矩陣變換器驅(qū)動永磁方波電動機控制策略研究.pdf

1、南京航空航天大學(xué)碩士學(xué)位論文矩陣變換器驅(qū)動永磁方波電動機控制策略研究姓名：姜田貴申請學(xué)位級別：碩士專業(yè)：電機與電器指導(dǎo)教師：周波20090301矩陣變換器驅(qū)動永磁方波電動機控制策略研究iiAbstractPermanentmagsquarewavemotsaretraditionallycontrolledbystardpulsewidthmodulation(PWM)voltagesourceinverters(VSI).Compar

2、edtothePWMVSIwithdioderectificationstagethematrixconverter(MC)providessinusoidalinputwavefmscontrollableinputpowerfactbidirectionalpowerflowamecompactdesign.TheACACdirectcontrolofapermanentmagsquarewavemotcanbeimplemente

3、dwhileamatrixconverterisapplied.Itcaneffectivelyreducetheharmonicpowerofthewk.The“allsiliconcomposition”topologycanextendthelifeoftheconverteritisinfavoftheintegrationofmotdrivesystem.Thebasicprincipleofmatrixconverterpe

4、rmanentmagsquarewavemotwereintroducedfirstly.Theninlightofthetrapezoidalbackelectromotivefcesquarephasecurrentofpermanentmagsquarewavemottwomodulationstrategiesofmatrixconverterswhichusedtodrivepermanentmagsquarewavemots

5、wereproposedbasedontheindirectequivalentmodelofmatrixconverters.Thedetailedmodulationtheyofvirtualrectifierstagevirtualinverterstagewereanalyzedrespectively.Thenthemodulationmethodftheninebidirectionalswitchedmatrixconve

6、rtercanbeobtainedbymergingthemodulationsofthesetwostages.Indertoenhancetheperfmanceofthesystemaclosedloopmethodfmatrixconverterdrivingpermanentmagsquarewavemotwasproposed.Throughtheamendmentofthemodulationindextimelyther

7、egulationofoutputvoltagecanberealized.thentheadjustablespeedcanbeimplemented.ThevaliditythefeasibilityofthecontrolstrategyproposedwereverifiedbysimulationsofthebuiltMATLABSIMULINKmodelofthesystem.Experimentsoftheclosedlo

8、opsystemfurtherverifiedthecontrolstrategymentioned.Preliminaryexperimentresultsshowthatthesystemcanachieveboththeabovefundamentalfrequencythedownfrequencyoftheoutput.Theinputcurrentofthesystemissinusoidalwhiletheoutputcu

9、rrentisrectangular.Finallythepracticalimplementationofmatrixconverterwasdiscussedamatrixconverterprototypewasbuilt.ThecontrolmethodwascarriedoutinDSPCPLD.Thecommonemitterbidirectionalswitchcellarrangementwasconsistoftwod

10、iodestwoIGBTsconnectedinantiparallel.Thehardwarecompositiondesignexpressionsofsoftwareofthewholesystemweregivenwhichprovidesatechnicalbasisfthefurtherpracticalstudyofmatrixconverter.Keywds:Matrixconverter(MC)Permanentmag