使用输电线两端数据两点异相故障测距的研究  

RESEARCH ON FAULT LOCATION USING TWO TERMINAL DATA OF TRANSMISSION LINE FOR TWO POINT FAULT OCCURRING ON DIFFERENT PHASES

作　　者：孙立山[1] 孙桂瑛[1] 陈学允[1] 王晓媛 

机构地区：[1]哈尔滨工业大学电气工程系,哈尔滨150001 [2]黑龙江省电子技术研究所

出　　处：《电网技术》1999年第11期47-49,53,共4页Power System Technology

摘　　要：基于高压输电线路的分布参数模型，使用线路两端电压、电流的正序和负序分量，对高压输电线路两点异相故障提出了一种新的测距算法。该方法不必对两端数据进行同步采样，无需迭代计算，并适用于一点故障情况。其测距精度不受系统运行方式和过渡电阻的影响。Based on the distributed parameter model for transmission line, a new fault location method for short circuit fault of two points on different phases of the power transmission line is presented. In this method only the positive sequence and negative sequence components of voltage and current of two terminals are used, and the synchronization of current and voltage sampling is not needed. The equations of fault location are the first order ones, and the location accuracy is not influenced by the operating mode of the system, and the variation of system impedance and transient resistance. The simulation result shows that this method is effective.

关 键 词：输电线路 故障测距 高压 分布参数模型 

分 类 号：TM855[电气工程—高电压与绝缘技术] TM755