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1。、、。SPWMPWM。2PWMA1。hi*aia△ia±0.5hHBCA、。PWM2。hiai*a0.5hVT1VT2。VT10.5hVT1VT2PWM*730070SPWMPWM。PWM。。TM464BResearchoncontrolandsimulationofPWMinverterwithcurrenthysteresislooptrackingZHAOZhuo-pengJIAShi-fengCollegeofAutomationandElectricalEngineering,LanzhouJiaotongUniversity,Lanzhou730070,ChinaAbstract:InviewoftheinsufficiencyoftraditionalSPWMvoltageinverter,adoptingcontrolmethodforPWMinverterwithcurrenthysteresislooptrackingisproposed.ThecontrolprincipleofPWMinverterwithcurrenthysteresislooptrackingisintroduced,andtheswitchingfrequencyismathematicallyanalyzed.Finallythemodelisconstructedandcarriedonthesimulation.Thesimulationresultsindicatethatthismethodisobviouslyeffective,thedynamicpropertyisgood,whichcanensurethegoodsinusoidalofcurrentwaveform.Keywords:currenthysteresislooptracking;inverter;switchingfrequency;widthofhysteresisloopVT1VT2AVD1VD2LEaiauHBCh-ia△iai*a11005—7277201102—0001—0320113321ELECTRICDRIVEAUTOMATIONVol．33No．220113321～3*3GS042-B25-035。-0.5h-+0.5h。3A。1EaL。Sa=1VT1VT2Sa=-1VT1VT2。①VT1VT2②。231Ldiadt=0.5uSa-EaEaASa=1ABSa=-1BCABdiadt=0.5u-EaL1BCdiadt=-0.5u-EaL23ABdiadt=0.5u-EaL=BG+GDAD3diadt=0.5u-EaL=h1+di*adt2+△t1di*adt姨△t14△t1=hL1+di*adt2姨0.5u-Ea+Ldi*adt5BCdiadt=-0.5u-EaL=BG-FGFC6diadt=-0.5u-EaL=h1+di*adt2-△t2di*adt姨△t27△t2=hL1+di*adt2姨0.5u+Ea+Ldi*adt8△t1+△t2=hLu1+di*adt2姨0.25u2-Ea+Ldi*adt29f=0.25u2-Ea+Ldi*adt2hLu1+di*adt2姨10①fh②ωEaf。Ea=010:f=0.25u2-ωLI*mcosωt2hLu1+ωI*mcosωt2姨11cosωt=0fmax=u4hL12·2·20112i00VT1+0.5uVT2-0.5uh△t1△t2iai*aωtωt2iBACDEFGhiai*aωt△t1△t23+-NORLogical1+-Logical2NOR+-NORLogical3S1S2S3S4S5S6ud300DirectvoltSubsystemUaoUboUco10.005+310.005+310.005+3AvoltTransferFcn1TransferFcn2TransferFcn3SineWave2SineWave1SineWave3Subtract1Subtract2Subtract3Relay1Relay2Relay3OutcurrentSettingcurrent20112·3·PWM。u=300Vh=0.1/0.2AL=5mHfmax=150/75kHz。。。PWM。4PWMPWMMatlab/SimulinkPWM4。PWMi*aiasinWave1、sinWave2、sinWave3。2A50Hz2π/3Subtract1、Subtract2、Subtract3Relay1、Relay2、Relay310Logical1、Logical2、Logical3。5PWMSubsystem。Product1-product9sak、sbk、scksak1、sak2、sak3s1-s6UdUao、UboUco。Ud=300VL=0.005HR=3Ω。6i*a。780.1AA9100.2AA。SPWM4PWM××+-××+-143652s1s4s3s6s5××+-s2Product1Product4Product3Product6Product5Product2saksbksck2+--Gain1sak12Gain2+--sak22+--Gain3sak31/61/61/6×××7Gain4Gain5Gain6Product7Product8Product9123UaoUboUcoud5PWM210-1-200.0050.010.0150.020.0250.030.0356i*a182010-10-161--30.058218+i*(0.130991)4MATLABPQIEEE3IEEE。1.M.:,2007.2.J.199658-12.3HWDommelWFTinney.OptimalpowerflowsolutionsJ.IEEETransactionsonPowerApparatusandSystems1968871:1866-1876.4DRajiiABose.AModificationtotheFastDecoupledPowerFlowforNetworkswithHighR/XRatiosJ.IEEETransactionsonPowerSystems,198832743-746.5RaoPSNagendra,RaoKSPrakasa,NandaJ.AnExactFastLoadFlowMethodIncludingSecondOrderTermsinRectangularCoordinatesJ.IEEETransPAS.1982,1019:3261-3268.6.PQJ.1996201:30-32.7.D.:2003.8.MATLABM.:2007.9.MATLABM.:2006.。5PWMMatlab/Simulink,PWMSPWM。1,.J.,2009,99:85-89.2,.PWMJ.,2004,221:83-85.3,.J.1995.1983-、。1964-、。210-1-200.0050.010.0150.020.0250.030.03570.1A200000.0050.010.0150.020.0250.030.035100-100-20080.1A210-1-200.0050.010.0150.020.0250.030.03590.2A200000.0050.010.0150.020.0250.030.035100-100-200100.3A2010-11-083!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!·18·20112