高电压技术2018，Vol.44Issue(1)：37-43,7.DOI:10.13336/j.1003-6520.hve.20171227005
半波长交流输电线路保护测试技术
Research on Testing Technology of Half-wavelength AC Transmission Line Protection
摘要
Abstract
Fault characteristics of half-wavelength AC transmission lines are significantly different from those of conventional transmission lines.The existing line protection principle is no longer applicable to half-wavelength AC transmission lines.Researchers have developed new half-wavelength line protection devices,which put forward new requirements on line protection testing technology and environment.We realized a real-time closed-loop test of half-wavelength AC transmission line protection devices based on half-wavelength AC transmission dynamic simulation test platform.Moreover,we analyzed the key testing technology of the half-wavelength line protection different from the traditional line protection test and the construction of the test system.The test content was established and the test results were presented.Through the protection performance testing of half-wavelength line protection device,the algorithm defect of protection malfunction under differential current caused by MOA turning-on was detected and the settlement proposals such as blocking zero-sequence differential protection and increasing the braking coefficient were presented.The results lay a foundation for the practical application of half-wavelength AC transmission.关键词
半波长交流输电/线路保护/动态模拟/测试技术/缺陷消除Key words
half-wavelength AC transmission/line protection/dynamic simulation/testing technology/eliminating defects引用本文复制引用
詹荣荣,孟江雯,余越,杜丁香,詹智华..半波长交流输电线路保护测试技术[J].高电压技术,2018,44(1):37-43,7.基金项目
国家电网公司科技项目(5442JB150017).Project supported by Science and Technology Project of SGCC (5442JB150017). （5442JB150017）
