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T型线路的行波精确故障测距新方法
引用本文:张峰,梁军,杜涛,张利,贠志皓.T型线路的行波精确故障测距新方法[J].高电压技术,2009,35(3):527-532.
作者姓名:张峰  梁军  杜涛  张利  贠志皓
作者单位:张峰,梁军,张利,贠志皓,ZHANG Feng,LIANG Jun,ZHANG Li,YUN Zhi-hao(山东大学电气工程学院,济南,250061);杜涛,DU Tao(山东山大电力技术有限公司,济南,250061)  
摘    要:在行波故障测距原理基础上,对T型线路的行波故障测距方法进行了研究,提出了综合利用T型线路的三端测量数据进行故障测距的思路,并依此提出了故障分支判别的新判据和故障点测距的新方法。分支判别判据考虑了实际测距误差因素对分支误判情况的影响,确保分支判别的有效性;故障点的测距过程中充分利用T型线路的三端测量数据,提出了利用三端数据进行故障测距的新方法。同时,测距表达式中消去了波速不确定性对测距结果的影响,并且一定程度上消除了线路弧垂对测距结果带来的误差。ATP/EMTP仿真结果表明,所提方法可以对T型线路进行精确的故障分支判别和故障点的测距。

关 键 词:行波  T型线路  三端数据  分支判别  故障测距  波速

Accurate Fault Location Algorithm Based on Traveling Waves for Teed-circuits
ZHANG Feng,LIANG Jun,DU Tao,ZHANG Li,YUN Zhi-hao.Accurate Fault Location Algorithm Based on Traveling Waves for Teed-circuits[J].High Voltage Engineering,2009,35(3):527-532.
Authors:ZHANG Feng  LIANG Jun  DU Tao  ZHANG Li  YUN Zhi-hao
Affiliation:1. School of Electrical Engineerring;Shandong University;Jinan 250061;China;2. Shandong University Electric Power Technology Co.;Ltd;China
Abstract:According to the basic theory of fault location based on traveling waves, the methods of fault line branch selecting and fault locating for Teed-Circuits are studied. And an idea based on comprehensive utilization of the three terminal measurement data of Teed-Circuits is put forward, then according to this thought, a new algorithm for branch selecting and fault locating is proposed. The algorithm makes best of the three terminal parameters of the Teed-Circuits, which insure the correctness of fault line se...
Keywords:traveling wave  Teed-circuit  three terminal parameters  fault line selection  fault location  wave speed  
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