Calculation Method of Short-Circuit Impulse Current in an Inter-Phase Power Controller

doi:10.11930/j.issn.1004-9649.2014.5.83.4

Abstract

Abstract: In recent years, intensive grid developments led to short-circuit current overproof increasingly. Therefore, interphase power controllers(IPCs) are receiving attention due to its characteristics of limiting short-circuit current. The system with short-circuit faults, which also contains IPCs, was analyzed by the operation circuit method in this paper, and the detailed expressions of IPC branches’ currents were also conducted. Based on the expressions, the analysis of the influence factors on the short-circuit impulse currents of IPCs as well as the methods of calculation were accomplished. Finally, an equivalent system of 500 kV, containing IPCs, was taken as an example to get the electromagnetic transient simulation results, which prove the feasibility of the proposed method. This research can provide a reference for the selection of interphase power controlles.

Key words: interphase power controller, short-circuit impulse current, operation circuit method, electromagnetic transient simulation

CLC Number:

TM744

CUI Guang-sheng, SHEN Xu-hui, CHEN Xiang, ZHENG Chao, LEI Zheng. Calculation Method of Short-Circuit Impulse Current in an Inter-Phase Power Controller[J]. Electric Power, 2014, 47(5): 83-87.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2014.5.83.4

https://www.electricpower.com.cn/EN/Y2014/V47/I5/83

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