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1、708IEEETRANSACTIONSONINDUSTRYAPPLICATIONS,VOL.48,NO.2,MARCH/APRIL2012PowerElectronicsConvertersforWindTurbineSystemsFredeBlaabjerg,Fellow,IEEE,MarcoLiserre,SeniorMember,IEEE,andKeMa,Member,IEEEAbstractThesteadygrowthofinstalledwindpowertogethercontrol.Thetechnologyusedinwindturbine
2、swasoriginallywiththeupscalingofthesinglewindturbinepowercapabilityhasbasedonasquirrel-cageinductiongeneratorconnecteddirectlypushedtheresearchanddevelopmentofpowerconverterstowardtothegrid.Powerpulsationsinthewindwerealmostdirectlyfull-scalepowerconversion,loweredcostprkW,increase
3、dpowertransferredtotheelectricalgridbyusingthistechnologyasthedensity,andalsotheneedforhigherreliability.Inthispaper,powerconvertertechnologiesarereviewedwithfocusonexistingspeedisfixed(limitedsliprange).Furthermore,nodynamiconesandonthosethathavepotentialforhigherpowerbutwhichcontr
4、oloftheactiveandreactivepowerexistsexceptforahavenotbeenyetadoptedduetotheimportantriskassociatedfewcapacitorbankswhichensuredunitypowerfactoratthewiththehigh-powerindustry.Thepowerconvertersareclassifiedpointofcommoncoupling.Asthepowercapacityofthewindintosingle-andmulticelltopolog
5、ies,inthelattercasewithatten-turbinesincreases,regulatingthefrequencyandthevoltageintiontoseriesconnectionandparallelconnectioneitherelectricalormagneticones(multiphase/windingsmachines/transformers).thegridbecomeevenmoreimportant,andinthelastdecade,Itisconcludedthatasthepowerlevel
6、increasesinwindtur-ithasbecomenecessarytointroducepowerelectronics[6]asbines,medium-voltagepowerconverterswillbeadominantpoweranintelligentinterfacebetweenthewindturbineandthegrid.converterconfiguration,butcontinuouslycostandreliabilityarePowerelectronicsischangingthebasiccharacteri
7、sticoftheimportantissuestobeaddressed.windturbinefrombeinganenergysourcetobeinganactiveIndexTermsMultilevelconverters,powerelectroniccon-powersourceforthegrid.Theelectricaltechnologyusedinversion,renewableenergy,semiconductordevicereliability,thewindturbineisnotnew.Ithasbeendiscuss
8、edforseveralwindenergy.dec
