串补电容对广西电网继电保护装置动作特性影响的分析

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1、-●，～f-◆o，广一■。．o’、-‘l■气j●stablestateandtransientstateofthesystem．Moreover,italsoraisessomespecialproblemsfortheworkingconditionsoftherelayprotectionunit．InordertOverifywhethertheactionoftheprotectionunitoftheseriescompensationusedonthe500kVlinesofGuangxipower鲥discorrectornotandcor

2、rectlyevaluatetheinfluencesbroughtbyseriescompensationontheprotectioncharacteristics(especiallydistanceprotection)，thistopicusedRTDSrealtimesimulatormanufacturedbyCanadianRTDScompanytobuilduponesimulatingmodelof500kVpower鲥d，SO嬲tosimulatethemalfunctionshappenedonthe500kVAClinesand

3、nearbylinesaftertheywereinstalledwithseriescompensation．Thesimulatingresultsweretransmittedtotheprotectionunitinstalledwithseriescompensationonthesite．Thetransientstateteststotheprotectionunitwerecarriedoutonsiteandtheactionsoftheprotectionunitwereanalyzed．Thetestindicatesthatthe

4、protectionunitcancorrectlyreflectthepre-settransientstate．ThisresearchtopicusesRTDSsimulatorandsimulatingwavereplayunittoconstituteonecompletesupervoltagerelayprotectionon—sitetransienttestsystemwithaseriescompensationcircuit．Thissystemcallfacilitateselectingvariousrelevantparame

5、tersandmalfunctionpointsoftheelectricalpowerⅡsystemandsimulatevariousmalfunctionshappenedonthelinesinstalledwithseriescompensation．Thesimulatingresultscallbetestedontheinstallationsiteofprotectionunit．Thetestmethodissimpleandeconomic．KeyWords：Relayprotectiontest；seriescompensatio

6、n；realtime●一‘simulation；simulatingwavereplay111k、户一1■‘-o’目录摘要．⋯．．．．．．．．．．⋯⋯⋯⋯⋯．．．．．．．．．．．．．．．．．．．．．．．．．．．．．．⋯．．．．．IABST蝴．．．．．⋯．．．．．．．．．．．．．⋯．．⋯．．．．．．．．．．．．．．．．．．．．．．．．⋯．⋯⋯II第一章绪论⋯．．．．⋯⋯⋯⋯．．⋯⋯．．⋯．．．．．⋯．．．．．⋯．．．⋯⋯．．．．．11．1课题的背景和研究意义⋯⋯⋯⋯⋯⋯⋯⋯．⋯⋯⋯⋯⋯⋯⋯l1．2串补电容对线路保护影响的国内外研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯．5

7、1．2．1国外研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．．51．2．2国内的研究应用情况⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯61．3课题的主要研究内容⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯7第二章建立含串补电容的500kV系统仿真模型⋯⋯⋯⋯⋯⋯⋯⋯．．⋯．．92．1本课题所使用数字仿真设备的基本概况⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．92．2河池串补仿真模型(模型一)⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯112．2．1网络等值方法及等值结果⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．122．2．2RSCAD元件库模型⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．142．2．3模型参数⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯22

8、2．2．4RTDS模型⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯282．3平果串补仿真模