Results 41 to 50 of about 8,461 (290)
Investigation of Impulse Aging of Energy-Absorption Elements for Hybrid DC Circuit Breakers
Applied Sciences, 2023 The state of the energy-absorption branch MOV in the hybrid DC circuit breaker (DCCB) has a very important impact on the short fault breaking operation of the circuit breaker.
Xinyi Wang +6 more
doaj +1 more source
A control method of fault current in MT-HVDC grid based on current limiter and circuit breaker [PDF]
Archives of Electrical Engineering, 2021 In order to realize selective isolation of fault lines in multi-terminal high voltage DC (MT-HVDC) grids, it is necessary to ensure that the sound lines can still transmit power normally after the grounding fault occurs in a DC power network.
Sihua Wang, Lei Zhao, Lijun Zhou
doaj +1 more source
DC fault isolation study of bidirectional dual active bridge DC/DC converter for DC transmission grid application [PDF]
, 2015 Fast isolation and detection of DC faults is currently a limiting factor in high power DC transmission grid development. Recent research has shown that the role of DC/DC converters is becoming increasingly important in solving various DC grid challenges ...
Aboushady, Ahmed A. +2 more
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DC protection of a muti-terminal HVDC network featuring offshore wind farms [PDF]
, 1949 A protection scheme for DC faults has been designed for a multi-terminal HVDC network used to transfer energy from three large offshore wind farms to shore.
Parker, Max +2 more
core +3 more sources
Zhongguo dianli, 2021 For the voltage source converter based high voltage direct current (VSC-HVDC) station equipped with hybrid DC breakers, the DC circuit breaker has fast speed for breaking fault current and short time for internal commutation.
Meng BAO +5 more
doaj +1 more source
Cascaded commutation circuit for a hybrid DC breaker with dynamic control on fault current and DC breaker voltage [PDF]
, 2017 This paper proposed a cascaded commutation circuit based on current commutation approach for low-to-medium voltage DC fault current interruption, without snubber circuits, which slows the fault current di/dt prior to current-zero and the rate of rise of ...
Ding, Xiao +6 more
core +1 more source
机车电传动, 2022 A hybrid DC circuit breaker is the core protection equipment of a DC system, and its key parameters are critical to the products design and application, so the research on the influencing factors to such key parameters is of great significance to the ...
LUO Wenguang +4 more
doaj
System configuration, fault detection, location, isolation and restoration: a review on LVDC Microgrid protections [PDF]
, 2019 Low voltage direct current (LVDC) distribution has gained the significant interest of research due to the advancements in power conversion technologies. However, the use of converters has given rise to several technical issues regarding their protections
Bououden +11 more
core +1 more source
Energies, 2021 In this paper, direct current (DC) fault current limiting and interrupting operation of hybrid DC circuit breaker (DCCB) using double quench, which consists of DCCB, a series resonance circuit, power electronic switch, surge arrestor, two separated ...
Sang-Jae Choi +3 more
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Key stress extraction and equivalent test method for hybrid DC circuit breaker
Global Energy Interconnection, 2018 Firstly, relevant stress properties of millisecond level breaking process and microsecond level commutation process of hybrid HVDC circuit breaker are studied in detail on the basis of the analysis for the application environment and topological ...
Chong Gao +4 more
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