基于时域微分的地铁直流牵引系统故障定位

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Abstract Developing fast and accurate fault location methods for DC railway traction power supply system is an urgent problem.This paper deeply studies the structure,parameters,operation,and fault characteristics of the metro DC traction system,and proposes a time domain differential equation method of double side based on the least square method,which will not be affected by transition resistance.Considering that there are no communication conditions between the subway substations,an improved single-end fault location algorithm based on the genetic algorithm has been put forward.The fault location is found through constructing the optimization function.Further,the models based on an actual subway are built,and the fault location algorithms are analyzed through fault simulations.The results demonstrate the feasibility.Finally,by using the measured data for related comparison,the method proves to be practical and accurate.

Key words： DC traction system fault location differential equation least square method genetic algorithm

Received: 23 May 2014 Published: 25 February 2016

PACS:

TM922

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	Articles by authors
	He Jinghan
	Meng Xin
	Song Xiaoming
	Li Changcheng
	Wang Xiaojun

Cite this article:

He Jinghan,Meng Xin,Song Xiaoming等. Fault Location Research of DC Railway Traction System Based on Time-domain Differential[J]. Transactions of China Electrotechnical Society, 2016, 31(3): 164-170.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I3/164

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