Results 41 to 50 of about 10,346 (264)
Research on DC power flow controllable multi-port DC circuit breaker
Energy Reports, 2022 For the problem of fault isolation and power flow control in DC grid, this paper proposes a DC power flow controllable multi-port DC circuit breaker. Under the normal operation, this breaker has the function of DC power flow regulation, which is used to ...
Feng Xu +5 more
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A new hybrid DC circuit breaker topology
IOP Conference Series: Earth and Environmental Science, 2018 Being advantageous for long-distance power transmission and new energy connection, DC system has wide range of applications in many scenarios. As the capacity of DC power grids increases, the fault current is more difficult to interrupt. And the DC circuit breaker which is very important for protecting DC grid attracts more and more attention of ...
C C Zhu +5 more
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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 +4 more
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Hybrid Z-Source Circuit Breaker with Thomson Coil for MVDC
Energies, 2023 Hybrid circuit breakers are the most promising circuit breakers among DC circuit breakers. Conventional hybrid circuit breakers complete fault current isolation by converting current to IGBT when fault current occurs.
Hyun-Seung Lee +3 more
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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
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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
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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
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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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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A novel current-limiting hybrid DC breaker based on thyristors
Energy Reports, 2023 Since the DC current has no zero-crossing in high-voltage and large-capacity DC scenarios, and the low line impedance results in a large growth rate of fault current, the breaking requirements of DC circuit breakers (DCCB) are further increased.
Xinchao Yu +4 more
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