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1、Proceedingsofthe29thChineseControlConferenceJuly29-31,2010,Beijing,ChinaADecouplingControlStrategyofIPMMachineAccountingforCompensationofCross-saturationBasedonSVPWMTechnique12WANGAimeng,SHIWenjuanSchoolofElectricalandElectronicEngineering,NorthChinaElectricPowerUniversity,Baodi
2、ng,Hebei071003,P.R.China1.E-mail:aimeng668@yahoo.com2.E-mail:ishiwenjuan@126.comAbstract:Inthispaper,theevaluationofmagneticsaturationeffectsinaninteriorpermanentmagnetsynchronousmotor(IPMSM)overtheentireoperationrangeincludingconstanttorqueregionandinflux-weakeningrangeispresen
3、ted.ThedecouplingcontrolmodelforIPMPMwithmagneticsaturationcompensationbasedonSVPWMmethodisestablished.Uponthecomparisonthemodelwithsaturationcompensationandoneswithoutsaturationcompensation,thesimulationresultsshowthatperformanceofthedecouplingcontrolsystemwithsaturationcompens
4、ationismorestableandmoreaccuratethanthatofwithoutcompensationinconstantpowerregionespeciallyoperatingatahigherspeed.Andthedecouplingcontrolsystemwithsaturationcompensationimproveseffectivelythesystemfollowing-upperformance,robustnessandthecontrolaccuracy.Keywords:DecouplingContr
5、ol,CompensationofMagneticSaturation,SVPWM,IPMSM3(2)1INTRODUCTIONTpiLLen=+⎡⎤⎣⎦ψfq()d−qidiq2Interiorpermanentmagnet(IPM)machineismostlyusedWhereid,iqarethed-andq-axescomponentsofarmatureinelectrictractionapplicationbecauseitcanexhibitahighcurrent,ud,uqarethed-andq-axescomponentsof
6、terminal[1-3]torquedensityandhasawideconstantpowerregion.voltage,Ψfarethepermanentmagnetfluxlinkage,Ld,LqareSincetheeffectiveairgapintheIPMmotorissmall,andthed-andq-axesstatorinductances,pnisthenumberofpoletheeffectsofmagneticsaturationandcross-saturationarepairsandp=d/dt.[4]dom
7、inant,whichinfluenceitscontrolperformances.2.2ControlStrategiesofIPMSMMostlypreviousworkreportedintheliteraturehasfocusedoncrosssaturationmodelandsaturationimpactsonIPMIntheconstanttorqueregion,thereluctancetorque[themachinedrives[5-8].Paper[9]reportsamethodoffullysecondtermin(2
8、)]developedbysaliencyisexploiteddecouplingthepr
