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ID:34140966
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页数:8页
时间:2019-03-03
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1、Low-voltageride-throughofafullconverterwindturbinewithpermanentmagnetgeneratorJ.F.ConroyandR.WatsonAbstract:Thelow-voltageride-throughcapabilityofa2MWfullconverterwindturbinewithpermanentmagnetsynchronousgeneratorisinvestigatedherein.Adetaileddescripti
2、onofthesystem,itscontrolleroptionsanditsbehaviourwhensubjectedtoaseverevoltagedip,ispresented.Acontrolschemefortheturbinethatallowsittowithstandseverevoltagedipsisdesignedandsimulated.Thiscontrolschemeemphasisestheregulationofthedc-linkvoltageandminimi
3、sationofthedrivetraintorquesurplus.Also,thelevelofmodellingdetailrequiredforstabilityanalysisisanalysedanddiscussed.1Introductionincludeagearbox,reducingtherequirednumberofstatorpolepairs,makingthegeneratorlighterandsmaller.TheThenumberofwindturbinesco
4、nnectedtoelectricitynet-frequencyconverterusesapairofback-to-backPWMworksinEuropeisincreasingrapidly[1].Thesignificantvoltagesourceconverters,withanintermediatedccapaci-increaseinwindpowercapacityhasledtoconcernsabouttor.Fig.2isanillustrationofthissyste
5、m.powersystemstabilityaswindfarmsreplaceorareinstalledThefullconverterwindturbineisthemostflexiblewindinsteadofconventionalgeneratingtechnologiesthatuseturbinetechnologyfromanLVRTpointofview,asthefossilfuelsastheprimaryenergysource.Oneofthesecon-activea
6、ndreactivepoweroutputcanbecontrolledusingcernsistheissueoflow-voltageride-through(LVRT).theconverters.Thispaperanalysestheextentofitsflexi-Windturbinesarenowexpectedtobehavelikeconventionalbility.Amodelofthevariousphysicalcomponentsandsynchronousgenerat
7、orsduringvoltagedips,remainingcon-theircontrollersisdevelopedintheMatlab/Simulinksimu-nectedandsupplyingreactivepowerduringandafterthelationenvironment.voltagediphasended.Inthispaper,amethodisproposed,whichallowsthisGridcodespecificationsinEuropeancount
8、riesnowwindturbinetechnologytoremainconnectedtothegridrequirethatwindturbinesmustbeabletoridethoughduringvoltagedipsmeetingandexceedingthevariousgriddisturbancesthatbringvoltagesdowntoverylowgridcoderequirementsinFig.l.Thekernelofthisso
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