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工频量双端测距综述
引用本文:袁宇春,刘晓川.工频量双端测距综述[J].电力系统保护与控制,2006,34(23):74-77,84.
作者姓名:袁宇春  刘晓川
作者单位:西华大学电气信息学院 四川成都610039(袁宇春),成都府河电气集团公司 四川成都610041(刘晓川)
摘    要:对于工频量双端测距,影响其精度的因素很多。简要介绍了目前基于双端工频量测距的主要计算方法,分析了算法的基本原理和将其应用于实际系统时的局限性。作者认为:只有在算法中统一考虑两端数据可能不同步、系统参数不能够准确得知、三相线路不换位或者不完全换位以及线路上可能存在补偿装置等情况,并在提取工频量时要能够消除非周期分量及其他各次谐波的影响,才可能使得测距结果达到满意的精度。

关 键 词:输电线路  故障测距  双端数据  工频量  电力系统
文章编号:1003-4897(2006)23-0074-04
收稿时间:2006-06-02
修稿时间:2006-06-022006-07-18

Survey of fault location algorithm based on two-terminal data of transmission line
YUAN Yu-chun, LIU Xiao-chuan.Survey of fault location algorithm based on two-terminal data of transmission line[J].Power System Protection and Control,2006,34(23):74-77,84.
Authors:YUAN Yu-chun  LIU Xiao-chuan
Affiliation:1. Xihua University, Chengdu 610039, China; 2. Chengdu Fuhe Electric Group Co. , Ltd,Chengdu 610041 ,China
Abstract:There are many factors that influence the accuracy of fault location using two terminal data.Fault location algorithm using two-terminal data of transmission line is discussed in this paper.The principle of the algorithm and their limitations when applied in practical system are analyzed.The conclusion is that the following factors must be take into account then the results of the algorithm may have high accuracy.These factors are,the data of transmission line of two terminals may be unsynchronized,the parameters of the transmission line may have error,the transmission line is un-transposed, compensating equipments are installed in transmission line.
Keywords:transmission line  fault location  two-terminal data  fundamental frequence  power system
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