基于Simulink的智能车用微型电机闭环系统的仿真研究

1。、、。MatlabSimulink。Simulink。、、、、、、、。。22．1。A-Maxl61．2W7．2V4190rpm2．16mNm0．326A3．86mNm0．561A0．41Ω0．467mh6．88mNm／A23．1ms0．852gcm2。2ws=1/ceTd·Tm·s2+Tm·s+1Simulink200240Matlab。Simulink。SimulinkTM33ASimulationresearchofDCmotorcontrolsystemofsmartcarbasedonSimulinkZHANGHong-weiCAOZhi-gangSchoolofElectricalEngineeringShanghaiJiaotongUniversityShanghai200240ChinaAbstractByanalysingtheclosed-loopcontrolsystemofmicroDCservobrushmotortheclosed-loopcontrolsystemissummarizedindetailusingthetoolofMatlabSimulinksoftware.TheperformanceofDCservomotorisverifiedbysimulationtestmethodwhichmakesreadergraspitclearlyandprovidesomemethodstoanalyzeautomaticcontrolsystem.KeywordsmicroDCmotordualclosed-loopsystemSimulink1005—7277201101—0030—03201133130ELECTRICDRIVEAUTOMATIONVol．33No．1201133130～32=1/0.00168640.001139×0.0231·s2+0.0231·s+1Simulinkcontinuoustransferfun。simpowersystemsmachineDC。2．2。。。、、。、。1。。、、、。2。3。①②5％③5％。3．1Ce=Un-In·Rann=7.2-0.326×0.414190=1.6864×10-3V/r·min-3Tm=23.1ms=23.1×10-3sTd=LdRd=0.467×10-30.41=1.139×10-3s3.2、5V。MOSFETKS=1.05×Un5=1.05×7.25=1.512MOSFETTS=0.0017Sβ=5Idm=50.561=8.9126V/ATfi=0.01α=54190=0.00119V/r·min-1U*ASRACR=/pulseMT1Uns1Tfn.s+1+-12PIDASR1Tfi.s+1+-3PIDACRksTs.s+1+-1/RTl.s+145RTm.s+-1Ce.s67kiTfi.s+1ldlloadcurrentfeedbackkvTfn.s+1speedfeedback220111·31·SIMULINK·32·2011110.001s+1+-StepTransferFcn10.002s+1PIDTransferFcn1+-1.5120.0017s+1PIDTransferFcn2PIDControllerSaturationwithApproximateDerivative2PIDControllerSaturationwithApproximateDerivative2TransferFcn88.9120.002s+10.001090.01s+1TransferFcn4+-2.4390.00114s+1+-K-1sK-currentTransferFcn30.1ConstantspeedGain1IntegratorGain2Tfn=0.013．3ACRIPI。WACR=Kiτis+1τisIτi=0.0037sKi=0.0047。ASR。IIPI。WASR=Knτns+1τnsIIτn=0.087sKn=24.88。PI。4Simulink3。4。5A-Max。MatlabSimulink、。1．Matlab7．0/Simulink6．0M．2007.2．MatlabM．2003.3．M．1988.4．MatlabJ.200610.1979-。3SimulinlkSpeedCurrent50004000300020001000005101520Tineoffset0Tineoffset00.50.40.30.20.10051015204Simulink2010-10-09