基于MATLAB的单相全控整流电路功率因数测定

321201001J.WuhanInst.Tech.Vol.32No.1Jan.2010:2009207213:(19802),,,,.:.:167422869(2010)0120090203MATLAB,(,430074):,,MATLABSimulink,.:;;MATLAB;:TM932:Adoi:10.3969/j.issn.167422869.2010.01.0260,()(IGBT),.,[1].,.,.(),..MATLABSimulink.11.1,(),(P)(S),=P/S.u(t),i(t),T,UI,P=1TT0u(t)i(t)dt(1)S=UI(2)=PS=1TT0u(t)i(t)dtUI(3)1.2,,;,,[2].P=UI1cos(3)=PS=UI1cosUI=I1Icos=cos(4)(4):I1,I,,cos,.,,=cos.i(t),i(t)=n=1ansin(nt)+n=1bncos(nt):an=120i(t)sin(nt)d(t)bn=120i(t)cos(nt)d(t),n.n,InI:In=12a2n+b2nI=I21+I22++I2n1,:MATLAB91=I2-I21I2100%(4)=I11cos=cos1+2(5),,[3].MATLAB,.21.,triggermodule;harmonicanalysis;VT1VT2VT3VT4;@,Fun;.1Fig.1Emulationalmodulefortheuseofmeasurementofpowerfactor2.1TriggermoduleTriggermodule2.2TriggermoduleFig.2Emulationalmoduleoftriggermodule.Relay,[4],;RateLimiter,.In1;Relay[5],RateLimter,In2[6],Relay.,.2.2(5),3.3Fig.3Emulationalmoduleastoanalysisofpowerfactor:(Fourier)(TotalHarmonic).,Fourier;TotalHarmonic.(adder)(Gain)(TrigonometricFunction)(Fun)(Product)(Terminator).[7]:FourierFundamentalFrequency50,Harmonicn1(),TotalHarmonicFundamentalFrequency50,.2.34306090120,,.,,,,,.92324()Fig.4Powerfactorsaccordingtodifferentphase2shiftingangles()3,,MATLAB,,,./,,.:[1],,.MATLAB[J].,2006,(12):34237.[2],.LLC[J].,2009,31(5):80283.[3],.[M].:,2000.[4].MATLAB[M].:,2006.[5].MATLAB[M].:,2006.[6],.D2S[J].,2009,31(1):73275.[7],,.[J].,2009,31(9):59261.MeasurementbasedonMATLABofpowerfactoroffullycontrolledsingle2phasecommutationCUIShi2jie,WANGJian2hua(KeyLaboratoryofPlasmaChemistry&AdvancedMaterialsofWuhanInstituteofTechnology,Wuhan430074,China)Abstract:Thisarticleprimarilyexpatiateshowtorealizefullycontrolledsingle2phasecommutation,andexpoundtheprincipleofpowerfactormeasurement.Atthesametime,weshowyouthemoduleandthemethodofhowtoutilizeMATLAB/Simulinktorealizethemeasurementof.Attheendofthesis,weproposetheresultofmeasurementofPFaccordingtodifferentphase2shiftingangle.Keywords:single2phasecommutation;powerfactor;MATLAB;measuringmethods: