Results 11 to 20 of about 200 (126)
Topology and control of a novel hybrid HVDC circuit breaker with self-powered capability
Energy Reports, 2022 Power supply for IGBT drive circuit of HVDC circuit breaker is a great challenge in practical engineering. At present, most of the HVDC circuit breakers rely on external power sources. This paper proposes a self-powered hybrid HVDC circuit breaker.
Huangqing Xiao
exaly +3 more sources
Optimal circuit breaker allocation strategy in DC transmission-connected systems [PDF]
Scientific ReportsThe purpose of this study is to provide data for the best possible circuit breaker allocation in power grids with HVDC transmission while taking circuit breaker failure into account. The lack of a suitable selection of HVDC circuit breakers is one of the
Beopsoo Kim, Insu Kim
doaj +2 more sources
New multi-injection commutation topology for circuit breakers of HVDC transmission lines [PDF]
Scientific ReportsPower-sharing between countries has an essential effect on increasing the power system’s reliability and allowing a resilient energy market. High voltage direct current (HVDC) transmission systems are preferable for long-distance transmission to decrease
Fady Wadie, Mahmoud Elsisi, Tamer Eliyan
doaj +2 more sources
Technical Assessment of Hybrid HVDC Circuit Breaker Components under M-HVDC Faults
Energies, 2021 One of the technical challenges that needs to be addressed for the future of the multi-terminal high voltage direct current (M-HVDC) grid is DC fault isolation. In this regard, HVDC circuit breakers (DCCBs), particularly hybrid circuit breakers (H-DCCBs),
Nebras Sobahi, Ali Raza, Zain Yousaf
exaly +3 more sources
Circuit Breaker Failure Protection Strategy for HVDC Grids
Energies, 2021 HVDC grids demand the fast and reliable operation of the protection system. The failure of any protection element should initialize a backup protection almost immediately in order to assure the system’s stability.
Maria José Pérez Molina +2 more
exaly +3 more sources
A Current-Commutation DC Circuit Breaker with Adaptive Reclosing Capability [PDF]
E3S Web of Conferences, 2021 DC faults are critical events in a flexible high-voltage dc (HVDC) grid. Thus, ensuring that the power system returns to normal operation rapidly and reliably after fault isolation is very important. This requires a HVDC breaker. In overhead line systems
Jiang Chunbing, Zhao Chengyong
doaj +1 more source
Design of ± 535 kV hybrid high voltage direct current (HVDC) circuit breaker
IET Generation, Transmission & Distribution, 2022 This paper proposes a ± 535 kV hybrid high voltage direct current (HVDC) circuit breaker. In this paper, the interruption processes of the main branch, transferring branch, and MOV (metal oxide varistors) branch are studied by PSCAD/EMTDC computer ...
Chenyang Liu +4 more
doaj +1 more source
HVdc Circuit Breakers: Prospects and Challenges
Applied Sciences, 2021 The integration of offshore wind farms has revitalized the interest in multi–terminal high voltage direct current (M–HVdc) transmission grids. HVdc breakers’ importance has increased as M–HVdc grids are now a commercial truth.
Ali Raza +6 more
doaj +1 more source
High‐voltage direct current fault current interruption: A technology review
High Voltage, 2021 This review paper describes fault current interruption principles and various high‐voltage direct currrent (HVDC) circuit breaker technologies. First, fundamentals of HVDC fault current interruption and a generic set of requirements of HVDC circuit ...
Rene P. P. Smeets, Nadew A. Belda
doaj +1 more source
A Self-commutated HVDC Circuit Breaker Based on Forced Zero Crossing Technology
Zhongguo dianli, 2021 In order to improve the breaking capacity of Hybrid DC circuit breaker and reduce the harm of DC short circuit fault to the system, we proposed a self-commutated HVDC circuit breaker based on forced zero crossing technology.
Guoqing LI +3 more
doaj +1 more source