simulink仿真演示外文翻译

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1、英文原文SimulinkDemosSimulinkisatoolformodeling,analyzing,andsimulatingphysicalandmathematicalsystems,includingthosewithnonlinearelementsandthosethatmakeuseofcontinuousanddiscretetime.AsanextensionofMATLAB,Simulinkaddsmanyfeaturesspecifictodynamicsystemswhileretainingallofgeneralpurposefu

2、nctionalityofMATLAB.RundemosforotherSimulinkproductsyouhaveinstalled.TrythesedemostoseewhichSimulinkproductsmightbeappropriatefortheworkyoudo.NotethatthisisacomprehensivelistofSimulinkproducts.YourparticularinstallationofMathWorksIntheContentspane,foreachSimulinkproduct,seedocumentati

3、onExamplestoviewmoresamplecodeyoucanrunorcopy.Three-phaseThree-levelPWMConverter(discrete)Thisdemonstrationillustratessimulationofa3-phase,3-levelinverterandDiscrete3-phasePWMGenerator.ItalsodemonstratesharmonicanalysisofPWMwaveformsusingthePowergui/FFTtool.CircuitDescriptionThesystem

4、consistsoftwothree-phasethree-levelPWMvoltagesourceconvertersconnectedintwinconfiguration。TheinverterfeedsanACload(1kW,500var60Hz208Vrms)throughathree-phasetransformer.Harmonicfilteringisperformedbythetransformerleakageinductance(8%)andloadcapacitance(500var).Eachofthetwoinvertersuses

5、theThree-LevelBridgeblockwherethespecifiedpowerelectronicdevicesareIGBT/Diodepairs.Eacharmconsistsof4IGBTs,4antiparalleldiodes,and2neutralclampingdiodes.Theinverteriscontrolledinopenloop.PulsesaregeneratedbytheDiscrete3-PhaseDiscretePWMGeneratorblock.ThisblockisavailableintheExtras/Di

6、screteControlBlockslibrary.ThisPWMgeneratorormodulatorcanbeusedtogeneratepulsesfor3-phase,2-level,or3-levelconvertersusingonebridgeortwobridges(twinconfiguration).Inthisdemo,thePWMmodulatorgeneratestwosetsof12pulses(1setperinverter)atP1andP2outputs.Openthe'Discrete3-phasePWMGenerator'

7、menu.Noticethatthegeneratorcanoperateeitherinsynchronizedorun-synchronizedmode.Whenoperatinginsynchronizedmode,thecarriertriangularsignalissynchronizedonaPLLreferenceangleconnectedtoinput'wt'.Insynchronizedmode,thecarrierchoppingfrequencyisspecifiedbytheswitchingratioasamultipleoftheo

8、utput