基于矩阵变换器的永磁同步电机矢量控制系统

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1、南京航空航天大学博士学位论文基于矩阵变换器的永磁同步电机矢量控制系统姓名：葛红娟申请学位级别：博士专业：电机与电器指导教师：周波20061101基于矩阵变换器的永磁同步电机矢量控制系统大小，提出了合理选用零矢量以降低电机共模电压幅值的方法。并得出为了尽量减少开关次数，零矢量、输入电流矢量和输出电压矢量放置顺序应该遵循的原则。最后，本文设计并实现了以DSP和CPLD为控制单元的MC-PMSM矢量控制系统平台，利用该平台验证了本文方法的可行性和正确性，并为进一步研究提供了可靠的实验条件。关键词：矩阵变换

2、器，永磁同步电机，矢量控制，电流滞环控制，空间矢量调制，共模电压II南京航空航天大学博士学位论文AbstractPermanentmagnetsynchronousmotor(PMSM)hasfoundwidespreadapplicationsinthefieldsofnationaldefense,industry,aviationandship-building,etc.,withitssimplestructure,highpowerdensityandfastdynamics.Theevo

3、lutionofvectorcontroltechnologyhasenabledPMSMtopossessasgoodperformanceasthatofDCmotorsandbecomethepreferenceofmoderndrivesystems.AlsoAC-ACmatrixconvertersholdgoodpotentialitiesinACdrivesystemsowingtoitsunitypowerfactor,withoutbulkycapacitors,andsinuso

4、idalinputcurrents.Therefore,thecombinationofthePMSMvectorcontrolandthematrixconverterhasrecentlyarrestedsubstantialattentionsfromscholarsbothathomeandabroad.Thepresentpaperpresentstheresearchonthevectorcontrolsystemofthematrixconverter-permanentmagnets

5、ynchronousmotor(MC-PMSM)basedontwomodulationstrategiesofcurrenthysteresis-loopcontrolanddoublespacevectormodulation,andintroducestheoreticalanalysesandsimulationresearchabouttheimplementationmethod,theinputcurrentqualityandthespeedregulatingperformance

6、ofthesystem.TheMC-PMSMsystemprototypeisdesignedandimplemented,inwhichthedigitalsignalprocessor(DSP)andthecomplicatedprogrammablelogicdevice(CPLD)actasthecontrolunits.Thenexperimentsarealsoperformed.Maincontentsconcernedinthepaperareasfollows:Theswitchs

7、tatecombinationsofMC-PMSMvectorcontrolsystem,whichisbasedeitheronthecurrenthysteresis-loopcontroloronthedoublespacevectormodulation,areanalyzedatfulllength,providingbasisforthedesigningofthecontrolsystem.Theexperientialformulaisderivedforcalculatingthe

8、current-loopwidthoftheMC-PMSMsystembasedonthecurrenthysteresis-loopcontrol.Thereasonablecurrent-loopwidthdeterminedbycalculationandsimulationanalysisresultsingoodinputcurrentwavesandspeed-regulatingcharacteristics.III基于矩阵变换器的永磁同步电机矢量控制系