Results 21 to 30 of about 129,899 (319)

A novel DC‐link voltage synchronous control with enhanced inertial capability for full‐scale power conversion wind turbine generators

open access: yesIET Renewable Power Generation
The new power system is characterized by high penetration of renewable energy sources and a high proportion of power electronics (namely, double‐high).
Yao Qin   +5 more
doaj   +1 more source

Recent Stirling Conversion Technology Developments and Operational Measurements [PDF]

open access: yes, 2009
Under contract to the Department of Energy (DOE), Lockheed Martin Space Systems Company (LMSSC) has been developing the Advanced Stirling Radioisotope Generator (ASRG).
Oriti, Salvatore, Schifer, Nicholas
core   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

A Novel Bi-directional AC/DC - DC/AC Wireless Power Transfer System for Grid Support Applications

open access: yesApplied Power Electronics Conference, 2021
The severity of the economic impact caused by grid outages has been the driving factor for creating innovative solutions that increases interest for the deployment of distributed energy resources to reduce the impact of grid outages.
Erdem Asa   +4 more
semanticscholar   +1 more source

Low‐voltage DC building distribution and utilization system and its implementation in China southern grid

open access: yesIET Renewable Power Generation
The demand‐side DC electricity‐using equipment and newly integrated renewables are driving the transformation of power distribution and utilization mode. The building system based on DC technology is emerging as a promising option.
Peiqian Guo   +10 more
doaj   +1 more source

Phase Change Material‐Driven Tunable Metasurface for Adaptive Terahertz Sensing and Communication in 6G Perceptive Networks

open access: yesAdvanced Functional Materials, EarlyView.
This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To   +5 more
wiley   +1 more source

Stability enhancement of bi‐directional voltage source converters in modern power systems

open access: yesIET Generation, Transmission & Distribution
In future modern power systems, reliability and resilience could be an extreme challenge caused by the stability issues of the bidirectional power converters (BPCs).
Mohamad Amin Ghasemi   +2 more
doaj   +1 more source

Exploiting buck–boost duality in dual active bridge modular multilevel converters to achieve high DC step ratios

open access: yesHigh Voltage, 2021
A previously unidentified duality between buck and boost configured dc‐ac modular multilevel converters (MMCs) is firstly revealed. Armed with this insight, a new dual‐active‐bridge (DAB)‐MMC is proposed for high‐voltage dc (HVDC)‐to‐medium‐voltage dc ...
Sunny Kung   +5 more
doaj   +1 more source

Coupled Ferroelectric–Photoelectrochemical in Water Reduction Over BiFeO3 Thin Film Heterostructure Modulated by Rare‐Earth Doping

open access: yesAdvanced Functional Materials, EarlyView.
Gd‐doped BFO (BGFO) exhibits a ∼2‐order reduction in leakage current owing to its lowest content of oxygen vacancies. This leads to a ∼2.5‐fold increase in remnant polarization. These improvements in BGFO effectively boost charge separation and transportation, resulting in the greatest incident photon‐to‐current efficiency of 12.9 ± 0.73% and a ∼1.5 ...
Ming‐Wei Chu   +7 more
wiley   +1 more source

Design and implementation of a full analogue gate driver for current compensation of paralleled SiC‐MOSFETs

open access: yesIET Power Electronics
Silicon carbide MOSFETs have current ratings that are not sufficiently high to be used in high‐power converters. It is necessary to connect several MOSFETs in parallel in order to increase current capabilities.
Adel Rezaeian   +2 more
doaj   +1 more source

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