Results 21 to 30 of about 20,529 (288)

Hybrid HVDC circuit breaker with self-powered gate drives [PDF]

, 2016
The ever increasing electric power demand and the advent of renewable energy sources have revived the interest in high-voltage direct current (HVDC) multi-terminal networks.
Alan J. Watson, Bergstrom L., Billon V., C. Mark Johnson, Chao Ji, Colin Davidson, DLR, German Aerospace Center, Institute of Technical Thermodynamics, Section Systems Analysis and Technology Assessment, Emmanuel Amankwah, Flurscheim C.H., Francis B. Effah, Greenwood A., Greenwood A., Jon Clare, Rieder W., Rieder W., Rieder W., Twenties Project Deliverable 11.3   +16 more
core   +2 more sources

Topology assessment for 3 + 3 terminal offshore DC grid considering DC fault management [PDF]

, 2014
Peer ...
Jovcic, Dragan, Nguefeu, S., Taherbaneh, Mohsen, Taisne, J.P.   +3 more
core   +1 more source

Simulation of supersonic flow in high-voltage circuit breakers

IET Conference Proceedings, 2023
High-voltage circuit breakers (HVCB) are critical protection and control equipment in the electric transmission and distribution system. Analysis of the arc quenching process in the nozzle through modelling and simulation is a key stage in the development process of the HVCB.
Qiao, Yujiao, Matharage, Shanika, Wang, Zhongdong   +2 more
openaire   +2 more sources

Online monitoring and diagnosis of high voltage circuit breaker faults: feature extraction analysis of vibration signals

International Journal of Metrology and Quality Engineering, 2019
The development of power grid system not only increases voltage and capacity, but also increases power risk. This paper briefly introduces the feature extraction method of the vibration signal of high voltage circuit breaker and support vector machine ...
Li Long, Xiao Jianfeng, Wu Bin, Zhou Mengge, Wang Qian   +4 more
doaj   +1 more source

Experimental Test bed to De-Risk the Navy Advanced Development Model [PDF]

, 2017
This paper presents a reduced scale demonstration test-bed at the University of Texas’ Center for Electromechanics (UT-CEM) which is well equipped to support the development and assessment of the anticipated Navy Advanced Development Model (ADM).
Feng, X, Gattozzi, A, Hebner, R., Herbst, J, Pish, S, Strank, S, Wardell, D   +6 more
core   +1 more source

Research status and expectation of on-line monitoring technologies of mechanical characteristics of high-voltage vacuum circuit breaker

Gong-kuang zidonghua, 2016
Basic contents of on-line monitoring technologies of mechanical characteristics of high-voltage vacuum circuit breaker were introduced, and various kinds of methods of on-line monitoring were reviewed.
ZHAO Yang
doaj   +1 more source

Mechanism Analysis and Simulation Study of Closing Overvoltage Fault in EMU Circuit Breaker

Chengshi guidao jiaotong yanjiu
Objective The overvoltage caused by circuit breaker closing will aggravate the insulation aging of high voltage equipment when EMU (electric multiple units)passes neutral section.
ZHANG Mingrui, ZHANG Ningchuan, LIU Zhengwei   +2 more
doaj   +1 more source

Experimental Modeling of Forward Recovery Characteristics of IGBT for DC Circuit Breaker

Zhongguo dianli, 2021
DC circuit breaker is the main means to clear the faults in VSC-HVDC power grid. Before action of the hybrid DC circuit breaker, the IGBT in the transfer branch is in a state of zero voltage and zero current.
Hong SHEN, Cuizhi TONG, Zhonghao DONGYE, Lei QI, Qian WANG   +4 more
doaj   +1 more source

Simulation study of integrated‐gate‐commutated‐thyristor based superconducting hybrid direct current circuit breaker

High Voltage, 2023
With the development of a distributed generation, direct current (DC) load and energy‐storage equipment, voltage‐source‐converter‐based medium‐voltage DC systems (VSC‐MVDC) have attracted more attention due to its low power consumption, high reliability,
Muhammad Junaid, Wenqing Yu, Shuzhi Cao, Xiaolong Yu, Dongsheng Yu, Weilin Zong, Jianhua Wang   +6 more
doaj   +1 more source

Analysis of SF6 contact based on QPSO-SVR

Energy Reports, 2023
In the condition evaluation of the high-voltage SF6 circuit breaker, contact resistance and mass loss have a significant impact on the arc contact. To that end, this paper proposes a method based on quantum particle swarm optimization and support vector ...
Jianwei Bai, Peijun Cong, Hui Zhang, Shixun Sun, Bowen Zhang, Yong Wang, Liang Wang   +6 more
doaj   +1 more source