Fault Location in Neutral Non-effectively Grounded Distribution Systems Using Phase Current and Line-to-line Voltage

被引：8
|
作者：
Tang, Jinrui [1 ]
Yin, Xianggen [1 ]
Wen, Minghao [1 ]
Zhang, Zhe [1 ]
机构：
[1] Huazhong Univ Sci & Technol, State Key Lab Adv Electromagnet Engn & Technol, Wuhan 430074, Peoples R China
来源：
ELECTRIC POWER COMPONENTS AND SYSTEMS | 2014年 / 42卷 / 13期
基金：
中国国家自然科学基金;
关键词：
distribution systems; fault location; non-effectively grounding; traveling wave; NETWORKS; SIGNALS;
D O I：
10.1080/15325008.2014.933367
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：
A scheme of single-line-to-ground fault location in neutral non-effectively grounded distribution systems is proposed in this article. The characteristics of phase current traveling waves and line-to-line voltage traveling waves are analyzed. The wavelet transform technique is used to extract the information of the arrival times, polarities, and amplitudes of the recorded traveling waves. The fault location scheme can simultaneously realize faulty feeder identification, fault section location, and fault position location even if only two-phase current transformers are installed in the Phases A and C and feeder terminal units only to provide line-to-line voltage information. The effectiveness and practicability of the proposed scheme have been verified by PSCAD/EMTDC simulation results.
引用
收藏
页码：1371 / 1385
页数：15
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