利用双端不同步数据的高压输电线路故障测距实用算法及其实现  

STUDY ON PRACTICAL FAULT LOCATION ALGORITHM FOR TWO\|TERMINAL HV AND EHV TRANSMISSION LINES USING ASYNCHRONOUS DATA AT BOTH ENDS

作　　者：束洪春[1] 司大军[1] 葛耀中[2] 陈学允[3] 

机构地区：[1]昆明理工大学,云南省昆明市650051 [2]西安交通大学,陕西省西安市710049 [3]哈尔滨工业大学,黑龙江省哈尔滨市150001

出　　处：《电网技术》2000年第2期45-49,共5页Power System Technology

基　　金：云南省中青年学术和技术带头人培养经费;省应用基础研究基金!( 98E163M ) ;省教委科学研究基金!(149912024)

摘　　要：利用单侧电压电流工频分量的输电线路故障测距算法,进行双端电源系统的线路故障定位时,远端系统等值阻抗变化对测距精度的影响是无法克服的。文中提出一种双端电源系统的高压输电线路故障定位的实用算法,其特点为:①两端数据不必同步;②用于短、中等长度线路时,不需要迭代求解,即定位方程为一个算式;③不需要区分故障类型;④该方法适用于换位线路。When the fault location algorithm of transmission line based on the fundamental frequency component of voltages and currents at one terminal is used to locate the faulty position in two terminal transmission line, it is impossible to overcome the influence of equivalent impedance variation of remote source on the accuracy of fault location. Using the asynchronous voltage and current at both ends, a new practical fault location algorithm for two terminal transmission lines is presented in this paper. This algorithm has the following characteristics: (1) The measurements at both terminals of the transmission line are not required to be synchronized. (2) This algorithm is simple and non iterative for the short or middle length of transmission line. (3) This method is independent of the fault type. (4)for long lines, double circuit lines as well as transposed and non transposed lines.This method is suitable. A large amount of results of transient simulation show that this algorithm has higher accuracy of fault location.

关 键 词：高压输电线路 故障测距 算法 双端电源系统 

分 类 号：TM855[电气工程—高电压与绝缘技术] TM726.1