适用于换流器区保护定值校验的直流系统故障时刻选取方法

doi:10.19595/j.cnki.1000-6753.tces.170103

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Abstract The correctness of converter protection setting values can be influenced by the time of fault occurrence. The method of selecting the fault time based on natural periods, which is commonly utilized in engineering practice, has the disadvantage of being sensitive to the time interval. Therefore, this paper proposed a method to choose the time of fault occurrence for converter protection setting value verification, from the point of transient process of electrical variables. Concrete steps to implement the method, and the special time intervals that should be noticed, are given in the paper. It's demonstrated by the simulation results that without compromising the accuracy, workload can be significantly reduced with the proposed method.

Key words： Relay setting value verification fault time natural interval time periods mergence subdivisional periods

Received: 23 January 2017 Published: 12 April 2018

PACS:

TM772

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	Zhu Jia
	Li Yinhong
	Duan Xianzhong

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Zhu Jia,Li Yinhong,Duan Xianzhong. A Method to Choose Fault Time for Relay Setting Value Verification of Converter Protection in HVDC Systems[J]. Transactions of China Electrotechnical Society, 2018, 33(7): 1531-1541.

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https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.170103 OR https://dgjsxb.ces-transaction.com/EN/Y2018/V33/I7/1531

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