Fault Location for Traveling Wave Based on Multi Measuring Points for UHVDC Long Distance Transmission Line

被引：0
|
作者：
Shu H. [1 ]
Tian X. [1 ]
Bai B. [2 ]
Chen H. [1 ]
机构：
[1] School of Electric Power Engineering, Kunming University of Science and Technology, Kunming
[2] Xingtai Electric Power Supply Company, State Grid Hebei Electric Power Company, Xingtai
来源：
Tian, Xincui (1105479731@qq.com.cn) | 1600年 / Science Press卷 / 43期
基金：
中国国家自然科学基金;
关键词：
Long distance transmission line; Multi measuring points; Rogowski coil detection technology; Total line length; Traveling wave fault location; UHVDC;
D O I：
10.13336/j.1003-6520.hve.20170628002
中图分类号：
学科分类号：
摘要：
In order to solve the problem of the fault location of the super long high voltage direct current (HVDC) transmission line, we proposed a traveling wave fault location method based on the multi measuring points. Detection device with Rogowski coil as the core was installed along the DC line long range. When the DC line fault occurs, the distance main station carries out the discrimination of the fault section, the wrong time is eliminated by analyzing the fault wave of each detection point to the time, and fault distance is calculated by the time at which the wave arrives at the measuring points of three points closest to the fault point and the length of line between three points. The result shows the fault location calculation does not need to introduce experience velocity and line length, which can mitigate the error caused by the change of wave velocity and the inaccuracy of the total length of the line. A large number of simulation results show that the accuracy and reliability of long distance HVDC line fault location can be improved by acquiring the fault information from multi measuring points. The research results show that the proposed method is effective and can provide references for fault location of ultra-high voltage direct current (UHVDC) long distance transmission lines. © 2017, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
引用
收藏
页码：2105 / 2113
页数：8
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