一种用于校验双端行波测距装置的测试系统的研发与测试

王伟; 吴亚辉; 李志勇; 庄良文; 周鹏鹏

引用本文:	王伟,吴亚辉,李志勇,等.一种用于校验双端行波测距装置的测试系统的研发与测试[J].电力系统保护与控制,2019,47(3):176-181.
	WANG Wei,WU Yahui,LI Zhiyong,et al.Development and test of a test system for verifying double-ended traveling wave fault location equipment[J].Power System Protection and Control,2019,47(3):176-181

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一种用于校验双端行波测距装置的测试系统的研发与测试
王伟¹,吴亚辉²,李志勇¹,庄良文¹,周鹏鹏¹
(1.许昌开普电气研究院，河南许昌461000;2.清华大学电机系电力系统及发电设备控制和仿真国家重点实验室，北京 100084)

摘要:

双端行波测距技术利用故障行波的初始波头抵达故障线路两端的时间差来实现故障定位，比单端测距和传统测距技术有着较高的精度和可靠性。双端行波测距装置在投入运行前必须经过专门的校验和测试，这是传统的继电保护测试仪所不能做到的。提出了一种用于校验该装置的测试系统的设计实现方案，并对系统样机做了大量的实验测试。实验结果表明，该测试系统的电压、电流输出具有很高的频率精度、幅值精度和同步性，满足双端行波测距装置的校验需求。

关键词: 双端测距测试系统校验测试行波

DOI：10.7667/PSPC180258

分类号:

基金项目:国家重点研发计划基金资助(2016YFB0900600)

Development and test of a test system for verifying double-ended traveling wave fault location equipment

WANG Wei¹,WU Yahui²,LI Zhiyong¹,ZHUANG Liangwen¹,ZHOU Pengpeng¹

(1. Xuchang Ketop Electric Research Institute, Xuchang 461000, China;2. State Key Lab of Control and Simulation of Power System and Generation Equipments, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China)

Abstract:

The double-ended traveling wave fault location technology uses the time difference between the initial wave head of the fault traveling wave to achieve fault location, and has higher accuracy and reliability than single-ended and traditional fault location techniques. The double-ended traveling wave fault location equipment must undergo special check and test before putting into operation, this is what the traditional relay protection tester can't do. This paper presents a design and implementation scheme for a test system which is used to verify the equipment, and a large number of experimental tests are performed on the prototype. The experimental results show that the voltage and current output of the test system have high frequency accuracy, amplitude accuracy and synchronism, which can meet the verification requirements of the double-ended traveling wave fault location equipment. This work is supported by National Key Research and Development Program of China (No. 2016YFB0900600).

Key words: double-ended fault location testing system verification test traveling wave

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