基于双端量的串联补偿线路单相接地故障测距算法  

Single-phase grounding fault location algorithm based on dual terminal variables for line with series compensation

作　　者：张金虎[1] 徐振宇[1] 杨奇逊[1] 

机构地区：[1]华北电力大学新能源电力系统国家重点实验室,北京102206

出　　处：《电力自动化设备》2015年第4期121-125,共5页Electric Power Automation Equipment

摘　　要：针对串联补偿装置位于线路中间的情况,给出了一种基于双端量的串联补偿线路单相接地故障测距方法。该算法计及了故障过程中金属氧化物变阻器(MOV)的动作情况对线路实际阻抗值的影响,在无需知道串联补偿装置的相关参数和其具体工作状态条件下,就能准确地实现串联补偿线路的故障测距。利用EMTDC/PSCAD和MATLAB软件进行了仿真实验,实验结果验证了算法的有效性。A single-phase grounding fault location algorithm based on dual terminal variables is proposed for the line with series compensation device installed in the middle,which considers the effect of MOV（Metal Oxide Varistor） on the actual line impedance during the fault and precisely locates the fault without the relevant parameters and operating state of series compensation device. The validity of the proposed algorithm is verified by the results of simulation with EMTDC / PSCAD and MATLAB.

关 键 词：串联补偿线路 故障测距 单相接地故障 金属氧化物变阻器 故障分析 接地 双端量 

分 类 号：TM73[电气工程—电力系统及自动化]