基于微型同步相量单元数据的配电线路故障测距方法

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Abstract In order to accurately determine the location of the short circuit fault point of the distribution line, this paper establishes a mathematical model for distribution line parameter identification and fault location based on the consideration of phase-to-phase coupling, three-phase unbalance, and ground capacitance factors, and proposes a Combined with adaptive genetic algorithm, first parameter identification and then fault location algorithm. Carry out simulation analysis in PSCAD/EMTDC, analyze and compare the error of parameter identification and its impact on the final ranging, analyze the impact of different line types, short-circuit fault types, transition resistance, fault initial angle, etc. on the algorithm and compare it with traditional ranging algorithms In comparison, the ranging results prove that the algorithm proposed in this paper has higher ranging accuracy and effectively overcomes the shortcomings of the existing ranging method for large cable line ranging errors.

Key words： distribution line short-circuit fault parameter identification fault location two- terminal impedance method adaptive genetic algorithm

Received: 08 April 2020

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	Articles by authors
	Liu Shuxin
	Zhuo Yu
	Li Jin
	Tian Ersheng
	Liu Yang

Cite this article:

Liu Shuxin,Zhuo Yu,Li Jin等. Distribution line fault location method based on micro-synchronous phasor unit data[J]. Electrical Engineering, 2020, 21(10): 63-70.

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http://dqjs.cesmedia.cn/EN/Y2020/V21/I10/63

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