電力電子實驗三

電力電子實驗報告實驗題目：三相橋式正弦波脈寬調(diào)制變頻電路仿真實驗?zāi)康模菏煜atlab的仿真集成工具Simulink和電力系統(tǒng)SimPowerSystems的功能和使用方法，鍛煉該軟件的使用能力，總結(jié)使用技巧和方法，提高使用水平；熟悉三相橋式正弦波脈寬調(diào)制變頻電路結(jié)構(gòu)原理；2.熟悉SimPowerSystems的功能模塊，靈活運用，舉一反三練習(xí)。實驗要求：熟悉Matlab的電力系統(tǒng)仿真集成工具SimPowerSystems的使用方法；獨立建立仿真模型；進(jìn)行參數(shù)設(shè)置；獨立完成仿真實驗內(nèi)容。實驗內(nèi)容及步驟：一)新用到的元件提取路徑：SimPowerSystems/ExtraLibrary/DiscreteControlBlocks/Discrete1-phasePLLSimPowerSystems/ExtraLibrary/DiscreteControlBlocks/Discrete3-phasePWMGeneratorSimPowerSystems/ExtraLibrary/DiscreteControlBlocks/Discrete3-phaseProgrammableSourceSimPowerSystems/PowerElectronics/Three-LevelBridgeSimPowerSystems/ExtraLibrary/Three-PhaseLibrary/Three-phaseLinearTransformer12-terminalsSimPowerSystems/Elements/3-PhaseParallelRLCLoadSimulink/SignalRouting/BusCreatorSimPowerSystems/Connectots/BusBar(thinhoriz)

Simulink/Sinks/Terminator模塊簡介：Terminator終端設(shè)備BusCreator用于將多路信號在同一個示波器界面上顯示。雙擊將"Numberofinputs"修改為1 "3”示波器scope由于本次試驗的模型將會輸出大量的脈動波形，這時需要修改示波器參數(shù)：雙擊示波器，然后再單擊囪圖標(biāo)，打開示波器修改參數(shù)。單擊Datahistory（數(shù)據(jù)歷史）將Limitdatapointtolast（極限數(shù)據(jù)點）修改為“500000”下一個實驗也是這樣修改，將不在重復(fù)。Vdc^2DDBusBsr「Disaete3-phaseProgrsmmablES-curoeTerminatorTerminatorlDiscreteVirtualF'LLDiscrete3-phasePWMGenerate!Vab_lc3d5參數(shù)修改:DiscreteVirtualPLL參數(shù)設(shè)置Discrete3-phaseProgrammableSource參數(shù)設(shè)置Bridge）參數(shù)設(shè)置一樣。數(shù)學(xué)模型圖中的兩個（Three-LevelDiscrete3-phasePWMGeneratorThree-LevelBridge參數(shù)設(shè)置IlrErphaseLinearTransfonierl^tEminalsSasklQi低)Thisbloc^iFiplefientstlree5]ngLe~pt：i5etvo~viDiingtrajufraiiers.AUYiadiagtanindK：ire觥作我ibk.TatEnetaa[Hrerphiseraidpwer(VA)血敗咨ijz)]|[：：：0：0：|hmhng1：[phaseroltagsQtns]Efjra^：|[2C:J：2C.J:Hi血心:[pkiSHtlt繆fhrn§]KW3鉤]：|[^S.nrllS：0.：010.：<Ih眺"nnghr皿h:[Hn血)In魄]:|[l：020J]

-3-phaseparallelRLCload(mask)(link)ThisblockimplementsatlLree-phasepmalleiRLCloadconnectedinYconfipneation3withtherieutr：=ilcoriTiectedtothegruijiliI.Eachphaseconsistofonep：=LrallelRLCloadblockconiLectedbetweenthephaseinput：=LrultheCiUiLd.-P：=Lr：=iiTiHters—UomirL：=ilphase-phaEevoltage(VrinE):|208UomirL：=il￡rpqueuey(Hz):|50Ttn-ee-phaseactivepowerF(W)：|1000Ttcfee-phaseirLiiuctivereactivepowerQI(var)I5ItLfee-phasecapacitivereactivepowerQ>:(var)|5LIUOK C：elTlCh1 Help三相線性12終端變壓器三相線性12終端變壓器RLC并聯(lián)負(fù)載參數(shù)設(shè)置參數(shù)設(shè)置-phasePWMGenerator-phasePWMGenerator點擊示波器Scope可以看到三相正弦波脈寬調(diào)制變頻電路在三角載波信號和正弦信號作用下的直流輸入與交流輸出之間的波形。分析實驗結(jié)果：設(shè)置仿真時間為：0.1s、采用ode23s(stiff/Mod.Rosenbrock)算法。我們可以通過雙擊：Disc