电力系统及其自动化学报2016，Vol.28Issue(12)：1-6,6.DOI:10.3969/j.issn.1003-8930.2016.12.001
基于双端数据和算法融合的输电线路故障测距新方法
Transmission Line Fault Location Method Based on Double-ended Data and Algorithm-fusion
摘要
Abstract
Considering the disadvantages of frequency method and traveling wave method,this paper presents a new transmission line fault location method based on double-ended data and algorithm-fusion. Firstly,the transmission line is divided into five intervals by the location of the fault,then frequency method can determine the fault zones using unsyn⁃chronized data at the two ends of line,which will guarantee the reliability for identifying the wave front of traveling wave. Secondly,a different location strategy will be applied according to the fault section,which can use the relationship among the arrival time of wave front,wave velocity and line length to establish an equation to eliminate the influence of wave speed. Moreover,the location result is replaced by ratio variable to reduce the influence of length change,which improves the accuracy and reliability. The simulation result indicates the effectiveness of the proposed method.关键词
输电线路/故障测距/双端数据/算法融合/工频法/行波法Key words
transmission lines/fault location/double-ended data/algorithm-fusion/frequency method/traveling wave method分类
信息技术与安全科学引用本文复制引用
罗毅,田吉华..基于双端数据和算法融合的输电线路故障测距新方法[J].电力系统及其自动化学报,2016,28(12):1-6,6.基金项目
国家自然科学基金资助项目 （）
