首页 | 本学科首页   官方微博 | 高级检索  
     

基于双端故障信息的高压电缆-架空线混合线路故障测距方法
引用本文:杨军,伍咏红,江文波,潘雪莉,田苗欣,辛振涛.基于双端故障信息的高压电缆-架空线混合线路故障测距方法[J].电网技术,2010(1).
作者姓名:杨军  伍咏红  江文波  潘雪莉  田苗欣  辛振涛
作者单位:武汉大学电气工程学院;湖南省电力公司;武汉供电公司;
摘    要:提出了一种基于双端故障信息的高压混合线路测距算法,利用输电线路首、末端电压、电流工频量分段递推,通过搜索两端线路沿线电压曲线的交点来确定故障点位置,并讨论了伪根的鉴别方法,进而针对双端数据不同步、不同采样频率、不同过渡电阻等各种情况进行了全面的仿真计算。仿真结果表明,该方法测距精度高,且不要求线路两端数据同步,不受线路两端系统阻抗和故障点过渡电阻的影响,具备较高的实用价值。

关 键 词:混合线路  高压电缆  架空线  故障测距  伪根  

A Fault Location Algorithm for Hybrid Transmission Line Composed by High Voltage Cable and Overhead Line Based on Two-Terminal Information
YANG Jun,WU Yong-hong,JIANG Wen-bo,PAN Xue-li,TIAN Miao-xin,XIN Zhen-tao.A Fault Location Algorithm for Hybrid Transmission Line Composed by High Voltage Cable and Overhead Line Based on Two-Terminal Information[J].Power System Technology,2010(1).
Authors:YANG Jun  WU Yong-hong  JIANG Wen-bo  PAN Xue-li  TIAN Miao-xin  XIN Zhen-tao
Affiliation:1.School of Electrical Engineering;Wuhan University;Wuhan 430072;Hubei Province;China;2.Hunan Electric Power Company;Changsha 410007;Hunan Province;3.Wuhan Electric Power Supply Company;Wuhan 430013;China
Abstract:A two-terminal fault information based fault location algorithm for hybrid transmission line composed by high voltage cable and overhead line is proposed.In the proposed algorithm that decides fault position by searching the crossover point of voltage curves along the hybrid line from the beginning terminal and ending terminal respectively,the piecewise recursion of power frequency voltages at the beginning and ending terminals of the hybrid line as well as the power frequency current flowing along the hybr...
Keywords:hybrid transmission line  high voltage power cable  overhead line  fault location  false root  
本文献已被 CNKI 等数据库收录!
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