A Novel Method for Double Terminal Traveling Wave Fault Location Based on Simple Communication

doi:10.11930/j.issn.1004-9649.201605051

Abstract

Abstract: Improving the reliability and precision is of vital importance for traveling wave fault location. After a brief comparison of the pros and cons of single terminal method and double terminal method, it comes to the conclusion that even though the traditional double terminal method have higher precision, its reliability is highly dependent on the time dissemination system. Therefore, by taking advantage of the connection channel at the ends of the lines where simple communication can be performed, a pulse signal is sent immediately to the other terminal as soon as the initial wave-front is detected. Then using high precision timer together with wave velocity, the fault location can be calculated without time synchronization at both ends. Finally through the analysis of the existing hardware manufacturing technology, it is believed that this method will have higher accuracy.

Key words: simple communication, traveling wave location, double terminal method, time synchronization, pulse

CLC Number:

LI Zhenxing, WU Liqun, TAN Hong, CHENG Yixing, LI Zhenhua. A Novel Method for Double Terminal Traveling Wave Fault Location Based on Simple Communication[J]. Electric Power, 2018, 51(3): 74-79.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201605051

https://www.electricpower.com.cn/EN/Y2018/V51/I3/74

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