基于雷电记录与行波数据的雷击故障测距结果优化方法  

Optimization of Lightning Induced Fault Location Based on Information Fusion of Traveling Wave Data and Lightning Record

作　　者：曹璞璘[1] 束洪春[1] 马仪[2] 黄然[2] 董俊[3] 陈诺[1] 

机构地区：[1]昆明理工大学电力工程学院,云南省昆明市650500 [2]云南电网有限责任公司电力科学研究院,云南省昆明市650217 [3]哈尔滨工业大学电气工程及自动化学院,黑龙江省哈尔滨市150001

出　　处：《电力系统自动化》2016年第7期74-82,共9页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(U1202233;51267009);云南省重点项目(2011FA032);高等学校博士学科点专项科研基金资助项目(20105314110001)~~

摘　　要：针对输电线路故障概率最高的雷击故障存在实测数据故障点反射波难以标定等困难,提出基于行波测距数据和雷电定位系统记录等多平台来源信息的雷击故障测距结果优化方法。以实测数据中疑似故障点反射波对应的疑似故障点作为基准,根据最近邻地闪记录与疑似故障点之间的空间距离和时差排除雷电定位系统中非故障雷击地闪记录和实测行波数据中非有效行波的干扰,初步确定故障点位置。在此基础上,根据最近邻地闪记录在空间位置上的趋向性,以线路走廊走势作为基准,计算最近邻地闪记录与线路走廊各基杆塔之间的空间趋势接近度,以接近度作为修正系数对行波测距结果进行优化。最后,以故障实测数据进行验证表明该方法可行、有效。The lightning induced fault which is the most common fault reason may cause difficulty in detecting reflex wave and other problems.This paper proposes a new type of algorithm aimed at optimizing the fault location results by lightning location system record and traveling wave data.The suspected distance correspond to suspected reflex wave is assumed to be a kind of standard,so the nearest cloud-to-ground flash record is searched from all suspected fault locations calculated by suspected reflected surge from the fault point from measured data for removing the pseudo-root of fault location and finding the seemingly traveling wave fault location.According to the line direction of line corridor and the tendency of the nearest cloud-to-ground flash record,the space trend approach index of nearest cloud-to-ground flash record and tower is calculated,and the space trend approach index is used to optimize the traveling wave fault location result.The feasibility of the proposed method is validated by the measured traveling records.

关 键 词：单端行波测距 波头标定 信息融合 线路走廊趋势 雷击记录 

分 类 号：TM863[电气工程—高电压与绝缘技术]