电力系统自动化Issue(22)：152-156,163,6.DOI:10.7500/AEPS20150118005
基于相位特性的高压输电线路双端非同步故障测距算法
A Two-terminal Fault Location Algorithm Using Asynchronous Data Based on Phase Characteristics for High Voltage Transmission Line
摘要
Abstract
The current algorithms of unsynchronized two-terminal fault location may lead to failure to locate the fault because of the false root.To overcome the defect,a new two-terminal fault location algorithm is proposed.Based on a distributed parameter model for the power transmission line,this paper uses the ratio of positive to negative sequence component of voltage or the ratio of voltage positive and fault positive sequence component to eliminate the asynchronous angle and then proposes a new algorithm of two-terminal fault location with asynchronous data based on the monotonicity of the phase.The algorithm without the false roots and the bisection method or secant method can be used to find out the fault position quickly.The EMTP simulation results show that this method is hardly affected by transition resistance,fault type and the asynchronous angle.The computation amount is small and the ranging precision high.关键词
双端不同步数据/故障测距/伪根/高压输电线路Key words
two-terminal unsynchronized data/fault location/false roots/high voltage transmission line引用本文复制引用
陈旭,朱永利,郭小红,高艳丰,赵磊,赵雪松..基于相位特性的高压输电线路双端非同步故障测距算法[J].电力系统自动化,2015,(22):152-156,163,6.基金项目
中央高校基本科研业务费专项资金资助项目(2014xs74)。This work is supported by Fundamental Research Funds for the Central Universities(No.2014xs74) （2014xs74）
