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1、ResearchonFaultAnalysisandDiagnosisofPMSMinHEV123HaifangYu,ZhiqiangLiu,ShumeiCui1Dept.ofElectricalEngineering,ChangchunUniversityofTechnology,Changchun,China2ChinaFAWGroupCorporationR&DCenter,Changchun,China3Dept.ofElectricalEngineering,HarbinInstituteofTechnology,Harbin,ChinaE-mail:haifan
2、gyu@gmail.comAbstract—Accurate,reliableandfasttroubleshootingforinductancebetweeneachloopandself-inductionparameters.motordrivesystemusedinhybridelectricvehicle(HEV)isanSincethemagneticcircuitofthemotorconsistsofairgapandeffectivewaytoimprovethevehicle’sperformance.Todiagnoseferromagneticm
3、aterialswhichconcernedwiththesaturationsomefaultsofPMSMinHEV,afinite-elementmodeloflevel,theparameterscalculationiscomplex,especiallyforpermanentmagnetsynchronousmotor(PMSM)withpartialmotorparametersinpartialfailures.Inordertosolvethisdemagnetizationfaultsorstatorinterturnfaultswasestablis
4、hed.Faultcharacteristicswereextractedfromvoltageorcurrentproblem,thefaultcharacteristicparametersaresimulatedandfailuresignals,whichcanprovidereferencesforsamefaultsanalyzedduringthemotorrunningunderfaultstatesthroughdetection.establishingthefiniteelementsimulationmodelsoastorealizethefaul
5、tdiagnosisforthemotorwithlocalfailuresinI.INTRODUCTIONthissection.APMSMiswidelyusedinHEVduetoitshighpowerAmodelof20kWPMSMwithbuilt-intangentialmagnetdensityandhighefficiencyforlimitedspaceinvehicles[1,2].pathisbuilt,asshowninFigure1.Ithas8polesand48slots.AsoneofthemaindrivesourcesinHEV,the
6、PMSMneedstoThenumberofturnsis24for1-phase.Theresistanceof1-start,stop,accelerateanddeceleratefrequentlywithhighphaseis0.013Ωandtheleakageinductionis0.0061mH.torqueatlowspeedorlowtorqueathighspeed,aswellastoshiftspeedwithinawiderangewhichresultsinPMSMfaultsoccurrence.Hencetheoperatingstates
7、ofPMSMneedtobemonitoredaswellasitsfaultcharacteristicsarenecessarytobeinvestigated.AccordinglyitisvitaltodiagnoseandeliminatethesefaultsofthePMSMinHEVquicklythroughdetectingtherelatedfaultcharacteristics.AmotorfaultdetectionmethodforHEVshouldtobesimpleandeffec
