[6] Flexible Active Power Control of Distributed Power Generation Systems During Grid Faults.pdf

《[6] Flexible Active Power Control of Distributed Power Generation Systems During Grid Faults.pdf》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、IEEETRANSACTIONSONINDUSTRIALELECTRONICS,VOL.54,NO.5,OCTOBER20072583FlexibleActivePowerControlofDistributedPowerGenerationSystemsDuringGridFaultsPedroRodriguez,Member,IEEE,AdrianV.Timbus,StudentMember,IEEE,RemusTeodorescu,SeniorMember,IEEE,MarcoLiserre,SeniorMember,IEEE,andFredeBlaab

2、jerg,Fellow,IEEEAbstractTheincreasingpenetrationofdistributedpowergen-networkcancreateinstabilityinthepowersystems,evenlead-erationintothepowersystemleadstoacontinuousevolutioningtooutages.ofgridinterconnectionrequirements.Inparticular,activepowerInordertomaintainastablepowersystemi

3、ncountriescontrolwillplayanimportantrolebothduringgridfaults(low-withalargepenetrationofdistributedpower,transmissionvoltageride-throughcapabilityandcontrolledcurrentinjection)andinnormalconditions(reservefunctionandfrequencyregula-systemoperatorsissuemorestringentdemandsregardingth

4、etion).TheaimofthispaperistoproposeaflexibleactivepowerinterconnectionoftheDPGStotheutilitygrid[2]–[4].Amongcontrolbasedonafastcurrentcontrollerandareconfigurablethenewdemands,powergenerationsystemsarerequestedtoreferencecurrentselector.Severalstrategiestoselectthecurrentridethroughgr

5、iddisturbancesandtoprovideancillaryservicesreferencearestudiedandcomparedusingexperimentalresultsinordertobehaveasaconventionalpowerplant,andhencethatareobtainedduringanunsymmetricalvoltagefault.There-sultsoftheanalysisallowselectionofthebestreferencecurrentintohavethecapabilityofsu

6、stainingtheutilitynetworkintheeverycondition.Theproposedmethodsfacilitatemultiplechoicessituationofafault.Therefore,thegridfaultinfluenceontheforfaultridethroughbysimplychangingthereferenceselectioncontrolofDPGSneedstobeinvestigated.criteria.Thispaperdiscussessomepossiblecontrolstrat

7、egiesthataIndexTermsControlstrategies,distributedpowergenerationDPGScanadoptwhenrunningonfaultygridconditions.First,systems(DPGSs),faultridethrough,gridfaults,positiveandaclassificationofthegridfaultsispresented,followedbysomenegativesequences,powercontrol,windturbines(WTs).considera

8、tionofthecontrolstr