Transactions of China Electrotechnical Society  2019, Vol. 34 Issue (20): 4196-4207    DOI: 10.19595/j.cnki.1000-6753.tces.L80773
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Superconducting Fault Current Limiting DC Current Interrupting Technology
Wang Jianhua, Xiang Bin, Yang Kun, Gao Lei, Liu Zhiyuan
State Key Laboratory of Electrical Insulation and Power Equipment Xi’an Jiaotong University Xi’an 710049 China

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Abstract  In the flexible DC system, ship DC system and rail transit system, the amplitude and rise rate of the short-circuit fault current are very high. It is difficult for the existing DC circuit breaker to cut off the fault quickly and reliably. Using the high temperature superconducting tape with fast current limiting characteristic, the superconducting current limiting DC switching can react within 1 ms automatically. Then it can limit the fault current to a very low level, which greatly reduces the difficulty and burden of the DC circuit breaker. In this paper, the characteristics of the superconducting current limiter were introduced first. Then three kinds of the superconducting current limiting DC switching technologies were analyzed: superconducting current limiting passive oscillation DC circuit breaker, superconducting current limiting active current injection DC circuit breaker, and superconducting current limiting hybrid DC circuit breaker. The interruption process of 200kV/30kA superconducting current limiting passive oscillation DC circuit breaker was simulated. The 10kV/10kA superconducting current limiting active current injection DC circuit breaker interruption test and the 55V/55A superconducting current limiting hybrid DC circuit breaker interruption test were completed.
Key wordsSuperconducting fault current limiter      DC interruption      passive oscillation      active current injection      hybrid interruption     
Received: 10 July 2018      Published: 30 October 2019
PACS: TM561  
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Wang Jianhua
Xiang Bin
Yang Kun
Gao Lei
Liu Zhiyuan
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Wang Jianhua,Xiang Bin,Yang Kun等. Superconducting Fault Current Limiting DC Current Interrupting Technology[J]. Transactions of China Electrotechnical Society, 2019, 34(20): 4196-4207.
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