首页 | 本学科首页   官方微博 | 高级检索  
     检索      

基于双端不同步采样数据的高压输电线路故障测距
引用本文:卫志农,张颖,周红军.基于双端不同步采样数据的高压输电线路故障测距[J].继电器,2005,33(23):5-8.
作者姓名:卫志农  张颖  周红军
作者单位:河海大学电气工程学院,江苏 南京 210098
摘    要:提出了一种基于双端不同步采样数据的高压输电线路故障测距算法。该算法考虑了线路的分布参数特性,利用线路双端电压和电流量进行故障测距,从而保证测距不受过渡电阻的影响。对于不换位三相线路,采用模分量法,使相互耦合的相空间三相线路解耦为相互独立的模量。为了避免求解导数的复杂性,该文采用Powell方向加速法进行求解。仿真计算表明,算法对整个线路长度区间内的任何故障点都能精确测距。

关 键 词:高压输电线路    故障测距    双端线路    分布参数    不同步采样    相模变换    Powell方向加速法
文章编号:1003-4897(2005)23-0005-04
收稿时间:2005-04-08
修稿时间:2005-06-25

A fault location algorithm for HV transmission line based on two-terminal asynchronous data
WEI Zhi-nong, ZHANG Ying, ZHOU Hong-jun.A fault location algorithm for HV transmission line based on two-terminal asynchronous data[J].Relay,2005,33(23):5-8.
Authors:WEI Zhi-nong  ZHANG Ying  ZHOU Hong-jun
Institution:School of Electrical Engineering, Hohai University, Nanjing 210098, China
Abstract:This paper presents a fault location algorithm for HV transmission line based on two-terminal asynchronous data.The distributed parameter line model is used for the proposed algorithm.It is applicable for long distance lines since shunt capacitance is taken into account.Considering the effect of fault resistance,the technique utilizes asynchronous samples from both terminals.To eliminate the effect of untransposed line,phase components are transformed to modal components.Then the coupled three-phase components are transferred to the decoupled modal components.Powell's direction acceleration method is used in this paper to avoid the complexity of derivation.The simulation results show that the fault location is feasible at any point on the whole line.
Keywords:HV transmission line  fault location  double line terminals  distributed parameters line  data sampling asynchronous  phase-modal transformation  Powell's direction acceleration method
本文献已被 CNKI 维普 等数据库收录!
点击此处可从《继电器》浏览原始摘要信息
点击此处可从《继电器》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号