基于平行双回线单端实时数据的准确故障测距实用新方法  

A new and practical method for fault location based on single-end real time data in paralleled double circuit line

作　　者：粟小华[1] 

机构地区：[1]国电西北电力调度通信中心,陕西西安710004

出　　处：《继电器》2001年第5期5-7,12,共4页Relay

摘　　要：针对平行双回输电线的构成特点 ,提出了利用平行双回线单端实时数据进行准确故障测距的新算法。算法从原理上可完全消除过渡电阻、负荷电流及系统阻抗参数变化等因素对测距精度的影响 ,解决了平行双回线单线故障的准确测距问题。算法只需求解一元一次方程 ,运算量比已有同类测距算法小得多。A new algorithm of fault location is proposed by means of single-end real time data in paralleled double circuit line based on the construction features of the paralleled double circuit line. It can protect accurate location from the effect of transition resistance, load current and variable system impedance parameters in principle and therefore solve the problems of accurate fault location during a single line fault in a paralleled double circuit line. Implementing the algorithm by solving simple equations, therefore the calculation is quite easier than other fault location algorithm.

关 键 词：故障测距 过渡电阻 平行双回线 全波傅氏算法 高压输电线路 

分 类 号：TM930[电气工程—电力电子与电力传动]