一种基于高压输电线路双端故障测距算法的伪根判别方法  

A False Root Determination Method Based on Two-Terminal Fault Location Algorithm for High Voltage Transmission Line

作　　者：靳希[1] 吴世敏[1] 吴剑敏[2] 鲁炜[2] 吴文辉[1] 

机构地区：[1]上海电力学院电力工程系,上海200090 [2]上海市电力公司超高压输变电公司,上海200063

出　　处：《华东电力》2010年第1期72-76,共5页East China Electric Power

基　　金：国家自然科学基金项目(50907039);上海市教育委员会重点学科建设项目资助(J51301)

摘　　要：从高压输电线路故障时只有故障点电压幅值相等的原理出发,分析了该测距算法产生伪根的原因,利用输电线路分布参数模型沿线幅值变化规律来缩小故障测距范围,从而规避产生伪根的可能,在此基础上,提出了一种基于高压输电线路双端故障测距算法的通用伪根判别方法,ATP仿真和相应的Matlab计算程序验证了该方法的可行性。According to the principle that only the fault point＇s voltage amplitude of the fault line is equal, why the location algorithm causes false roots was analyzed. And based on the distributed parameter transmission line model, the false root could be avoided by using the amplitude changing law along the line to reduce the fault location range. On the basis, a general false root determination method based on two-terminal fault location algorithm for high voltage transmission line was proposed. The feasibility of the method was validated through ATP simulation and relevant Matlab computing procedures.

关 键 词：分布参数模型 双端测距 伪根 ATP仿真 

分 类 号：TM773[电气工程—电力系统及自动化]