基于简单通信的双端行波测距新方法

doi:10.11930/j.issn.1004-9649.201605051

中国电力 ›› 2018, Vol. 51 ›› Issue (3): 74-79.DOI: 10.11930/j.issn.1004-9649.201605051

基于简单通信的双端行波测距新方法

李振兴^1,2, 吴李群², 谭洪², 程宜兴¹, 李振华^1,2

1. 三峡大学电气与新能源学院, 湖北宜昌 443002;
2. 新能源微电网湖北省协同创新中心(三峡大学), 湖北宜昌 443002

收稿日期:2016-05-09 修回日期:2017-12-15 出版日期:2018-03-05 发布日期:2018-03-12
作者简介:李振兴(1977—),男,河南许昌人,博士,副教授,从事电力系统继电保护与控制研究,E-mail:lzx2007001@163.com。
基金资助:
国家自然科学基金资助项目（51507091）；强电磁工程与新技术国家重点实验室（华中科技大学）开放基金资助项目（2016KF003）；湖北省教育厅科学技术研究计划重点资助项目（D20171203）。

A Novel Method for Double Terminal Traveling Wave Fault Location Based on Simple Communication

LI Zhenxing^1,2, WU Liqun², TAN Hong², CHENG Yixing¹, LI Zhenhua^1,2

1. College of Electrical Engineering and New Energy, China Three Gorges University, Yichang 443002, China;
2. Hubei Provincial Collaborative Innovation Center for New Energy Microgrid (China Three Gorges University), Yichang 443002, China

Received:2016-05-09 Revised:2017-12-15 Online:2018-03-05 Published:2018-03-12
Supported by:
This work is supported by National Natural Science Foundation of China (No. 51507091), and State Key Laboratory of Advanced Electromagnetic Engineering and Technology (HUST) Open Foundation Projects (No. 2016KF003), and Key Foundation of Science and Technology of Hubei Provincial Department of Education (No.D20171203).

摘要/Abstract

摘要： 提高测距的可靠性和精度是行波故障定位研究的重点。在对比了传统的单、双端行波测距的性能以后，认为双端法的定位精度明显提高，但测距可靠性依赖于授时系统的稳定性。因此，在双端能够进行简单通信情况下，提出利用连接线路两端的信道，在检测到初始波头后立即向对端发送脉冲信号，并利用高精度计时器结合行波波速，在无双端对时的条件下实现初始波头到达时间之差的测定和故障位置的计算。通过分析现有的硬件制造技术和仿真试验后，认为该方法具有较高的精度。

关键词: 简单通信, 行波测距, 双端法, 时间同步, 脉冲

Abstract: Improving the reliability and precision is of vital importance for traveling wave fault location. After a brief comparison of the pros and cons of single terminal method and double terminal method, it comes to the conclusion that even though the traditional double terminal method have higher precision, its reliability is highly dependent on the time dissemination system. Therefore, by taking advantage of the connection channel at the ends of the lines where simple communication can be performed, a pulse signal is sent immediately to the other terminal as soon as the initial wave-front is detected. Then using high precision timer together with wave velocity, the fault location can be calculated without time synchronization at both ends. Finally through the analysis of the existing hardware manufacturing technology, it is believed that this method will have higher accuracy.

Key words: simple communication, traveling wave location, double terminal method, time synchronization, pulse

中图分类号:

李振兴, 吴李群, 谭洪, 程宜兴, 李振华. 基于简单通信的双端行波测距新方法[J]. 中国电力, 2018, 51(3): 74-79.

LI Zhenxing, WU Liqun, TAN Hong, CHENG Yixing, LI Zhenhua. A Novel Method for Double Terminal Traveling Wave Fault Location Based on Simple Communication[J]. Electric Power, 2018, 51(3): 74-79.

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基于简单通信的双端行波测距新方法

A Novel Method for Double Terminal Traveling Wave Fault Location Based on Simple Communication

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基于简单通信的双端行波测距新方法

A Novel Method for Double Terminal Traveling Wave Fault Location Based on Simple Communication

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