基于配电自动化主站的单相接地故障定位系统设计与应用

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1、第46卷第21期电力系统保护与控制Vol.46No.212018年11月1日PowerSystemProtectionandControlNov.1,2018DOI:10.7667/PSPC171585基于配电自动化主站的单相接地故障定位系统设计与应用121223王兴念，张维，许光，郭上华，张全忠，许冲冲(1.珠海许继芝电网自动化有限公司，广东珠海519060；2.珠海许继电气有限公司，广东珠海519060；3.国网北京市电力公司，北京100045)摘要：为满足大量配电终端、故障指示器接入配电自动化主站，提出基于单相接地故障录波暂态量故障特征提取方法和融合故障录波故障特征量和故障事件信息的单相

2、接地故障区段定位策略。设计基于配电自动化主站的单相接地故障在线定位系统。为满足工程应用，给出现场设备混装、通信延时、启动条件缺失条件下的解决方案以及融合单相接地、短路接地故障信息的统一处理策略。工程现场应用结果表明，基于配电自动化主站的单相接地故障定位系统能满足各种接线方式下、复杂环境的应用需要。关键词：配电自动化；单相接地故障；故障录波；信息融合；故障定位Designandapplicationaboutsingle-phasegroundingfaultlocationsystembasedondistributionautomationmasterstation121223WANGXin

3、gnian,ZHANGWei,XUGuang,GUOShanghua,ZHANGQuanzhong,XUChongchong(1.ZhuhaiXujizhiPowerAutomationLtd.,Zhuhai519060,China;2.ZhuhaiXujiElectricalLtd.,Zhuhai519060,China;3.StateGridBeijingElectricPowerCompany,Beijing100045,China)Abstract:Inordertomeetthelargenumberofdistributionterminalandfaultindicatorcon

4、nectedintodistributionautomationmasterstation,atransientfaultfeatureextractionmethodbasedonsingle-phasegroundingfaultrecordingwaveandlocalizationstrategyofsingle-phasegroundingfaultandfusioningfaultrecordfaultfeatureandfaulteventinformationareproposed.Aon-linesingle-phasegroundingfaultlocationsystem

5、basedondistributionautomationmasterstationisdesigned.Inordertomeettheengineeringapplication,thesolutionofequipmentmixingonsite,communicationdelayandstart-upconditionabsenceisgivenandtheunifiedprocessingstrategyoffusioningfaultinformationforsingle-phaseroundandshort-circuitispresented.Theapplicationr

6、esultsinengineeringfieldshowthatthesingle-phasegroundinglocationsystemcanmeettheapplicationrequirementsofvariouswiringmodesandcomplexenvironment.ThisworkissupportedbySpecialFundforAppliedScienceandTechnologyResearchandDevelopmentofGuangdongProvincialScienceandTechnologyDepartment(No.2015B012128006)a

7、ndScienceandTechnologyProjectofStateGridCorporationofChina(No.52020116000F).Keywords:distributionautomation;single-phasegroundingfault;faultrecord;informationfusion;faultlocation障运行可使之扩大为相间短路，影响电力系统安全