Single terminal fault location to single-line-to-ground fault in T transmission line based on sequenced time session data

被引：0

作者：

Wang B. ^{[1
]}

Lu Y. ^{[1
]}

机构：

[1] State Key Lab of Control and Simulation of Power Systems and Generation Equipments, Department of Electrical Engineering, Tsinghua University, Haidian District, Beijing

来源：

| 1600年 / Chinese Society for Electrical Engineering卷 / 36期

基金：

中国国家自然科学基金;

关键词：

Fault location; Sequenced time section fault data; Single line to ground fault; Single pole trip; T connection transmission line;

D O I：

10.13334/j.0258-8013.pcsee.2016.10.004

中图分类号：

学科分类号：

摘要：

The accurate fault location in T connection transmission line is pretty difficult in real applications due to the unavailability of synchronized three-terminal fault data. In response to this problem, a novel single-terminal fault location algorithm was proposed with only using the data at the last-tripping power source side. It is based on the fact that, the topology of transmission line keeps constant in the sequenced time-sections produced by the single-phase circuit breaker tripping separately at three ends. The detailed description forums of transmission line topology in sequenced time-sections were presented, and a resolving algorithm based on Levenberg-Marquardt method was proposed. The algorithm can simultaneously resolve out the accurate fault distance and the value of fault resistance. High accuracy of the algorithm was proved with different fault simulation cases. The most valuable theory innovation can also be extended to the practical applications in transmission and distribution system with renewable power source connections, but several key technical problems should be further researched in following. © 2016 Chin. Soc. for Elec. Eng.

引用

页码：2611 / 2618

页数：7

共 15 条

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