Results 21 to 30 of about 18,999,023 (95)
IET Power Electronics, Volume 15, Issue 5, Page 412-421, 8 April 2022., 2022 Abstract Phase sequence exchange (PSE) is an emerging emergency control method for power systems. However, PSE will generate impulse current and voltage. In this research, to suppress the impulse of PSE, a phase control method for zero‐current opening and equal‐voltage closing is adopted, and verified via both physics and experiments.
Yifan Li +4 more
wiley +1 more source
Novel power electronic device for power angle stability control
The Journal of Engineering, Volume 2022, Issue 4, Page 447-451, April 2022., 2022 Abstract This letter proposes a novel phase sequence exchange (PSE) device. When the generator loses synchronization and the power angle gradually increases, the primary side of the contact line is disconnected and quickly connected in a staggered phase using the power device with fast breaking characteristics.
Hui Li +3 more
wiley +1 more source
Machine Learning Enabled Cluster Grouping of Varistors in Parallel-Structured DC Circuit Breakers
IEEE Open Journal of Power Electronics, 2023 This letter presents the first ever trial of machine learning enabled cluster grouping of varistors for DC circuit breakers (DCCBs). It reveals that the manufacturing discrepancy of varistors is a main challenge in their parallel connection. The proposed
Shuyan Zhao +5 more
doaj +1 more source
Overview of grounding schemes for solid‐state transformers in distribution networks
IET Generation, Transmission &Distribution, Volume 15, Issue 22, Page 3081-3099, November 2021., 2021 Abstract Proposed to be the critical enabling component for future distribution networks, solid‐state transformers (SSTs) have drawn much attention lately. They have a massive potential to help reduce size and weight, improve efficiency, integrate microgrids, renewables and energy storages in distribution systems, and can fulfil multiple grid functions
Jiajie Zang +3 more
wiley +1 more source
Design criteria of solid‐state circuit breaker for low‐voltage microgrids
IET Power Electronics, Volume 14, Issue 7, Page 1284-1299, 20 May 2021., 2021 Abstract Solid‐state circuit breakers (SSCB) show great promise to become the key element in the protection of low‐voltage direct current microgrids. SSCBs operate in the microsecond range and employ semi‐conductor devices that have strict safe operation area limits.
Pavel Purgat +4 more
wiley +1 more source
Design of a snubber circuit for low voltage DC solid‐state circuit breakers
IET Power Electronics, Volume 14, Issue 6, Page 1111-1120, 6 May 2021., 2021 Abstract Solid‐state circuit breakers (SSCBs) are designed to interrupt fault currents typically several orders faster than its electromechanical counterparts. However, such an ultrafast switching operation would produce a dangerous overvoltage which might cause damages to SSCBs and other circuit elements in the system.
Zhongying Wang +1 more
wiley +1 more source
Evaluation Tests of Metal Oxide Varistors for DC Circuit Breakers
IEEE Open Access Journal of Power and Energy, 2022 With emerging technologies and products in power semiconductors and ultrafast mechanical switches, direct-current circuit breakers (DCCBs) have been developing rapidly.
Chunmeng Xu +7 more
doaj +1 more source
IET Generation, Transmission &Distribution, Volume 15, Issue 1, Page 45-55, January 2021., 2021 Abstract The high‐surety power supply systems are gaining great attention to enhance the reliability of uninterruptable power supplies. A high‐resistance fault along a high‐surety power supply feeder results in a low fault current, making the conventional high‐surety power supply protection strategy ineffective.
Roja Rouhani +2 more
wiley +1 more source
Research on Safety Technology for High-Speed Interruption for Mining Flameproof Movable Substation
Energies, 2020 Due to the working condition of low-voltage cabling from the mining flameproof movable substation to the loads of the mining face being poor, it is easy to cause various external mechanical damages to the cable sheaths.
Yanwen Wang +3 more
doaj +1 more source
Monolithically Integrated Solid-State-Circuit-Breaker for High Power Applications
, 2017 In this study, the basic device features of a novel monolithically integrated solid-state-circuit-breaker (MI-SSCB) are demonstrated and analyzed using numerical simulations.
Anton J. Bauer +3 more
core +2 more sources