有载分接开关高效切换试验技术研究  

Efficient Switching Test Technique of On-load Tap Changer

作　　者：汪可 王若溪 李刚 王宇轩 张书琦 李鹏 李戈琦 WANG Ke;WANG Ruoxi;LI Gang;WANG Yuxuan;ZHANG Shuqi;LI Peng;LI Geqi(China Electric Power Research Institute,Haidian District,Beijing 100192,China)

机构地区：[1]中国电力科学研究院有限公司,北京市海淀区100192

出　　处：《中国电机工程学报》2023年第24期9752-9762,共11页Proceedings of the CSEE

基　　金：国家重点研发计划项目(2021YFB2402100)。

摘　　要：切换试验是考核有载分接开关(on-load tap changer,OLTC)长期运行可靠性的重要试验项目之一。为解决现有切换试验回路试验周期长、试验成本高等问题,该文开展OLTC高效切换试验技术研究。首先,提出一种满足多台OLTC切换的切换试验回路,分析回路参数对试验结果的影响;其次,基于ATP-EMTP进行不同OLTC数量和不同试验方案的仿真分析,提出高效切换试验的试验方案。最后,采用2台不同类型OLTC,按照“一前一后”切换的试验方案,对切换试验回路进行验证。结果表明,该试验回路在多台OLTC进行切换试验时也能满足试验条件,达到了OLTC高效切换试验的需求,可为OLTC高效切换试验提供有益参考。The switching test is one of the most important tests to evaluate the long-term operation reliability of the on-load tap changer(OLTC).In order to solve the problems of long test periods and high test costs of the existing switching test,this paper develops an efficient switching test technique.First,a high-efficiency switching test circuit that satisfies the switching of multiple OLTCs is proposed,and the influence of parameters on the test results is analyzed.Secondly,based on ATP-EMTP,the simulation analysis of different OLTC numbers and different test schemes are carried out,and the test scheme of high-efficiency switching test is introduced.Finally,according to the test scheme of“after one OLTC switching is completed,the other OLTC starts switching”,two different types of OLTCs are used to verify the high-efficiency switching test circuit.The results show that the test circuit meets the test conditions and the requirements of efficient switching tests for OLTC switching when multiple OLTCs perform switching tests,which provides a beneficial reference for the switching test of OLTCs.

关 键 词：有载分接开关 切换试验 高效试验方法 电磁暂态仿真 ATP-EMTP 

分 类 号：TM403[电气工程—电器]