單相全橋逆變電路的移相仿真實驗報告

1、基于MATLAB的單相全橋逆變電路的移相仿真實驗報告一、實驗名稱基于MATLAB的單相全橋逆變電路的移相仿真實驗二、實驗?zāi)康?. 對單相全橋逆變電路的移相進行參數(shù)設(shè)計，并運用simplorer7.0進行仿真，學習Matlab的動態(tài)分析。2. 掌握單相全橋逆變電路的移相的工作原理及特點，改變脈沖寬度，觀察輸出電壓和電流的變化情況。三、實驗平臺Matlab/simulink/simpowersystem三、實驗原理單相全橋逆變電路的移相原理圖如下所示1.UoUolm=4Ud=1.27UdUo=(sint+1sin3ot+1sin5ot+)35單相全橋逆變電路的移相仿真電路圖如下所示Continuo

2、uspowergui丄JosfEJjMosfet3lOvPulseGeneratorPulseGeneratorPulseGenerator2puiMosfet4Generator3Scope2Mosfet2四、實驗內(nèi)容仿真參數(shù)設(shè)計圖1-1直流電壓參數(shù)du1e&typedeterminEMthecoinputationaltechniqueused.rime-basedisreconuneridedforusewithavariablestepsolv&rjufhileSample-basedisreccnuiteridedfotusevitha.fixedstepsolver

3、orwithinadiscreteportionofamodejsing：avariablestupisolverParametersPulsetype:TimebasedvTimmCt):Usesimulationtim.ev止mplitude:Period(secs):.02PulseVidth(Sofperiod):50Phasedelay(secs):z圖1-2脈沖0參數(shù)3ulsetyped&terminesthecomputa.tiotaltechrLiqueused.rime-basedisreconunendedforsolverjwhileSample-basedzls

4、:is&d.stepsolverorUFithirLaisirigavariablewtmpsolver.use屮ithavariablerecoJiunended£orusediscretepartiotAofstepwithaa.JiodeParam&tersPulsetype:Time(t):1圖1-3脈沖2參數(shù)Amplitude:Period(secs):0.02PulseWidth(35ofperiod):50Phasedelay(sees):0.01JIni:erpretvectorparametersas1-Drrr圖1-4脈沖3參數(shù)Lime-based

5、isrecomnenilecltoruseWLtiiawarlat丄esolvetjurhileSajnple-basedisixed.stepsolverorwithina.isirigavariablestepsolverrecomjn&rLdedforusediscreteportzLon.ofstepwithaamodeParametersAmplitude;圖1-5脈沖4參數(shù)匕-a.02Pulsewidth(nim'berofEamples):50Phasedely(nujuberofsamples):0.01+60*0.02/360Sampletiiw:I卜OK|C

6、ancel|Help圖1-6mosfet管參數(shù)圖1-7示波器參數(shù)圖1-8multimeter參數(shù)圖1-9各mosfet管的電壓波形圖1-10負載電壓、電流波形U0=0.0001313VUolm=12.7VUol=9V當脈沖寬度為90時，波形如下：U0=0.0006872VUolm=12.7VUol=9V當脈沖寬度為180時，波形如下：U0=-0.0006872VUolm=12.7VUol=9V頻譜圖如下所示：SignaltoanalyzeDiphyselectedsignal("iDiplsFFTwindowSlsctdsignal:6cycles.FFTv/indaw(inrad)

7、:1cycles0.020.04O.OG0.08Times)FFTanalysisFundamiental(50Hz)=44253THD=92.61%70-E-EmluEpuriLL七淖)bes2004006008001000Frequency(Hz)90移相頻譜圖Dephyet/le:FraquancyBMifi：HertzMaxFrsquency(Hz):1GQC-Close.AvailablesignalsSlructure:|Signaltoanalyze-aDisplayselsdedsignal'JDisplayFFTwIndiawSelectedsignal:5cycles.FFTwindovr(in亡1eyeIdfc_acInput:i叩bt1Sanainumbe匚1TiFFTwindowiFFT胃n自ly兮i兮Fundamental(5DHz)=6.247?THD=48.&2%Fundamentalfrequsney(He):80(ralualEEp匚nLL浜)BrazGo402050iFFTsettingsDsplaystyIs:Batrs-lativetatundamenlal)Basevalue:|l.O|Frequencyaxis:HertzvMaxFrequencyHe):DiatJ