基于D型行波原理的T接线路故障测距方法  

A fault location method for T-connection lines based on D-type traveling wave theory

作　　者：李传兵[1,2] 谭博学[1] 高鹏[1] 付振虎 江程樱 王俊江 陈平[1] 

机构地区：[1]山东理工大学智能电网研究中心,山东淄博255092 [2]宁德供电公司,福建宁德3521000 [3]德州供电公司,山东德州253000 [4]古田供电有限公司,福建宁德352200 [5]山东科汇电力自动化有限公司,山东淄博255087

出　　处：《电力系统保护与控制》2013年第18期78-82,共5页Power System Protection and Control

摘　　要：介绍了一种基于D型行波原理的T接线路故障测距方法,无需故障分支判断,计算简单。对T接线路故障时的行波过程进行了分析,直接利用故障时刻产生的初始波头到达T接线路三端的时刻,基于D型行波原理,进行两次双端故障测距,然后选择两次双端测距结果中的较大值作为最终故障测距结果。用ATP仿真软件和MATLAB软件对该方法进行了仿真分析。仿真结果表明,在T接线路发生故障时,此方法能够利用故障初期很短时间内的行波信号实现快速、准确的故障测距。On the basis of D-type traveling wave theory, a fault location method for T-connection lines is presented which doesn＇t need judge fault branch and the calculation is simple. Wave progress in T-connection lines is studied, and based on D-type traveling wave theory, two double-terminal results are calculated by using the time that the first traveling wave head generated during the fault reaches the ends of the three-terminal power lines. Various situations are simulated and analyzed by ATP simulation software and MATLAB software. The simulation results show that this method takes advantage of the initial traveling waves within a short lime to achieve fault location fast and accurately.

关 键 词：T接线路 故障测距 行波 初始波头 D型行波原理 

分 类 号：TM755[电气工程—电力系统及自动化]