Improved GPS travelling wave fault locator for power cables by using wavelet analysis

被引：35
|
作者：
Zhao, W [1 ]
Song, YH [1 ]
Chen, WR [1 ]
机构：
[1] Brunel Univ, Dept Elect & Comp Engn, Inst Power Syst, Uxbridge UB8 3PH, Middx, England
来源：
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS | 2001年 / 23卷 / 05期
关键词：
power system fault location; travelling wave; wavelet analysis; global positioning system;
D O I：
10.1016/S0142-0615(00)00064-8
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The paper proposes an improved approach to cable-fault location, which is essentially based on synchronised sampling technique, wavelet analysis and travelling wave principle. After an outline of the new scheme and brief introduction to the three major techniques, wavelet analysis of faulty transient waveforms is conducted in details to determine the best wavelet levels for this particular application. Then a 400 kV underground cable system simulated by the Alternative Transient Program (ATP) under various system and fault conditions is used to fully evaluate the approach. Numerical results show that this scheme is reliable and accurate with errors of less than 2% of the length of the cable line. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：403 / 411
页数：9
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