换流变冷却器控制逻辑研究及典型案例分析王之赫,冯轩,张中平,宋锦元,邓凯(国网江苏省电力有限公司超高压分公司,江苏南京211102)摘要:换流变是换流站中的重要设备,换流变冷却器起到散热、油循环作用。控制系统是换流变冷却器的核心,决定了冷却器的正常运转。以某特高压换流站高端换流变为例,详细介绍了其冷却器控制系统配置及控制逻辑,最后对运行过程中出现的故障进行总结分析,为解释冷却器运行行为、排除冷却器故障提供了理论依据与实际经验。关键词:换流变;冷却器;控制系统;故障分析中图分类号:TM721.1DOI:10.19768/j.cnki.dgjs.2022.24.054StudyonControlLogicofConverterCoolerandAnalysisofTypicalCasesWANGZhihe,FENGXuan,ZHANGZhongping,SONGJinyuan,DENGKai(Extra-HighVoltageBranchCompany,StateGridJiangsuElectricPowerCo.,Ltd.,Nanjing211102,China)Abstract:Convertertransformerisanimportantequipmentinconverterstation,anditscoolingsystemplaystheroleofheatdissipationandoilcirculation.Thecontrolsystemisthecoreofconvertertransformercoolingsystem,whichdeter-minesthenormaloperationofthecoolingsystem.Inthispaper,takingthehigh-endconverterofanUHVconvertersta-tionasanexample,theconfigurationandcontrollogicofitscoolercontrolsystemareintroducedindetail.Finally,thefaultsoccurredintheoperationprocessaresummarizedandanalyzed,whichprovidesatheoreticalbasisandprac...