输电线路串入行波定位技术仿真研究  

Simulation Study on Series Traveling Wave Location Technology for Transmission Lines

作　　者：林盾 赵海龙 LIN Dun;ZHAO Hailong(Electric Power Research Institute,Hainan Power Grid Co.,Ltd.,Haikou 570105,China)

机构地区：[1]海南电网有限责任公司电力科学研究院

出　　处：《电工技术》2020年第3期4-6,共3页Electric Engineering

摘　　要：以ATP-EMTP为研究工具,搭建了包含进线段线路、电晕及整个变电站的综合仿真模型,对故障行波沿线路经变电站串入邻近线路的特性进行了分析,研究了变电站运行方式、出线条数、变电站母线长度、初始故障行波幅值等对串入行波特征的影响。研究结果表明,当起始故障行波幅值大于25 A,且变电站规模较为接近时,可利用邻近线路故障行波实现故障线路的故障精确定位。In this paper,ATP-EMTP is used as the research tool to build a comprehensive simulation model including the incoming line,corona and the whole substation.The characteristics of fault traveling wave passing through substation in series with adjacent lines are analyzed.The influences of operation mode of substation,loop number of outgoing lines,bus length of substation and initial fault traveling wave amplitude on the characteristics of series traveling wave are studied.The results show that when the amplitude of the initial fault traveling waveis greater than 25 A and the substation scale is relatively close,the fault traveling wave of the adjacent line can be used to achieve the accurate fault location of the fault line.

关 键 词：行波测距 局部型 单线路 串入行波 运行方式 

分 类 号：TM85[电气工程—高电压与绝缘技术]