Design and Analysis of a Novel Wind-power.pdf

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1、DesignandAnalysisofaNovelWind-powerPermanentMagnetGeneratorwithOpposite-rotationDualRotorsFenggeZhang,YugeGao,JinhuaChenSchoolofElectricalEngineering,ShenyangUniversityofTechnology,ChinaE-mail:gaoyuge@163.comAbstract—InordertoimprovethewindenergyutilizationTheinnerandoutersurfacesofthest

2、atorareslottedevenlyfactorofwind-powergenerationsystem,anewtypeofandsettedtoroidalwindings.ThegeneratorcanbebrushlessPermanentMagnetSynchronousGenerator(PMSG)withduetothewindingsonthestator.TheoutersurfaceoftheOpposite-rotationDualRotors(ODR)hasbeenproposedinthisinnerrotorandtheinnersurf

3、aceoftheouterrotoraremountedpaper,mechanicalstructureandoperationmechanismhavebeenbyrareearthmagnets.Themechanicalinputoftheinnerrotordiscussed.MagneticfieldhasbeenanalyzedbyFEMandcircuitmethod.Magneticflux,fluxdensityandEMFarecalculatedtoandtheouterrotorisconcentrictype[1].verifytherati

4、onalityofthegeneratordesign.ThecomputationalThisgeneratorcanberegardasthesuperpositionofainnerresultsconfirmedthefeasibilityofthewind-powerPMSGwithrotorPMSGandaouterPMSG,andusesacommonstator.Opposite-rotationDualRotors.Theinnerrotor,statorandtheouterrotorareseparatedbyinnerairgapandouter

5、airgapmechanically,butcoupledbyI.OPERATIONMECHANISMOFWIND-POWERPMSGWITHinnermagneticfieldandoutermagneticfield[2].ODRC.TerminalConnectionModeoftheToroidalWindingsA.PhysicalModelofthePMSGwithODRThewindingsofPMSGwithODRaredifferentfromThephysicalconstructionofthePMSGwithODRisnormalgenerato

6、r,whichisshowninFig.3.showninFig.1.Fig.3.Terminalconnectionmodeofthetoroidalwindings.Fig.1.OperationschematicofthePMSGwithODR.Byshiftingtwophases(phaseBandphaseC)windingsThebladeanglesofthetwowindwheelsarecontradictory,betweenupperlayeranddownlayer,wheretwosetsofwhichcanensurethetwowindw

7、heelsrotateinoppositewindingsphaseorderareopposite.Thepermanentmagnetsofdirectionswhenwindisindefinitedirectioninspace.Thetwoinnerrotorandouterrotorrotateintheoppositedirection,windwheelscanbemountedinonesideorbothsidesoftheinducedelectromotiveforceisgeneratedinthetoroida