中压配电线路故障在线监测与识别

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Abstract An online monitoring and identification system for medium voltage (MV) distribution line fault is developed to avoid the difficulty to exclude fault caused by long distance and wide distribution of MV distribution line. The system consists of hierarchical monitoring devices and PC software. The communication architecture is based on a communication method composed of RS-485, GPRS and Ethernet. Monitoring devices acquire and upload the fault waveform of line. PC software displays fault waveform and recognition result obtained by calling the fault type identification algorithm based on singular value decomposition (SVD) and multilevel support vector machine (SVM). The experimental results show that the system is stable and effective to monitor and identify line faults. In addition, the accuracy rate of proposed algorithm can reach 94%.

Key words： MV distribution network line fault online monitoring fault type identification

Published: 06 December 2017

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	Articles by authors
	Zhang Bihui
	Yang Fan
	Liu Jian
	Guo Moufa

Cite this article:

Zhang Bihui,Yang Fan,Liu Jian等. Online Monitoring and Identification of MV Distribution Line Fault[J]. Electrical Engineering, 2017, 18(11): 80-86.

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http://dqjs.cesmedia.cn/EN/Y2017/V18/I11/80

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