基于单端电气量法故障测距的研究  

Study on Fault Distance Measurement Based on Single-end Electric Parameter Method

作　　者：黄俊伸[1] 高学军[1] 吕英飞[1] 佘小莉[1] 

机构地区：[1]三峡大学电气与新能源学院,湖北宜昌443002

出　　处：《陕西电力》2013年第2期28-31,54,共5页Shanxi Electric Power

摘　　要：提出了一种利用单端电流、电压基于故障分析法的高压输电线路测距算法。故障分析法就是利用线路故障时测量的电压、电流,通过分析和计算求出故障点离M端的距离,该算法从原理上对高压线路不考虑对地分布电容和考虑对地分布电容两者测距进行比较,并利用Matlab/Simulink进行仿真,结果表明该算法在考虑对地电容的条件下具有较高精度。A kind of fault distance measurement is put forward based on fault analysis method by using single-end current and voltage in HV transmission line. The fault analysis method is to calculate the distance from fault point to M end by using the measured voltage and current when the fault occurred. The method compares the measured fault distance in principle under considering distributed capacitance to earth ＆ no considering distributed capacitance to earth. The Matlab/Simulink simulation result shows that the method has higher precision when considering distributed capacitance.

关 键 词：输电线路 单端法 故障测距 

分 类 号：TM771[电气工程—电力系统及自动化]