配电网行波定位优化配置新方法  

A New Method for Optimal Configuration of Traveling Wave Location in Distribution Network

作　　者：王浩宇 谭阳红[1,2] 张海霞 洪亚[1,2] WANG Haoyu;TAN Yanghong;ZHANG Haixia;HONG Ya(College of Electrical and Information Engineering,Hunan University,Changsha 410082,China;State Grid Huangshi Power Supply Company,Huangshi 435000,China)

机构地区：[1]湖南大学电气与信息工程学院,长沙410082 [2]国网黄石供电公司,黄石435000

出　　处：《电力系统及其自动化学报》2018年第9期22-28,共7页Proceedings of the CSU-EPSA

基　　金：国家重点基础研究发展计划(973计划)资助项目(2012CB215106);国家自然科学基金资助项目(51577046);湖南省自然科学基金资助项目(14JJ7029);浙江省重中之重控制科学与工程一级学科开放基金资助项目

摘　　要：为提高配电网故障行波定位的经济性,本文提出一种定位装置优化配置方法。首先基于图论知识对配电网进行分层,将无下一层起始端点的线路定义为独立支路;再通过反推法分析得到,含有独立支路的T型线路,只在其3个顶点配置定位装置,即可实现故障定位,不需在独立支路配置。通过PSCAD/EMTDC仿真软件验证,结果表明优化配置后的定位精度与文献相当,但是定位装置数量分别减少了40%、50%,且故障定位结果不受过渡电阻和故障初始角的影响,大大提高了配电网行波定位的经济性。Aiming to improve the economic efficiency of fault location in distribution network,presented a method to op-timize the positioning device.Firstly,the distribution network was layered based on graph theory,and the line without next starting point was defined as an independent branch.Then,Obtained by backstepping method,teed-circuit only needed to configure the positioning device at the three vertices,the fault location could be realized,and it was not neces-sary to configure the terminal of independent branch.Verified by PSCAD/EMTDC simulation software,the results show that the positioning accuracy of the optimized configuration is equivalent to that of the literature,but the number of posi-tioning devices is reduced by 40%and 50%respectively.The fault location result is not affected by the transition resis-tance and the initial angle of the fault,the economy of traveling wave location in distribution network is greatly improved.

关 键 词：配电网 T型线路 行波定位 独立支路 优化配置 

分 类 号：TM711[电气工程—电力系统及自动化]