Solutions Extends
the Range of Products for LED Lighting and Rugged Environment
Applications - PR Newswire
/PRNewswire/ -- Amphenol Communications
Solutions is pleased to announce today the release of more options in
its FLH series of mini sealed 2.50mm pitch IP67...
|
Netatmo présente un capteur de qualité de
l'air intelligent - Cityramag
[...] A l'occasion du salon
Light&Building de Francfort, l'entreprise française, Netatmo,
spécialisée dans les objets connectés, a présenté un capteur de
qualité de l'air intelligent dédié aux collectivités. Pour
répondre aux problématiques sanitaires induites par le [...]
|
Kardham digital, Planon et Schneider
Electric s'associent pour créer la première offre intégrée de
Smart Building et Smart Workplace
[...] Kardham Digital, première
Entreprise de Services Numériques dédiée à l'industrie
immobilière filiale du groupe d'immobilier professionnel Kardham et
Schneider Electric, leader de la transformation numérique de la
gestion d'énergie et des automatismes, s'associen [...]
|
Provins : température de l'eau, éclairage
Led… le centre aquatique joue la sobriété
Face à la nécessité de réaliser des
économies d'énergie, le centre aquatique du Provinois, à Provins,
a adapté son fonctionnement.
|
Bâtiment connecté : quelles sont les
attentes des villes et des entreprises ? - Zonebourse.com
Avec le déploiement de la smart city
une révolution technologique est en marche. La mise en place des
systèmes domotiques offre des avantages indéniables,... | 17
octobre 2022
|
Quand les bâtiments intelligents se mettent
au service de la RSE - Le Moniteur
Homnicity : des réseaux Wi-Fi 6 "IA"
pilotés à distance
Homnicity, promoteur immobilier
spécialisé dans la conception et la gestion de résidences pour
seniors, opte pour un réseau Wi-Fi 6 multiservices piloté à
distance et doté de fonctions utilisant l'intelligence artificielle
(IA).
|
Matter 1.0 – La norme pour l'internet des
objets et la certification sont prêtes pour les développeurs
Matter 1.0 arrive bientôt ! Le
consortium à l'origine de la norme Matter pour l'internet des objets
a officiellement approuvé la norme
Cet article Matter 1.0 – La norme pour l'internet des objets et
la certification sont prêtes pour les développeurs est apparu en
premier sur Le Blog Domotique .
|
Amphenol Communications Solutions Extends
the Range of Products for LED Lighting and Rugged Environment
Applications - PR Newswire
/PRNewswire/ -- Amphenol Communications
Solutions is pleased to announce today the release of more options in
its FLH series of mini sealed 2.50mm pitch IP67...
|
Netatmo présente un capteur de qualité de
l'air intelligent - Cityramag
[...] A l'occasion du salon
Light&Building de Francfort, l'entreprise française, Netatmo,
spécialisée dans les objets connectés, a présenté un capteur de
qualité de l'air intelligent dédié aux collectivités. Pour
répondre aux problématiques sanitaires induites par le [...]
|
Kardham digital, Planon et Schneider
Electric s'associent pour créer la première offre intégrée de
Smart Building et Smart Workplace
[...] Kardham Digital, première
Entreprise de Services Numériques dédiée à l'industrie
immobilière filiale du groupe d'immobilier professionnel Kardham et
Schneider Electric, leader de la transformation numérique de la
gestion d'énergie et des automatismes, s'associen [...]
|
Multisource spatial data integration for use
cases applications
Abstract
The reuse and integration of data give big opportunities, supported
by the FAIR data principles. Seamless data integration from
heterogenous sources has been an interest of the geospatial community
for a long time. However, 3D city models, building information
models, and information supporting smart cities present higher
semantic and geometrical complexity, which pose new challenges never
tackled in a comprehensive methodology. Building on previous theories
and studies, this article proposes an overarching workflow and
framework for multisource (geo)spatial data integration. It starts
from the definition of use case‐based requirements for the
integrated data, guides the analysis of integrability of the involved
datasets, suggesting actions to harmonize them, until data merging
and validation. It is finally tested and exemplified in a case study.
This approach allows the development of consistent,
well‐documented, and inclusive data integration workflows, for the
sake of use case automation in various geospatial domains and the
production of interoperable and reusable data.
|
Self‐sustained programmable
hygro‐electronic interfaces for humidity‐regulated hierarchical
information encryption and display
Abstract
The emerging moisture‐driven energy generation (MEG) technology
opens up new possibilities for humidity‐responsive materials,
devices and interdisciplinary opportunities in fields like
information security. However, such potential remains untapped. Here,
we report an original MEG structure with a hygro‐ionic
energy‐conversion route by selective coating of ionic hygroscopic
hydrogels on a carbon black surface. The hygro‐ionic route features
a process in which the scavenged energy is stored in the electrical
double layers formed at the interfaces between the ionic hydrogel and
the carbon nanoparticles. The resultant electrical field developed
across the hydrogel‐coated wet carbon and the rest dry carbon area
is thus durably lasted. Based on this unique structure, we put
forward the hygro‐electronic information interfaces (HEII) for
humidity‐regulated information encryption and display by devising
the hydrogel patterns on the carbon platform. Further by tuning the
hygroscopicity of ionic hydrogels and incorporating encoding methods
(e.g., Morse code), we demonstrate that the HEII platform is
programmable to carry different information in certain humidity
ranges. Unlike those conventional anticounterfeiting methods that
optically reveal the hidden information once the required stimulus is
provided, the new HEII serves as a hierarchical solution for
high‐security encryption and display.
This article is protected by copyright. All rights reserved
|
Recent Advances in the Nanomaterials,
Design, Fabrication Approaches of Thermoelectric Nanogenerators for
Various Applications
This review analyzes the latest advances
in thermoelectric nanogenerator (TENG) materials, design and
fabrication for common and promising applications, including wearable
electronics, sensors, implantable electronics, solar energy
conversion and waste heat recovery. Unlike other earlier reviews,
this manuscript focuses on how cutting‐edge nanotechnology has been
used to maximize thermoelectric power output and enable the design of
flexible and lightweight devices.
Abstract
Thermoelectric nanogenerators (TENGs) are promising sustainable
energy devices that utilize thermoelectric (TE) effect of
nanomaterials to convert a temperature gradient into electrical
energy. Compared to bulk thermoelectric generators (TEGs) that are
commercially available, TENGs are more flexible and power‐dense,
owing to their tuneable nanostructures. Hence, smaller TENGs are
better suited for small form‐factor applications like wearable
electronics, internet of things (IoT) devices, and self‐powered
sensors. However, the higher complexity and cost of TENGs than TEGs
inhibit their widespread adoption. This review appraises the latest
advances in TENG materials, design, and fabrication in optimizing the
performance of TENGs, making TENGs more viable for real‐world
applications. More precisely, this work examines how nanostructure
engineering, nanomaterial compositing, and post‐synthesis treatment
approaches have enhanced the TE properties of common and promising TE
materials, including tellurides, selenides, metal oxides, metal
alloys, silicon, carbon nanomaterials, and organic compounds. Given
that the TE material is a key component in TENGs, this review
highlights how to optimize other vital parameters, including the TENG
configuration, contact interface, form factor, heat sink use, and
folded shape for specific applications. Lastly, critical attributes
of TENGs used in wearable electronics, sensors, implantable
electronics, solar energy conversion, and waste heat recovery are
analyzed.
|
The Role of Interfaces in Ionic
Liquid‐Based Hybrid Materials (Ionogels) for Sensing and Energy
Applications
Ionogels are an emerging class of hybrid
materials endowed with outstanding thermal, electrical, and
mechanical properties. This material system\'s high versatility and
superior tunability attract significant interest among researchers
encompassing a broad spectrum of applications, including energy,
flexible electronics, and biomedical. This review paper focuses on
exploring the interactions within ionogels and their influence on
electrochemical and mechanical performance.
Abstract
Ionogels have established themselves as an intriguing type of
composites, owing to their distinctive properties, including superior
thermal stability, non‐flammability, tunable electrochemical
stability window, and high ionic conductivity. Hybrid materials based
on ionic liquids (ionogels) are held together by interfaces arising
out of intermolecular interactions, including electrostatic, van der
Waals, solvophobic, steric, and hydrogen bonding. The interfaces
within the ionic liquid (ILs) and its multifaceted interplay with the
encapsulating matrix greatly influence the physicochemical and
electronic/ionic interactions within the composite resulting in
exceptional characteristics, allowing for the design of ionogels for
targeted applications. Though ionogels have shown superior properties
comparable to neat ILs, they still exhibit relatively low mechanical
strength, limiting their application in several practical
technologies. Simultaneous enhancement of mechanical durability while
retaining high ionic conductivity is indispensable, which requires
understanding interfaces and related influencing parameters. This
review provides a synergetic comprehension, focusing on the
interactive forces and factors affecting the conductivity, stability,
and robustness of ionogels. Correlating with interfaces, several
strategies, including the implications of nanofiller incorporation on
the electromechanical properties of ionogel, are also elaborated.
Finally, a primer is provided on the application of ionogels in
sensors and energy harvesting technologies.
|
Lightweight anonymous authentication
protocol for resource-constrained smart home devices based on
elliptic curve cryptography
Abstract
The communication channel between the smart home devices and the
remote users is susceptible to numerous privacy and security
compromise attacks. To address these issues, many authentication
protocols have been developed. However, majority of these security
schemes have vulnerabilities that may still be exploited to wreck
havoc in smart homes. For instance, protocols based on low entropy
passwords can be broken by polynomial time adversaries. Apart from
security and privacy challenges, efficiency of the entire
authentication process is another challenge that needs to be solved.
To this end, most of the conventional smart home authentication
protocols incur extensive storage, computation as well as
communication overheads which are unsuitable for resource limited
smart home devices. In this paper, an anonymous lightweight protocol
is developed, based on one-way hashing and elliptic curve point
multiplication operations. Formal verification of this protocol is
executed using ProVerif while its informal security analysis
demonstrates its robustness against majority of the smart home
privacy and security attacks. In terms of operational efficiency,
comparative analysis is carried out which shows that it incurs
relatively low computation, storage and communication
overheads.
|
Honeycomb: An open-source distributed system
for smart buildings
Highlights
•
A bee-inspired, fully distributed, and open-source building IoT
solution
•
Strong flexibility and robustness, multiple functionalities, and easy
deployment
•
Proposed vision-based deep-learning occupancy measurement with
superior performance
•
High user acceptance during long-term stable operation
The bigger picture
Due to the complex and changing needs of building systems, existing
building automation technologies are generally challenging to deploy,
with poor robustness and high energy consumption. Inspired by bee
swarms, we propose Honeycomb, an open-source system that combines
distributed technologies with smart buildings to fill this gap. Like
a honeycomb in nature, we see the whole building as interconnected
“cells,” smart nodes deployed in blocks as “bees,” and
distributed applications as “genes.” Honeycomb exhibits
advancements compared with state-of-the-art smart building solutions:
(1) robustness and flexibility to complex cases; (2)
multi-functionality for operating tasks and energy saving; (3) easy
deployment and compatibility to existing building systems; and (4)
deep-learning perception is integrated with building control.
Operating results have shown that Honeycomb significantly reduces the
energy consumption of equipment, while users indicate a high level of
acceptance in practice.
Summary
Restricted by the hierarchical and centralized system architecture,
smart buildings face challenges such as limited adaptability and
robustness, single application functionalities, and complex
configurations. To address the above shortcomings, we learn from the
activity patterns of natural bee swarms and propose Honeycomb, an
open-source smart-building solution with fully distributed
architecture. Honeycomb is a robust, flexible smart-building solution
without any central server or global leader. An asynchronous
leaderless spanning tree-based communication pattern is developed to
generate and maintain the communication topology of Honeycomb in real
time. Benefiting from this communication pattern, Honeycomb has
plug-and-play ability. Various distributed applications are designed
for building operating tasks and are deployed in a real Honeycomb
prototype. The prototype demonstrates significant energy efficiency
improvement from the control of the heating, ventilation, and air
conditioning (HVAC) system with video-based occupancy information.
Feedback on our Honeycomb prototype through questionnaires of users
shows high acceptance of the controlled indoor environment.
|
A survey of smart home energy conservation
techniques
Highlights
•
Analysis and comparison of present energy conservation approaches.
•
Investigation of energy conservation attributes employed in numerous
techniques.
•
Identification of performance parameters of energy-saving methods.
•
Investigation of various evaluation metrics used to validate several
energy optimization algorithms.
•
Recognition of possible future research directions.
Abstract
Smart homes are equipped with easy-to-interact interfaces, providing
a more comfortable living environment and less energy consumption.
There are currently satisfactory approaches proposed to deliver
adequate comfort and ease to smart home inhabitants through infrared
sensors, motion sensors, and other similar technologies. However, the
goal of reducing energy consumption is always a significant concern
for smart home stakeholders. A detailed discussion about energy
management techniques might open new leads for advanced research and
even introduce more ways to improve existing methods since a summary
of effective energy conservation techniques are helpful to get a
quick overview of the state-of-the-art techniques. This review study
aims to provide an overview of previously proposed techniques for
energy conservation and energy-saving recommendations. We identify
various critical features in energy conservation techniques, i.e.,
user energy profiling, appliance energy profiling, and off-peak load
scheduling to perform a comparative analysis among different
techniques. Then, we explain various energy conservation techniques,
describe common and rare evaluation metrics, identify several
techniques for realizing synthetic smart home energy consumption
datasets, and provide a statistical analysis of the existing
literature. The survey finally points out possible research
directions which might lead to new inquiries in energy conservation
research.
|
CUSTOMIZED INTERFACE BASED ON VOCAL
INPUT
Various arrangements for using captured
voice to generate a custom interface controller are presented. A
vocal recording from a user may be captured in which a spoken command
and multiple smart-home devices are indicated. One or more common
functions that map to the multiple smart-home devices may be
determined. A custom interface controller may be generated that
controls the one or more common functions of each smart-home device
of the multiple smart-home devices.
|
CONTROL METHOD FOR SMART CLOTHES TREATMENT
SYSTEM
The present invention relates to the
technical field of smart home, and specifically relates to a control
method for a smart clothes treatment system, aiming at solving the
problem that an existing linkage method is more suitable for being
applied to a system of associated home appliances that work according
to the same operating parameters and the linkage mobility and the
degree of intelligence are not good. The control method of the smart
clothes treatment system can automatically recommend care parameter
information of a clothes care device according to washing parameter
information of a clothes washing device, so that the clothes care
device can directly operate on the basis of the recommended care
parameter information. The control method can be appliable to a
combination of linkage home appliances having different types of
operating parameters such as the clothes washing device and the
clothes care device, so that multiple home appliances having a large
difference in operating parameters can perform linkage operation on
the basis of a specific matching scenario, improving the linkage
mobility and degree of intelligence of the entire linkage system,
saving the parameter generation and processing time of the associated
home appliances, and improving the data processing efficiency of the
associated home appliances.
|
Smart-home enabled package receipt
furniture
The disclosed invention includes a
dwelling fixture. The dwelling fixture includes a compartment
configured to contain packages delivered to the dwelling, an interior
door to access the compartment from the interior of the dwelling, and
an exterior door to access the compartment from the exterior of the
dwelling. The interior door and/or exterior door includes a locking
mechanism to secure the compartment. The dwelling fixture is easily
and securely installable through the walls of the dwelling. The
exterior door is flush with the exterior of the dwelling and
aesthetically integrated with trim that adapts to any exterior
finish.
|
HOUSEHOLD APPLIANCE CONTROL METHOD AND
DEVICE
Disclosed in the present invention are a
household appliance control method and device. In the control method,
an operation process of a household appliance is divided into
multiple operation stages according to the execution order; a control
module reads an instruction from an NFC tag; the control module
deletes an instruction stored in the NFC tag; the control module
obtains a next instruction, the next instruction being an instruction
corresponding to a next operation stage of an operation stage of the
household appliance corresponding to the instruction read by the
control module from the NFC tag; and the control module writes the
obtained next instruction into the NFC tag. In the present invention,
after an instruction in the NFC tag is read, an instruction in the
NFC tag is deleted, the next instruction is written into the NFC tag,
and a user touches a same NFC tag for multiple times to allow the
household appliance to execute multiple instructions according to the
execution order, thereby completing the complete control of the
household appliance, and facilitating the use of the user.
|
METHOD, APPARATUS, AND SYSTEM FOR
ENVIRONMENT CONTROL IN SMART HOME SYSTEM, AND DEVICE
The present application relates to the
technical field of intelligent air conditioners, and discloses a
method, apparatus, and system for environment control in a smart home
system, and a device. The smart home system comprises: a cloud
control device and one or more home environment adjusting devices
communicationally connected to the cloud control device. The method
comprises: when it is determined that a user in a home environment is
in a falling-asleep state, sending a falling-asleep control
instruction to the home environment adjusting devices, such that the
home environment is in a preset falling-asleep scenario; when it is
determined that the user is in a sleeping state, sending a sleeping
control instruction to the home environment adjusting devices, such
that the home environment is in a preset sleeping scenario; and when
it is determined that the user is in an awakening state, sending an
awakening control instruction to the home environment adjusting
devices, such that the home environment is in a preset awakening
scenario. In this way, the smart scenario of the sleep environment is
realized, and the home intelligence is improved.
|
DAS 3 : Equipements pour la mobilité
électrique
Coke powder as a discharging agent for waste
battery recycling and method thereof
The invention discloses a discharging
method and discharging agent for recycling waste batteries. Waste
batteries are immersed with coke powder to form a discharging circuit
and to remove the residual power off the waste batteries before
destruction of the batteries. The discharging performance varies with
resistivity of the coke powder, and can be measured by watching the
temperature and/or the temperature change trend. The resistivity
depends on the ratio of carbon composition of the coke powder and the
contact quality between the coke powder and the waste batteries, and
the pressure on coke powder can adjust the contact quality.
Therefore, the method is able to adjust the discharging performance
by adjusting the pressure to meet the discharging requirements of
efficiency and safety.
|
Performing active interrogation of battery
packs in situ to obtain precise SOC and SOH estimates
A characteristic, such as State Of
Health (SOH) or State Of Charge (SOC), is estimated for an Energy
Storage System (ESS) by supplying a pre-determined signal to the ESS,
measuring a response signal output by the ESS, and obtaining an
impedance spectrum of the ESS. In one example, the ESS is one of
several electrochemical battery packs of an electric vehicle. The
pre-determined signal is a current signal generated by a switching
power converter that transfers charge from the battery pack to other
battery packs or transfers charge from the other battery packs onto
the battery pack. The pre-determined signal is generated without
disrupting any load supplied by the battery packs. The battery pack
outputs a voltage signal in response to receiving the pre-determined
current signal. A processor obtains an impedance spectrum using the
current and voltage signals, and thereby obtains an SOH and SOC
estimate of the battery.
|
Design optimization of energy‐storing
hybrid supercapacitor composite for electric vehicle\’s body
panel
As electric vehicles (EVs) are quickly
evolving, innovative technologies like “Energized Composite” that
can store energy on the car\’s body helps extend its range per
charge. The composite\’s unique ability to function as both
structural body panel and charge storage medium stems from its unique
pattern design between “Electrochemical Areas (EcA)” and “Epoxy
Area (EpA).” Here we present a design optimization study to obtain
a balanced ratio between EcA vs. EpA to maximize the charge storage
ability of the composite while maintaining a decent tensile and
bending strength. Simulations using ANSYS software and experimental
confirmation using universal testing machines and electrochemical
analyzers are used to derive optimum ratios between EcA and EpA.
Uniaxial tension test and 3‐point bend test have been performed to
optimize the tensile and bend strengths, whereas cyclic voltammetry,
galvanic charge‐discharge and electrochemical impedance
spectroscopy are used to determine the electrochemical performance of
various design configurations by modulating the ratios of EcA vs.
EpA. Overall, the highest achieved energy storage per lamina is 2531
mWh/m2 for a maximum of 81.6% EcA with a tensile strength of 417.73
MPa and bending strength of 263.13 MPa. This study is highly
beneficial for EVs as well as many aerospace applications.
This article is protected by copyright. All rights reserved.
|
Battery Recycling Technologies and
Equipment
Recycling of Power Lithium-Ion
Batteries Explore the past, present, and future of power
lithium-ion battery recycling, from the governing regulatory
framework to predictions of the future of the industry In
Recycling of Power Lithium-Ion Batteries: Technology, Equipment,
and Policies, a team of distinguished researchers and engineers
delivers an authoritative and illuminating exploration of the
industrial status and development trends in the global power
lithium-ion battery sector. The book examines the development of
advanced battery materials and new recycling technologies, as well as
typical case studies in enterprise battery recycling. The authors
provide a roadmap to the development of spent power battery recycling
enterprises that can provide support to the sustainable development
industry. Recycling of Power Lithium-Ion Batteries
discusses a wide variety of topics with immediate applications to
modern industry, including new application scenarios for power
lithium-ion batteries, as well as an examination of the laws,
regulations, and standards governing battery recycling. Readers
will also find: - A thorough introduction to the status and
development of the lithium-ion battery and its key materials
- Fulsome discussions of battery recycling technologies and
equipment, including pre-treatment technology for battery
recycling
- Comprehensive explorations of the life cycle of
power lithium-ion batteries and the impact of battery recycling
- Expansive treatments of the technology outlook in the lithium-ion
battery space, including green battery design and recovery
systems
Perfect for materials scientists, environmental
chemists, and power technology engineers, Recycling of Power
Lithium-Ion Batteries: Technology, Equipment, and Policies will
also earn a place in the libraries of chemical and process engineers,
electrochemists, and professionals working at waste disposal
sites.Recycling of Power Lithium-Ion Batteries Explore
the past, present, and future of power lithium-ion battery recycling,
from the governing regulatory framework to predictions of the future
of the industry In Recycling of Power Lithium-Ion
Batteries: Technology, Equipment, and Policies, a team of
distinguished researchers and engineers delivers an authoritative and
illuminating exploration of the industrial status and development
trends in the global power lithium-ion battery sector. The book
examines the development of advanced battery materials and new
recycling technologies, as well as typical case studies in enterprise
battery recycling. The authors provide a roadmap to the development
of spent power battery recycling enterprises that can provide support
to the sustainable development industry. Recycling of Power
Lithium-Ion Batteries discusses a wide variety of topics with
immediate applications to modern industry, including new application
scenarios for power lithium-ion batteries, as well as an examination
of the laws, regulations, and standards governing battery recycling.
Readers will also find: - A thorough introduction to the
status and development of the lithium-ion battery and its key
materials
- Fulsome discussions of battery recycling
technologies and equipment, including pre-treatment technology for
battery recycling
- Comprehensive explorations of the life
cycle of power lithium-ion batteries and the impact of battery
recycling
- Expansive treatments of the technology outlook in
the lithium-ion battery space, including green battery design and
recovery systems
Perfect for materials scientists,
environmental chemists, and power technology engineers, Recycling
of Power Lithium-Ion Batteries: Technology, Equipment, and
Policies will also earn a place in the libraries of chemical and
process engineers, electrochemists, and professionals working at
waste disposal sites.
Summary
This chapter predominantly introduces the flow sheet and research
status of spent battery recycling and the typical equipment to
realize the recycling processes. Battery recycling processes include
pretreatment, hydrometallurgy, pyrometallurgy, material repair, and
regeneration. The current status of spent power battery recycling
technology is analyzed to compare the characteristics and differences
of different technologies. Meanwhile, the advantages and existing
problems of current recycling technology are analyzed, and the
development trend of the technology is forecasted. Finally, this
chapter further examines recycling processing and equipment
development and draws a development road map for the spent power
battery recycling field.
|
ITU-T L.1318 (08/2022): Q factor: A
fundamental metric expressing integrated circuit energy
efficiency
...TANDARDIZATION SECTOR OF ITU
(08/2022) SERIES L: ENVIRONMENT AND ICTS, CLIMATE CHANGE, E-WASTE,
ENERGY EFFICIENCY; CONSTRUCTION, INSTALLATION AND PROTECTION OF
CABLES AND OTHER ELEMENTS OF OUTSIDE PLANT Energy eff...
|
ITU-T L.1230 (08/2022): Specifications of 10
kVAC input and up to 400 VDC output integrated power system in data
centre and telecommunication room
... ENERGY STORAGE L.1200–L.1299
ENERGY EFFICIENCY, SMART ENERGY AND GREEN DATA CENTRES
L.1300–L.1399 ASSES......as information and communication
technology (ICT) equipment power density is increasing rapidly.
Furthermore,...
|
BYD RÉVÈLE SA PLATEFORME POUR BUS
ÉLECTRIQUES AVEC BATTERIES À LAMES
[...] Jusqu'à présent, le constructeur
chinois BYD réservait ses batteries LFP à lames pour ses voitures
particulières électriques. Leur adoption dans les autobus est une
véritable révolution.Une foule d'avantages
C'est dans le cadre du salon des véhicules commerciau [...]
|
Electric Vehicles Between Recycling and
Sustainable Development - @.ro
Even if until now electric vehicles are
not 100% clean, they are becoming an increasingly viable alternative
to classic transport solutions, bringing in addition new innovations
designed to help within the general concept of sustainable
development, especially within large urban areas. In addition to the
classic transport function, through new technologies (V2V, V2G), an
electric vehicle can be successfully transformed into an active tool
in achieving the goals of a Smart City. This paper presents several
alternatives both as an effective part of control hardware for an
electric vehicle and algorithms implemented on this hardware. The
special characteristics that can be implemented in an electric
vehicle are highlighted by presenting the achievements of such
vehicles. The original note is the conversion of a vintage off-road
vehicle from Romania into an electric vehicle. It is noteworthy that
many of the hardware components used in the construction of various
electric vehicles are recycled so it can be said that the first step
in terms of the concept of sustainable development has already been
achieved. All electric vehicles designed or converted at the
University of Petrosani benefit from LoRa type communications (a
communication network still little used in Romania but which has
proven its reliability) and are intended for use inside an urban area
and can successfully fulfil the role of the platform for monitoring
the air quality parameters in a certain area precisely in view of the
fact that it does not pollute directly.
|
CONTROL METHOD AND CONTROL DEVICE FOR HYBRID
VEHICLE
The present invention comprises: a first
drive source (an internal combustion engine (2) and a first motor
generator (3)); a second drive source (a second motor generator (4));
a first clutch (9); and a second clutch (12). In a neutral mode, the
first and second clutches (9, 12) are in a disengaged state, and a
third motor generator (16) drives the rear wheels (15) using the
electricity generated by the first motor generator (3). In a parallel
mode, the first and second clutches (9, 12) are in an engaged state,
and the first and second drive sources drive the front wheels (1),
while the third motor generator 16 drives the rear wheels (15). In
the case where there is sufficient battery power when switching from
the neutral mode to the parallel mode, synchronization controls are
simultaneously performed for the front and rear rotation speeds of
the two clutches (9, 12). In the case where the battery power is
insufficient, the two synchronization controls are performed
sequentially.
|
MOBILE PLATFORM FOR CHARGING ELECTRIC
VEHICLES
A mobile platform that is equipped to
charge an electrical vehicle and supply liquid fuel to an internal
combustion engine vehicle. The mobile platform includes a chassis
configured to be pulled by a tow vehicle. A battery bank is
positioned on the chassis. A renewable energy recharging device and a
liquid fuel powered recharging device are each positioned on the
chassis to recharge the battery bank. An electrical terminal is
operatively connected to the battery bank to deliver electric power
from the battery bank to an electric vehicle. A fuel tank is
positioned on the chassis to store liquid fuel and a fuel line
extends from the fuel tank to deliver the liquid fuel to an internal
combustion engine vehicle.
|
PEM fuel cell-assisted lithium ion battery
electric vehicle integrated with an air-based thermal management
system
Highlights
•
A novel PEM fuel cell-battery integration is proposed for a hydrogen
vehicle.
•
Heat generation in lithium ion battery is recovered by preheating
fuel cell air.
•
The applicability and compatibility of the proposed system are
investigated.
•
A parametric study is performed for the integration in hydrogen
electric vehicle.
Abstract
A novel integration of a proton exchange membrane (PEM) fuel cell
with lithium ion batteries is presented for a hydrogen electric
vehicle. The performance of the PEM fuel cell is affected by the
temperature of input air that is drawn from the environment for
electrochemical reaction with the hydrogen. Preheating the input air
before it enters the PEM fuel cell can potentially improve its
performance, especially during cold weather conditions. In addition,
removing the heat generated in the lithium ion battery cells is
necessary for efficient, safe and long-term operation of the hydrogen
electric vehicle. In this context, this study introduces an
air-cooled battery thermal management system in which the air is
taken from the environment, preheated through cooling of batteries
and then used in the PEM fuel cell stack. Both the PEM fuel cell and
the lithium ion battery systems are analyzed to investigate the
compatibility and applicability of the proposed system. Also, the PEM
fuel cell electrical power output and energy efficiency are assessed
through varying the operating conditions. It is found that, at a
current density of 0.4 A/cm2, the energy efficiency of the PEM fuel
cell improves from 45\% to 48\% by preheating the air from 10
to 40
. Furthermore, during discharge of the lithium ion battery, the
cooling air removes an average heat generation rate of 3.5 W per unit
area of the lithium ion battery to maintain the battery temperature
at around 25
.
|
Premiere Ride: Siemens and Deutsche Bahn
Test Hydrogen Train and Mobile Fueling Station for First Time -
Hydrogen Central
Premiere ride: Siemens and Deutsche Bahn
test hydrogen train and mobile fueling station for first time.
Premiere ride in the new hydrogen
|
Lhyfe Secures Deal with Plug to Provide 50mw
of PEM Electrolyzers for Renewable Green Hydrogen Production -
Hydrogen Central
Lhyfe secures deal with Plug to provide
50mw of PEM electrolyzers for renewable green hydrogen production.
Lhyfe a pure player in renewable
|
Ballard Power Systems (BLDP), (TSX:BLDP) –
Ballard to power India's first hydrogen trains - Benzinga
VANCOUVER, BC and HYDERABAD, India ,
Sept. 6, 2022 /CNW/ - Ballard Power Systems (NASDAQ:BLDP) (TSX:BLDP)
today announced a fuel cell module order from Medha Servo Drives, a
leading rail system integrator, who has been
|
ITU-T L.1040 (08/2022): Effects of
information and communication technology-enabled autonomy on vehicles
longevity and waste creation
....... 5 Appendix I – Model for
estimating ICT and battery waste generation from vehicles including
autonomo...... L.330–L.349 Operation support and infrastructure
management L.350–L.379 Disaster management L.380–L.399
PASSI......rtake those of HW. AVs rely highly on the control system,
and like technology upgrades, those for SW may b...
|
ITU-T K.152 (08/2022): Electromagnetic
compatibility requirements for power equipment in telecommunication
facilities
...ly connected to Low Voltage public
network, where smart meters can be present, and without transformer
on......nducted emission from GCPCs, air conditioners and lighting
equipment enters the rectifier, and this may caus...
|
BYD RÉVÈLE SA PLATEFORME POUR BUS
ÉLECTRIQUES AVEC BATTERIES À LAMES
[...] Jusqu'à présent, le constructeur
chinois BYD réservait ses batteries LFP à lames pour ses voitures
particulières électriques. Leur adoption dans les autobus est une
véritable révolution.Une foule d'avantages
C'est dans le cadre du salon des véhicules commerciau [...]
|
Premiere Ride: Siemens and Deutsche Bahn
Test Hydrogen Train and Mobile Fueling Station for First Time -
Hydrogen Central
Premiere ride: Siemens and Deutsche Bahn
test hydrogen train and mobile fueling station for first time.
Premiere ride in the new hydrogen
|
Lhyfe Secures Deal with Plug to Provide 50mw
of PEM Electrolyzers for Renewable Green Hydrogen Production -
Hydrogen Central
Lhyfe secures deal with Plug to provide
50mw of PEM electrolyzers for renewable green hydrogen production.
Lhyfe a pure player in renewable
|
Ballard Power Systems (BLDP), (TSX:BLDP) –
Ballard to power India's first hydrogen trains - Benzinga
VANCOUVER, BC and HYDERABAD, India ,
Sept. 6, 2022 /CNW/ - Ballard Power Systems (NASDAQ:BLDP) (TSX:BLDP)
today announced a fuel cell module order from Medha Servo Drives, a
leading rail system integrator, who has been
|
Norme - NF : France ; EN : Europe ; ISO :
Internationale et PR : projet de norme
ITU-T L.1318 (08/2022): Q factor: A
fundamental metric expressing integrated circuit energy
efficiency
...TANDARDIZATION SECTOR OF ITU
(08/2022) SERIES L: ENVIRONMENT AND ICTS, CLIMATE CHANGE, E-WASTE,
ENERGY EFFICIENCY; CONSTRUCTION, INSTALLATION AND PROTECTION OF
CABLES AND OTHER ELEMENTS OF OUTSIDE PLANT Energy eff...
|
ITU-T L.1230 (08/2022): Specifications of 10
kVAC input and up to 400 VDC output integrated power system in data
centre and telecommunication room
... ENERGY STORAGE L.1200–L.1299
ENERGY EFFICIENCY, SMART ENERGY AND GREEN DATA CENTRES
L.1300–L.1399 ASSES......as information and communication
technology (ICT) equipment power density is increasing rapidly.
Furthermore,...
|
ITU-T L.1040 (08/2022): Effects of
information and communication technology-enabled autonomy on vehicles
longevity and waste creation
....... 5 Appendix I – Model for
estimating ICT and battery waste generation from vehicles including
autonomo...... L.330–L.349 Operation support and infrastructure
management L.350–L.379 Disaster management L.380–L.399
PASSI......rtake those of HW. AVs rely highly on the control system,
and like technology upgrades, those for SW may b...
|
ITU-T K.152 (08/2022): Electromagnetic
compatibility requirements for power equipment in telecommunication
facilities
...ly connected to Low Voltage public
network, where smart meters can be present, and without transformer
on......nducted emission from GCPCs, air conditioners and lighting
equipment enters the rectifier, and this may caus...
|
Design optimization of energy‐storing
hybrid supercapacitor composite for electric vehicle\’s body
panel
As electric vehicles (EVs) are quickly
evolving, innovative technologies like “Energized Composite” that
can store energy on the car\’s body helps extend its range per
charge. The composite\’s unique ability to function as both
structural body panel and charge storage medium stems from its unique
pattern design between “Electrochemical Areas (EcA)” and “Epoxy
Area (EpA).” Here we present a design optimization study to obtain
a balanced ratio between EcA vs. EpA to maximize the charge storage
ability of the composite while maintaining a decent tensile and
bending strength. Simulations using ANSYS software and experimental
confirmation using universal testing machines and electrochemical
analyzers are used to derive optimum ratios between EcA and EpA.
Uniaxial tension test and 3‐point bend test have been performed to
optimize the tensile and bend strengths, whereas cyclic voltammetry,
galvanic charge‐discharge and electrochemical impedance
spectroscopy are used to determine the electrochemical performance of
various design configurations by modulating the ratios of EcA vs.
EpA. Overall, the highest achieved energy storage per lamina is 2531
mWh/m2 for a maximum of 81.6% EcA with a tensile strength of 417.73
MPa and bending strength of 263.13 MPa. This study is highly
beneficial for EVs as well as many aerospace applications.
This article is protected by copyright. All rights reserved.
|
Battery Recycling Technologies and
Equipment
Recycling of Power Lithium-Ion
Batteries Explore the past, present, and future of power
lithium-ion battery recycling, from the governing regulatory
framework to predictions of the future of the industry In
Recycling of Power Lithium-Ion Batteries: Technology, Equipment,
and Policies, a team of distinguished researchers and engineers
delivers an authoritative and illuminating exploration of the
industrial status and development trends in the global power
lithium-ion battery sector. The book examines the development of
advanced battery materials and new recycling technologies, as well as
typical case studies in enterprise battery recycling. The authors
provide a roadmap to the development of spent power battery recycling
enterprises that can provide support to the sustainable development
industry. Recycling of Power Lithium-Ion Batteries
discusses a wide variety of topics with immediate applications to
modern industry, including new application scenarios for power
lithium-ion batteries, as well as an examination of the laws,
regulations, and standards governing battery recycling. Readers
will also find: - A thorough introduction to the status and
development of the lithium-ion battery and its key materials
- Fulsome discussions of battery recycling technologies and
equipment, including pre-treatment technology for battery
recycling
- Comprehensive explorations of the life cycle of
power lithium-ion batteries and the impact of battery recycling
- Expansive treatments of the technology outlook in the lithium-ion
battery space, including green battery design and recovery
systems
Perfect for materials scientists, environmental
chemists, and power technology engineers, Recycling of Power
Lithium-Ion Batteries: Technology, Equipment, and Policies will
also earn a place in the libraries of chemical and process engineers,
electrochemists, and professionals working at waste disposal
sites.Recycling of Power Lithium-Ion Batteries Explore
the past, present, and future of power lithium-ion battery recycling,
from the governing regulatory framework to predictions of the future
of the industry In Recycling of Power Lithium-Ion
Batteries: Technology, Equipment, and Policies, a team of
distinguished researchers and engineers delivers an authoritative and
illuminating exploration of the industrial status and development
trends in the global power lithium-ion battery sector. The book
examines the development of advanced battery materials and new
recycling technologies, as well as typical case studies in enterprise
battery recycling. The authors provide a roadmap to the development
of spent power battery recycling enterprises that can provide support
to the sustainable development industry. Recycling of Power
Lithium-Ion Batteries discusses a wide variety of topics with
immediate applications to modern industry, including new application
scenarios for power lithium-ion batteries, as well as an examination
of the laws, regulations, and standards governing battery recycling.
Readers will also find: - A thorough introduction to the
status and development of the lithium-ion battery and its key
materials
- Fulsome discussions of battery recycling
technologies and equipment, including pre-treatment technology for
battery recycling
- Comprehensive explorations of the life
cycle of power lithium-ion batteries and the impact of battery
recycling
- Expansive treatments of the technology outlook in
the lithium-ion battery space, including green battery design and
recovery systems
Perfect for materials scientists,
environmental chemists, and power technology engineers, Recycling
of Power Lithium-Ion Batteries: Technology, Equipment, and
Policies will also earn a place in the libraries of chemical and
process engineers, electrochemists, and professionals working at
waste disposal sites.
Summary
This chapter predominantly introduces the flow sheet and research
status of spent battery recycling and the typical equipment to
realize the recycling processes. Battery recycling processes include
pretreatment, hydrometallurgy, pyrometallurgy, material repair, and
regeneration. The current status of spent power battery recycling
technology is analyzed to compare the characteristics and differences
of different technologies. Meanwhile, the advantages and existing
problems of current recycling technology are analyzed, and the
development trend of the technology is forecasted. Finally, this
chapter further examines recycling processing and equipment
development and draws a development road map for the spent power
battery recycling field.
|
Electric Vehicles Between Recycling and
Sustainable Development - @.ro
Even if until now electric vehicles are
not 100% clean, they are becoming an increasingly viable alternative
to classic transport solutions, bringing in addition new innovations
designed to help within the general concept of sustainable
development, especially within large urban areas. In addition to the
classic transport function, through new technologies (V2V, V2G), an
electric vehicle can be successfully transformed into an active tool
in achieving the goals of a Smart City. This paper presents several
alternatives both as an effective part of control hardware for an
electric vehicle and algorithms implemented on this hardware. The
special characteristics that can be implemented in an electric
vehicle are highlighted by presenting the achievements of such
vehicles. The original note is the conversion of a vintage off-road
vehicle from Romania into an electric vehicle. It is noteworthy that
many of the hardware components used in the construction of various
electric vehicles are recycled so it can be said that the first step
in terms of the concept of sustainable development has already been
achieved. All electric vehicles designed or converted at the
University of Petrosani benefit from LoRa type communications (a
communication network still little used in Romania but which has
proven its reliability) and are intended for use inside an urban area
and can successfully fulfil the role of the platform for monitoring
the air quality parameters in a certain area precisely in view of the
fact that it does not pollute directly.
|
PEM fuel cell-assisted lithium ion battery
electric vehicle integrated with an air-based thermal management
system
Highlights
•
A novel PEM fuel cell-battery integration is proposed for a hydrogen
vehicle.
•
Heat generation in lithium ion battery is recovered by preheating
fuel cell air.
•
The applicability and compatibility of the proposed system are
investigated.
•
A parametric study is performed for the integration in hydrogen
electric vehicle.
Abstract
A novel integration of a proton exchange membrane (PEM) fuel cell
with lithium ion batteries is presented for a hydrogen electric
vehicle. The performance of the PEM fuel cell is affected by the
temperature of input air that is drawn from the environment for
electrochemical reaction with the hydrogen. Preheating the input air
before it enters the PEM fuel cell can potentially improve its
performance, especially during cold weather conditions. In addition,
removing the heat generated in the lithium ion battery cells is
necessary for efficient, safe and long-term operation of the hydrogen
electric vehicle. In this context, this study introduces an
air-cooled battery thermal management system in which the air is
taken from the environment, preheated through cooling of batteries
and then used in the PEM fuel cell stack. Both the PEM fuel cell and
the lithium ion battery systems are analyzed to investigate the
compatibility and applicability of the proposed system. Also, the PEM
fuel cell electrical power output and energy efficiency are assessed
through varying the operating conditions. It is found that, at a
current density of 0.4 A/cm2, the energy efficiency of the PEM fuel
cell improves from 45\% to 48\% by preheating the air from 10
to 40
. Furthermore, during discharge of the lithium ion battery, the
cooling air removes an average heat generation rate of 3.5 W per unit
area of the lithium ion battery to maintain the battery temperature
at around 25
.
|
Coke powder as a discharging agent for waste
battery recycling and method thereof
The invention discloses a discharging
method and discharging agent for recycling waste batteries. Waste
batteries are immersed with coke powder to form a discharging circuit
and to remove the residual power off the waste batteries before
destruction of the batteries. The discharging performance varies with
resistivity of the coke powder, and can be measured by watching the
temperature and/or the temperature change trend. The resistivity
depends on the ratio of carbon composition of the coke powder and the
contact quality between the coke powder and the waste batteries, and
the pressure on coke powder can adjust the contact quality.
Therefore, the method is able to adjust the discharging performance
by adjusting the pressure to meet the discharging requirements of
efficiency and safety.
|
Performing active interrogation of battery
packs in situ to obtain precise SOC and SOH estimates
A characteristic, such as State Of
Health (SOH) or State Of Charge (SOC), is estimated for an Energy
Storage System (ESS) by supplying a pre-determined signal to the ESS,
measuring a response signal output by the ESS, and obtaining an
impedance spectrum of the ESS. In one example, the ESS is one of
several electrochemical battery packs of an electric vehicle. The
pre-determined signal is a current signal generated by a switching
power converter that transfers charge from the battery pack to other
battery packs or transfers charge from the other battery packs onto
the battery pack. The pre-determined signal is generated without
disrupting any load supplied by the battery packs. The battery pack
outputs a voltage signal in response to receiving the pre-determined
current signal. A processor obtains an impedance spectrum using the
current and voltage signals, and thereby obtains an SOH and SOC
estimate of the battery.
|
CONTROL METHOD AND CONTROL DEVICE FOR HYBRID
VEHICLE
The present invention comprises: a first
drive source (an internal combustion engine (2) and a first motor
generator (3)); a second drive source (a second motor generator (4));
a first clutch (9); and a second clutch (12). In a neutral mode, the
first and second clutches (9, 12) are in a disengaged state, and a
third motor generator (16) drives the rear wheels (15) using the
electricity generated by the first motor generator (3). In a parallel
mode, the first and second clutches (9, 12) are in an engaged state,
and the first and second drive sources drive the front wheels (1),
while the third motor generator 16 drives the rear wheels (15). In
the case where there is sufficient battery power when switching from
the neutral mode to the parallel mode, synchronization controls are
simultaneously performed for the front and rear rotation speeds of
the two clutches (9, 12). In the case where the battery power is
insufficient, the two synchronization controls are performed
sequentially.
|
MOBILE PLATFORM FOR CHARGING ELECTRIC
VEHICLES
A mobile platform that is equipped to
charge an electrical vehicle and supply liquid fuel to an internal
combustion engine vehicle. The mobile platform includes a chassis
configured to be pulled by a tow vehicle. A battery bank is
positioned on the chassis. A renewable energy recharging device and a
liquid fuel powered recharging device are each positioned on the
chassis to recharge the battery bank. An electrical terminal is
operatively connected to the battery bank to deliver electric power
from the battery bank to an electric vehicle. A fuel tank is
positioned on the chassis to store liquid fuel and a fuel line
extends from the fuel tank to deliver the liquid fuel to an internal
combustion engine vehicle.
|
DAS 4 : Matériaux et composants pour
l'électronique
Trench edge termination in a GaN-based power
device
Abstract
The comfort of the modern society is somehow relied on production of
high voltage and high frequency devices. Being mature in performance,
wide bandgap semiconductors have replaced silicon-based devices.
However, wide bandgap semiconductor devices are plagued with their
premature breakdown, which owes to edge effects. Present work
demonstrates breakdown voltage enhancement in GaN based Schottky
diode using trench edge termination technique. Al2O3 was filled in
the trench of the structure. The atlas module of the Silvaco TCAD
software has been used to replicate the device structure. Numerous
models for ionization, recombination, impact ionization and mobility
have been used. The breakdown voltage of the device is estimated to
be 350 V due to the increase in the electric field at the edges.
Using trench termination, the edge electric field crowding has been
found spreading away from the edges of the device and in the Al2O3
layer. As a consequence, the trench edge terminated device has a
reverse breakdown voltage increased to 1800 V.
|
The Printed Electronics Roundtable, Part 3 -
PCB Design 007
[...] We recently conducted a roundtable
with a team of printed electronic circuit experts from companies that
run the gamut: John Lee and Kevin Miller of Insulectro, Mike Wagner
of Butler Technologies, Tom Bianchi of Eastprint, and John Voultos of
Sheldahl Flexibl [...]
|
CERAMIC FEEDTHROUGH ASSEMBLIES FOR
ELECTRONIC DEVICES WITH METAL HOUSINGS
A ceramic feedthrough assembly has a
feedthrough interface sleeve brazed to a ceramic feedthrough body and
a housing interface sleeve brazed to the feedthrough interface
sleeve. The housing interface sleeve is configured to be integrated
within an electronic device and welded to a metal housing to form a
hermetically sealed electronic device. The ceramic feedthrough has at
least one embedded electrical conductor extending from a first
location on the ceramic feedthrough body to a second location on the
ceramic feedthrough body. The feedthrough interface sleeve is
positioned around the ceramic feedthrough body between the first
location and the second location and brazed to the wrap-around
metallization. When the metal housing is welded to the housing
interface sleeve, the ceramic feedthrough assembly facilitates
connection to an electronic circuit hermetically sealed in the
electronic device with the metal housing.
|
DIELECTRIC MATERIALS BASED ON
OLIGOAMIDE-EXTENDED BISMALEIMIDES
The present invention relates to a new
class of dielectric polymer material, which is particularly suitable
for the manufacturing of electronic devices. The dielectric polymer
material is formed by reacting bismaleimide compounds and shows an
advantageous well-balanced profile of favorable material properties.
The bismaleimide compounds have an oligomeric structure with an
oligoamide extended repeating unit in the middle part of the molecule
and maleimide groups at each terminal end of the molecule. There is
further provided a method for forming said dielectric polymer
material. Beyond that, the present invention relates to the
dielectric polymer material and to an electronic device comprising
the same.
|
Circuits imprimables pouvant fonctionner sur
du tissu, du plastique et même des fruits - Crumpe
Vous souvenez-vous des décalcomanies
thermocollantes ? Tout ce que vous aviez […]
|
Printed Circuit Design & Fab Online Magazine
- Ventec and Taiyo: The One-Stop Shop for PCB Materials at
electronica 2022 - Printed Circuit Design & Fab
ELECTRONIC APPARATUS FOR STABLE ELECTRICAL
CONNECTION
An electronic apparatus according to
various embodiments comprises: a housing having a coupling region;
and a printed circuit board that has an overlap region overlapping
the coupling region and a non-overlap region not overlapping the
coupling region. The printed circuit board includes a plurality of
metal layers and a plurality of lines. The printed circuit board may
include a void section in which a portion of at least one metal layer
close to the coupling region among the plurality of metal layers is
not formed.
|
ELECTRIC POWER CONVERSION SYSTEM AND
ELECTRIC POWER CONVERSION DEVICE
A first electric power conversion device
(10) can convert electric power which has been generated by a power
generation device (4a) that uses renewable energy to generate
electric power into AC power at a predetermined voltage, and output
the AC power to a power reception point of an electric power system
(2). A second electric power conversion device (20) comprises a
control unit (25), an inverter (22), and a converter (21) capable of
charging and discharging a power storage unit (5). During an
interruption of power to the electric power system (2), an
independent output pathway of the second electric power conversion
device (20) is connected to an interconnection output pathway of the
first electric power conversion device (10). When electric power
input to the AC side of the inverter (22) has exceeded or is
predicted to exceed the maximum chargeable power of the power storage
unit (5), the control unit (25) performs control such that the output
of the first electric power conversion device (10) is suppressed or
blocked.
|
Webinar - RF and Ceramic Capacitors -
Electronic Products & Technology
Everything you need to know about RF and
Ceramic Capacitors Webinar takes a deep dive into what makes a radio
frequency capacitor unique and the roles
|
Crise des semi-conducteurs : Pénurie et
recherche de souveraineté technologique - Forbes France
POWER CONVERSION DEVICE
A power conversion device (100) includes
a control unit (30) having a first control mode for controlling a
circulating current (Icc) that is circulated among leg circuits (25)
of respective phases within a power converter (1) such that the
circulating current (Icc) includes an alternating current component
having a frequency that is an even number multiple, excluding
multiples of 3, of the frequency of the fundamental wave of the
alternating current. The control unit determines the active or
inactive states of the first control mode on the basis of the voltage
value of an energy accumulation element (12).
|
Advantages of Multilayer PCB -
GISuser.com
Today, printed circuit boards are found
in almost all modern electronic devices. Whether it is a simple
gadget like a toy or a complex one like a computer, they all use a
circuit board. However, there are different types of PCBs, including
single-layer, double-layer, and multilayer PCBs. Due to advancements
in technology, multilayer PCB are
|
High power efficiency nitrides
thermoelectric device
III-Nitrides, especially InGaN, are
promising for high-efficiency thermoelectric (TE) components
operating at high temperatures (HTs), playing a critical role in the
recovery of waste heat for sustainable energy development. However,
the performance of InGaN TE materials is limited by the high thermal
conductivity (k) and the conflict coupling between the power factor
(PF) and the k. Here, the previously unstudied two-dimensional
InGaN/GaN SL structured TE device with a high In composition of 31%
was developed and demonstrated to improve the TE figure of merit (ZT,
Z = PF/k) by reducing the k value without deteriorating the PF. The
Seebeck coefficient (S) exhibited a value of − 365 μV/K due to the
increased density of electron states near the Fermi level by the low
dimensional construction. Simultaneously, a relatively low k was
obtained as 7.7 W/m·K, benefitting from the alloying and SL
interface scattering effect of high energy phonons. Moreover,
enhancement of the Umklapp process by the space confinement effect
further lowers the k. Accordingly, a record ZT value of 0.089 at 300
K was achieved, which was better than previously reported values for
GaN-based TE film materials. This work provides a new material system
for improving the performance of nitride TE materials at HTs and
extends the fields of application in electricity harvesting from
waste heat. © 2022 Elsevier Ltd
PublicationName: Nano EnergyAffiliations: University of Chinese
Academy of Sciences / China
Institute of Semiconductors Chinese Academy of Sciences / China
Beijing Engineering Research Center for the 3rd Generation
Semiconductor Materials and Application / China
doi: 10.1016/j.nanoen.2022.107568
eIssn:
Volume: 101
IssueIdentifier:
|
Current source gate drivers for 3-phase VSI
operated in small-scale wind turbine systems
The paper is dedicated to the
improvement of efficiency of small-scale wind turbines’ (SSWT)
power electronic converters. An efficiency of the 3-phase voltage
source inverter that operates with low output voltage (<60 V) and
high grid-side input voltage (380 V) is investigated. Such a solution
allows skipping the intermediate DC/DC boost converter and thus
reducing conversion losses and complexity of a system. The inverter
has to oaperate with low duty cycles, which, in turn, demands
increasing of switching speed and thus requires application of
advanced transistors. To evaluate the switching performance, studies
were carried out with various types of switches, namely Si IGBT, Si
MOSFET, Cascode SiC JFET, SiC MOSFET using classic gate drivers and
proposed current source drivers. Detailed switching waveforms were
obtained using the double pulse method and analyzed for each type of
the switch. The switching speed was assessed and losses were
evaluated. Two types of transistors were selected for testing in the
VSI paired with an EMRAX 228 generator. Inverter efficiency data was
obtained and analyzed for two types of transistors/drivers and the
speed-torque curve applicable for a 3 kW turbine. It is shown that
the suggested solution improves the efficiency of SSWTs’ inverters.
© 2022 Elsevier Ltd
PublicationName: International Journal of Electrical Power and Energy
SystemsAffiliations: Hochschule Esslingen / Germany
doi: 10.1016/j.ijepes.2022.108160
eIssn:
Volume: 141
IssueIdentifier:
|
Design and Simulation of Broadband
Piezoelectric Energy Harvester with Multi-Cantilever
Piezoelectric bimorph cantilever is a
typical collecting structure for vibration energy, however it can not
adapt to the low frequency and random of vibration excitation in
natural environment. In this paper, the physical model of linear
vibration system of piezoelectric bimorph cantilever is analyzed,
where the piezoelectric energy harvester with multi-cantilever is
designed for it’s disadvantages. By increasing the cantilever beam
with different natural frequencies, the energy harvester has the
characteristics of broadband. By measuring the dynamic strain under
sweep excitation in the simulation of Comsol, Compare the output
voltage and working bandwidth between the piezoelectric bimorph
cantilever and the piezoelectric energy harvester with
multi-cantilever, verify the broadband characteristics of the latter.
This paper also designs the rectifier circuit, to convert alternating
current from the energy harvester into direct current.
|
Printed Circuit Design & Fab Online Magazine
- PCEA Announces Free Technical Sessions for PCB West 2022 - Printed
Circuit Design & Fab
PEACHTREE CITY, GA – Registrants for
the PCB West exhibition this fall will gain access to nine free
technical sessions, the Printed Circuit Engineering Association
announced today. The sessions take place on October 5 at the Santa
Clara Convention Center, and run the gamut from advanced packaging to
design, fabrication and assembly.
|
The Printed Electronics Roundtable, Part 3 -
PCB Design 007
[...] We recently conducted a roundtable
with a team of printed electronic circuit experts from companies that
run the gamut: John Lee and Kevin Miller of Insulectro, Mike Wagner
of Butler Technologies, Tom Bianchi of Eastprint, and John Voultos of
Sheldahl Flexibl [...]
|
Circuits imprimables pouvant fonctionner sur
du tissu, du plastique et même des fruits - Crumpe
Vous souvenez-vous des décalcomanies
thermocollantes ? Tout ce que vous aviez […]
|
Printed Circuit Design & Fab Online Magazine
- Ventec and Taiyo: The One-Stop Shop for PCB Materials at
electronica 2022 - Printed Circuit Design & Fab
Webinar - RF and Ceramic Capacitors -
Electronic Products & Technology
Everything you need to know about RF and
Ceramic Capacitors Webinar takes a deep dive into what makes a radio
frequency capacitor unique and the roles
|
Crise des semi-conducteurs : Pénurie et
recherche de souveraineté technologique - Forbes France
Advantages of Multilayer PCB -
GISuser.com
Today, printed circuit boards are found
in almost all modern electronic devices. Whether it is a simple
gadget like a toy or a complex one like a computer, they all use a
circuit board. However, there are different types of PCBs, including
single-layer, double-layer, and multilayer PCBs. Due to advancements
in technology, multilayer PCB are
|
Printed Circuit Design & Fab Online Magazine
- PCEA Announces Free Technical Sessions for PCB West 2022 - Printed
Circuit Design & Fab
PEACHTREE CITY, GA – Registrants for
the PCB West exhibition this fall will gain access to nine free
technical sessions, the Printed Circuit Engineering Association
announced today. The sessions take place on October 5 at the Santa
Clara Convention Center, and run the gamut from advanced packaging to
design, fabrication and assembly.
|
Trench edge termination in a GaN-based power
device
Abstract
The comfort of the modern society is somehow relied on production of
high voltage and high frequency devices. Being mature in performance,
wide bandgap semiconductors have replaced silicon-based devices.
However, wide bandgap semiconductor devices are plagued with their
premature breakdown, which owes to edge effects. Present work
demonstrates breakdown voltage enhancement in GaN based Schottky
diode using trench edge termination technique. Al2O3 was filled in
the trench of the structure. The atlas module of the Silvaco TCAD
software has been used to replicate the device structure. Numerous
models for ionization, recombination, impact ionization and mobility
have been used. The breakdown voltage of the device is estimated to
be 350 V due to the increase in the electric field at the edges.
Using trench termination, the edge electric field crowding has been
found spreading away from the edges of the device and in the Al2O3
layer. As a consequence, the trench edge terminated device has a
reverse breakdown voltage increased to 1800 V.
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High power efficiency nitrides
thermoelectric device
III-Nitrides, especially InGaN, are
promising for high-efficiency thermoelectric (TE) components
operating at high temperatures (HTs), playing a critical role in the
recovery of waste heat for sustainable energy development. However,
the performance of InGaN TE materials is limited by the high thermal
conductivity (k) and the conflict coupling between the power factor
(PF) and the k. Here, the previously unstudied two-dimensional
InGaN/GaN SL structured TE device with a high In composition of 31%
was developed and demonstrated to improve the TE figure of merit (ZT,
Z = PF/k) by reducing the k value without deteriorating the PF. The
Seebeck coefficient (S) exhibited a value of − 365 μV/K due to the
increased density of electron states near the Fermi level by the low
dimensional construction. Simultaneously, a relatively low k was
obtained as 7.7 W/m·K, benefitting from the alloying and SL
interface scattering effect of high energy phonons. Moreover,
enhancement of the Umklapp process by the space confinement effect
further lowers the k. Accordingly, a record ZT value of 0.089 at 300
K was achieved, which was better than previously reported values for
GaN-based TE film materials. This work provides a new material system
for improving the performance of nitride TE materials at HTs and
extends the fields of application in electricity harvesting from
waste heat. © 2022 Elsevier Ltd
PublicationName: Nano EnergyAffiliations: University of Chinese
Academy of Sciences / China
Institute of Semiconductors Chinese Academy of Sciences / China
Beijing Engineering Research Center for the 3rd Generation
Semiconductor Materials and Application / China
doi: 10.1016/j.nanoen.2022.107568
eIssn:
Volume: 101
IssueIdentifier:
|
Current source gate drivers for 3-phase VSI
operated in small-scale wind turbine systems
The paper is dedicated to the
improvement of efficiency of small-scale wind turbines’ (SSWT)
power electronic converters. An efficiency of the 3-phase voltage
source inverter that operates with low output voltage (<60 V) and
high grid-side input voltage (380 V) is investigated. Such a solution
allows skipping the intermediate DC/DC boost converter and thus
reducing conversion losses and complexity of a system. The inverter
has to oaperate with low duty cycles, which, in turn, demands
increasing of switching speed and thus requires application of
advanced transistors. To evaluate the switching performance, studies
were carried out with various types of switches, namely Si IGBT, Si
MOSFET, Cascode SiC JFET, SiC MOSFET using classic gate drivers and
proposed current source drivers. Detailed switching waveforms were
obtained using the double pulse method and analyzed for each type of
the switch. The switching speed was assessed and losses were
evaluated. Two types of transistors were selected for testing in the
VSI paired with an EMRAX 228 generator. Inverter efficiency data was
obtained and analyzed for two types of transistors/drivers and the
speed-torque curve applicable for a 3 kW turbine. It is shown that
the suggested solution improves the efficiency of SSWTs’ inverters.
© 2022 Elsevier Ltd
PublicationName: International Journal of Electrical Power and Energy
SystemsAffiliations: Hochschule Esslingen / Germany
doi: 10.1016/j.ijepes.2022.108160
eIssn:
Volume: 141
IssueIdentifier:
|
Design and Simulation of Broadband
Piezoelectric Energy Harvester with Multi-Cantilever
Piezoelectric bimorph cantilever is a
typical collecting structure for vibration energy, however it can not
adapt to the low frequency and random of vibration excitation in
natural environment. In this paper, the physical model of linear
vibration system of piezoelectric bimorph cantilever is analyzed,
where the piezoelectric energy harvester with multi-cantilever is
designed for it’s disadvantages. By increasing the cantilever beam
with different natural frequencies, the energy harvester has the
characteristics of broadband. By measuring the dynamic strain under
sweep excitation in the simulation of Comsol, Compare the output
voltage and working bandwidth between the piezoelectric bimorph
cantilever and the piezoelectric energy harvester with
multi-cantilever, verify the broadband characteristics of the latter.
This paper also designs the rectifier circuit, to convert alternating
current from the energy harvester into direct current.
|
CERAMIC FEEDTHROUGH ASSEMBLIES FOR
ELECTRONIC DEVICES WITH METAL HOUSINGS
A ceramic feedthrough assembly has a
feedthrough interface sleeve brazed to a ceramic feedthrough body and
a housing interface sleeve brazed to the feedthrough interface
sleeve. The housing interface sleeve is configured to be integrated
within an electronic device and welded to a metal housing to form a
hermetically sealed electronic device. The ceramic feedthrough has at
least one embedded electrical conductor extending from a first
location on the ceramic feedthrough body to a second location on the
ceramic feedthrough body. The feedthrough interface sleeve is
positioned around the ceramic feedthrough body between the first
location and the second location and brazed to the wrap-around
metallization. When the metal housing is welded to the housing
interface sleeve, the ceramic feedthrough assembly facilitates
connection to an electronic circuit hermetically sealed in the
electronic device with the metal housing.
|
DIELECTRIC MATERIALS BASED ON
OLIGOAMIDE-EXTENDED BISMALEIMIDES
The present invention relates to a new
class of dielectric polymer material, which is particularly suitable
for the manufacturing of electronic devices. The dielectric polymer
material is formed by reacting bismaleimide compounds and shows an
advantageous well-balanced profile of favorable material properties.
The bismaleimide compounds have an oligomeric structure with an
oligoamide extended repeating unit in the middle part of the molecule
and maleimide groups at each terminal end of the molecule. There is
further provided a method for forming said dielectric polymer
material. Beyond that, the present invention relates to the
dielectric polymer material and to an electronic device comprising
the same.
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ELECTRONIC APPARATUS FOR STABLE ELECTRICAL
CONNECTION
An electronic apparatus according to
various embodiments comprises: a housing having a coupling region;
and a printed circuit board that has an overlap region overlapping
the coupling region and a non-overlap region not overlapping the
coupling region. The printed circuit board includes a plurality of
metal layers and a plurality of lines. The printed circuit board may
include a void section in which a portion of at least one metal layer
close to the coupling region among the plurality of metal layers is
not formed.
|
ELECTRIC POWER CONVERSION SYSTEM AND
ELECTRIC POWER CONVERSION DEVICE
A first electric power conversion device
(10) can convert electric power which has been generated by a power
generation device (4a) that uses renewable energy to generate
electric power into AC power at a predetermined voltage, and output
the AC power to a power reception point of an electric power system
(2). A second electric power conversion device (20) comprises a
control unit (25), an inverter (22), and a converter (21) capable of
charging and discharging a power storage unit (5). During an
interruption of power to the electric power system (2), an
independent output pathway of the second electric power conversion
device (20) is connected to an interconnection output pathway of the
first electric power conversion device (10). When electric power
input to the AC side of the inverter (22) has exceeded or is
predicted to exceed the maximum chargeable power of the power storage
unit (5), the control unit (25) performs control such that the output
of the first electric power conversion device (10) is suppressed or
blocked.
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POWER CONVERSION DEVICE
A power conversion device (100) includes
a control unit (30) having a first control mode for controlling a
circulating current (Icc) that is circulated among leg circuits (25)
of respective phases within a power converter (1) such that the
circulating current (Icc) includes an alternating current component
having a frequency that is an even number multiple, excluding
multiples of 3, of the frequency of the fundamental wave of the
alternating current. The control unit determines the active or
inactive states of the first control mode on the basis of the voltage
value of an energy accumulation element (12).
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