Results 31 to 40 of about 665 (250)
Parameters design of voltage sharing components for the series multi‐break mechanical switch
IET Science, Measurement & Technology, 2022 Series multi‐break mechanical switch is one of the critical components of high‐voltage hybrid DC circuit breakers. However, due to the existence of distributed capacitance, the voltage distribution between the breaks is not balanced.
Daochun Huang +5 more
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CSEE Journal of Power and Energy Systems, 2019 The paper presents an economic hybrid circuit breaker for limiting and interrupting the faults in DC railways substations. For fast fault current interruption, the hybrid breaker incorporates high speed mechanical contacts actuated by power semiconductor
Saady Hasan
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Current Limiting Hybrid High Voltage DC Circuit Breaker With Reclosing Function Limiting
Journal of Applied Science and Engineering, 2022 DC circuit breaker is the core equipment for the safe operation of DC transmission system. A current limiting hybrid HVDC circuit breaker topology with reclosing function is proposed in this paper.
Baoge Zhang +4 more
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Fault Interruption Scheme for HVDC System Using SiC-MESFET and VCB Based Hybrid Circuit Breaker
IEEE Access, 2021 As high voltage DC power system is gaining popularity, power electronic switching devices are becoming increasingly advanced to overcome problems of timely fault isolation.
Waheed A. Khan +6 more
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IET Power Electronics, 2022 Hybrid switching technologies such as zero voltage switching (ZVS) and zero current switching (ZCS) are widely accepted to protect DC power systems from different kinds of faults.
Zhuangxian Jiang +5 more
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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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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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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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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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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
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