基于PWM斩波的交流调压系统设计

SYSTEMAPPLICATIONTHEWORLDOFINVERTERSTheDesignofACVoltageRegulatorSystemBasedonPWMChoppedChengShunzuYangWengangAbstract:Withthedevelopmentofhighpowerelectronicdevices,high-performanceswitchmodeACvoltageiswidelyused.IntheintroductionofACvoltageregulatorprincipleandchoppedACvoltageregulatorcircuit,thesystemusesPWMsignalofstc12c5608admicrocontrollertocontrolIGBTswitchtubebydrivingcircuit.Finally,thesimulationandexperimentalwaveformsareprovided,theresultsshowthattheACvoltageregulatorbychoppedhasgoodadvantageofeasyfilter,goodoutputvoltageandcurrentwaveforms.Keywords:voltageregulatorPWMMCUIGBT[1]PWMIGBT1S1S2S1S2kc=T/Tsuo(1)1)(tE122101)(SSSStE(2)tUtEuosin2)((3)Et1)cos(sin2)(nnsnnnDtE(4)D=tonl/Tss=2p/Tsn=np/TstonlS1tonlS143]})sin[(]){sin[(sin21sin21nsnsnnotntnnUtUDu(5)5uoLCUDUO2(6)DUUDAv22(7)D[2][3][4][5]212210)(SSSSuutEuoIGBT1VD1IGBT2VD2IGBT3VD3IGBT4VD4L2C2IGBT3IGBTGAL16V8GALPWMIGBTIGBTIGBTIGBTIGBTIGBT20usIGBT20usIGBT(1)STC12C5608ADPWMPWMPCA(2)IGBTIGBTRCDPCA/CCAPMnSYSTEMAPPLICATIONTHEWORLDOFINVERTERS(3)GALIGBTIGBTMATLAB2311V50Hz20KHzD=0.54UiUoLCL1=L2=3mHC1=5uF,C2=4uF705kHzIGBTIKW40N120T1200V,40AD=0.55D=0.544V29.2V660V0VIGBTMOSFETPWM1987-114SYSTEMAPPLICATIONTHEWORLDOFINVERTERSDSP28121988-100