基于双端不同步数据的故障定位算法  

Fault location algorithms based on two-terminal unsynchronized data

作　　者：张华中[1,2] 王维庆[1] 朱玲玲[1,2] 崔冉[1] 

机构地区：[1]新疆大学电气工程学院,新疆乌鲁木齐830000 [2]周口市供电公司,河南周口466000

出　　处：《华东电力》2009年第1期116-119,共4页East China Electric Power

基　　金：自治区高校高技术研究重点项目(XJEDU2004I04);自治区高技术研究发展计划项目(200614118)

摘　　要：基于故障时沿线电压的分布规律提出了两种实用性较强的故障测距算法,利用线路两侧的电压和电流正弦相量计算故障距离,不要求双端数据的同步,能消除过渡电阻的影响,具有较高的工程实用价值。着重对输电线路故障测距方法进行可行性验证,采用ATP仿真获得故障线路的电气量值,并用M atlab计算故障点位置,仿真结果表明该方法有较高的精度,能满足现场实际要求。Two practical fault location algorithms were proposed based on the voltage distribution features along the transmission line during faults. The fault location was calculated using the current and voltage sinusoidal phasors at both ends without data synchronization, and the influence of the fault resistance can be eliminated. Verification of the methods＇ feasibility was emphasized. The electrical parameters of the fault line were acquired by ATP simulation, and the fault location was calculated with Matlab programming. Simulation results showed that the methods proposed could precisely locate the fault site and completely satisfied the field need.

关 键 词：输电线路 故障定位 双端不同步 ATP 

分 类 号：TM726[电气工程—电力系统及自动化]