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1、2004IntemstionalConferenceonPowerSystemTechnology-POWERCON2004Slngapore,21-24November2004PowerFlowCalculationofPowerSystemsIncorporatingVSC-HVDCLiGengyin,Member,IEEE,ZhouMing,StudentMember,IEEE,HeJie,LiGuaagkai,LiangHaifengasynchronouselectricalpowersystems,improvingpowerAbstrr
2、rct-VoltageSourceConverter(VSC)basedHVDCqualityandsoon[3].ResearchersftomdifferentcountriesWSC-HVDC)technologyisakindofnewlydevelopedHVDChavemadegreatachievementsinthestudyofoperationtransmissiontechnotogy.ThispapermakesdetailedanalysistomechanicsandcontrolpattemsofVSC-HVDC.But
3、thestudythebasicprincipieandthestructureofVSC-HVDC,andsetsupofpowerflowcalculationofpowersystemsincorporatingthesteady-stntemathematicalmodelofVSC-FNDC,mderfixedcontrolparametersandfixedpowerflowcontrolobjectivesVSC-HVDCisnotaccessibleinarticlessofar.respectively.Thenanovelalgo
4、rithmforpowerflowcalculationPowerflowcalculationofpowersystemsincorporatingbnsedonequivaleniinjdonpowerisdeduced.ApowerflowVSC-HVDCisindispensabletotheanalysisofsteadystatecalculationprogramofpowersystems,incorporatingVSC-characteristicsofVSC-HVDC,totheplanning,design,HYDCtrans
5、missionlinesmdmulti-terminalVSC-HMCoperation,managementofVSC-HVDCsystems,andrelevantnetworks,isdevelopedbasedontheUserProgrammingInterface(WPI)ofPowerSystemAnalysisSoftwarePackage,PSASPIITPI.controlstrategystudies.Also,itcontributestoVSC-HVDCNumericalexamplesofEPRI7-bustestsyst
6、emwitha2-transientcharacteristicsstudyandrelevantprotectionterminalVSC-Hwclineandatestsystemwith3-terminalequipmentdevelopment.VSC-HVDCnetworkaregiven.TheresultsshowthatthePowerflowcalculationofconventionalHVDCsystemhasproposedsteady-statemodelofVSC-BVDCandcorrespondingbeensowe
7、lldevelopedastobewidelyusedinlargescalepowerflowcalculationbasedonPSASPiscorrectandeffective.AC-DCpowerflowcalculationsoftware[4-71.AsVSC-Thissoftwarepackngeprovidesapowerfultoolforplanaing,HVDCisessentiallydifferentfromitstraditionalcounterpartdesign,operation,management,andre
8、lativecontrolstrategystudiesofVSC-HvI)Csystems.duetoth
