Studies on the active SISFCL and its impacton the distance protection of the EHVtransmission line

Chao Li; Bin Li; Fengrui Guo; Jianzhao Geng; Xiuchang Zhang; Tim Coombs

Citation:Chao Li,Bin Li,Fengrui Guo,等.Studies on the active SISFCL and its impacton the distance protection of the EHVtransmission line[J].Protection and Control of Modern Power Systems,2016,V1(2):164-169[Copy]

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Studies on the active SISFCL and its impacton the distance protection of the EHVtransmission line
Chao Li,Bin Li,Fengrui Guo,Jianzhao Geng,Xiuchang Zhang,Tim Coombs
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Abstract:

The active saturated iron-core superconductive fault current limiter (SISFCL) is a good choice to decrease fault current. This paper introduced the principles and impedance characteristic of the active SISFCL. Then, it shows the current-limiting effects of the SISFCL. Besides, the impact of the active SISFCL on the distance protection of the EHV transmission line is evaluated. Based on that, the coordination scheme of the distance protections is proposed. A 500 kV double-circuit transmission system with SISFCLs is simulated by Electro-Magnetic Transients Program including DC (EMTDC). Simulation tests demonstrate the correctness and validity of theoretical analyses.

Key words: Superconductive Fault current limiter (SFCL), Saturated iron core, Distance protection, Current-limiting effects

DOI：10.1186/s41601-016-0028-7

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