第二十八卷第二期Vol.28,No.2JOURNALOFANHUIELECTRICALENGINEERINGPROFESSIONALTECHNIQUECOLLEGE安徽电气工程职业技术学院学报2023年6月June2023三端差动保护技术配置与应用探究柯仲来(国网黄山供电公司,安徽摘要:输电线路T接方式由于有良好的经济效益,在当下电网建设过程中应用日益广泛,但却给输电线路故障定位、定值整定和运行方式调整带来诸多问题,三端差动保护技术应运而生。文章对三端差动保护技术的应用背景、技术特点、配置规范、自适应主从定位技术、保护动作逻辑进行了分析,介绍了三端差动保护技术保护装置的保护试验和通道联调试验。理论分析和应用结果表明三端差动保护技术能够快速、准确地保护T型接线输电线路,保障电网系统的安全稳定运行。关键词:T接输电线路;三端差动保护技术;自适应主从定位中图分类号:TM773*.4黄山245200)文献标识码:A文章编号:1672-9706(2023)02-0048-05ResearchontheConfigurationandApplicationofThreeTerminalDifferentialProtectionTechnologyKEZhonglai(StateGridHuangshanPowerSupplyCompany,Huangshan245200,China)Abstract:TheTconnectionmodeoftransmissionlineiswidelyusedintheprocessofcurrentpowergridconstructionbecauseofitsgoodeconomicbenefits.However,ithasbroughtmanyproblemstothefaultpositioning,fixedvaluesettingandoperationmodeadjustmentoftransmissionline,sothethreeterminaldifferentialprotectiontechnologyarises.Thispaperanalyzesthebackground,technicalcharacteristics,configurationspecification,adaptivemaster-slavepositioningtechnologyandprotectionactionlogicofthreeterminaldifferentialprotectiontechnologyandgivestheprotectiontestandchanneljointtestoftheprotectiontechnology.ThetheoreticalanalysisandapplicationresultsshowthatthethreeterminaldifferentialprotectiontechnologycanquicklyandaccuratelyprotecttheT-typetransmissionlineandensurethesafeandstableoperationofthepowergridsystem.Keywords:Tconnectionmodeoftransmissionline;threeterminaldifferentialprotection;adaptivemaster-slavepositioning0引言随着经济社会的发展,电网的供电需求和供电可靠性也在不断增加,大量新变电站和输电线路的建设势在必行,电力系统结构日益复杂,输电线路的输送电量和电压等级不断提高,远距离输电线路日益增多。当下土地资源越来越...