基于MATLAB的三相半波可控整流電路仿真實(shí)驗(yàn)報(bào)告

1、基于MATLAB的三相半波可控整流電路仿真實(shí)驗(yàn)報(bào)告一、實(shí)驗(yàn)名稱基于MATLAB的三相半波可控整流電路仿真實(shí)驗(yàn)報(bào)告二、實(shí)驗(yàn)?zāi)康?.對三相半波可控整流電路進(jìn)行參數(shù)設(shè)計(jì),并運(yùn)用simplorer7.0進(jìn)行仿真,學(xué)習(xí)Matlab的動態(tài)分析.2.掌握的三相半波可控整流電路工作原理及特點(diǎn),改變脈沖移向角,觀察輸出電壓、電流和晶閘管的電壓、電流的變化情況.3.觀察在電阻負(fù)載和阻感負(fù)載時,輸出電壓、電流和晶閘管的電壓、電流的變化情況.三、實(shí)驗(yàn)平臺Matlab/simulink/simpowersystem四、實(shí)驗(yàn)原理三相半波可控整流電路(電阻負(fù)載)原理圖圉1三相羋波可檸整漪電揩他理圖公式原理(1)4一即時.貝

2、載電流連續(xù).說4=2%6?、5n.d(Gjf)=L17U、cosur當(dāng)utf1時,%為最大,Ud=l/=JJ7U,9)331時.負(fù),電流斷坡晶閘管導(dǎo)通角減小,此時柏t7j=-匚rV2Z7a鼻ind(H)=0,675C/J1+cos(ff/6+)L7if5尋.當(dāng)口=15(T的,ud=n仇我也流的甲均色4為f衛(wèi)1RMl于晶網(wǎng)售北交梓工作的.流過品網(wǎng)管的T均電流為(3)變壓器二次線電壓峰值U URM= =V V/ /6 6U2=2.45U2變壓器二次相電壓峰值U UFM=V/2U2三相半波可控整流電路阻感負(fù)載原理圖三相半波可控整流電路阻感負(fù)載公式原理1.%小于等于 30 時整流電壓波形與電阻負(fù)載相同

3、2 .A 大于 30 時,Ud=1.17U2COS-3.l2=IvT=d=0.557Id4.IVT(AV)=衛(wèi)=0.368ld1.57仿真原理圖ContinuouspowerguiHLPulseGenerator一-ofULThyristorPulseGenerator1ThyristorlACII-XPulseGenerator2QMHV2AC1五、實(shí)驗(yàn)內(nèi)容仿真參數(shù)設(shè)計(jì)Thyristor2-sScopeScope1Scope3RLScope2電源參數(shù),頻率50Hz,電壓100v,其相限角度分別為0、120、-120.如圖1、2、3所示麻Bl5kParameters;A.C2A A Volta

4、geVoltageSourceSource(jn9sk)(jn9sk)(link)(link)IdealsinusoidalACIdealsinusoidalACVoltageVoltagesource.source.PaiPaianetersanetersPeaiamplitude(V)Peaiamplitude(V): :100100PKasePKase(亞的：120120FrFre eqtiencyqtiency(H(HE E) )：5050Sa45letiiiLe:0 0NoneNoneOKOKCancelHelpCancelHelp圖2圖3脈沖參數(shù),振幅3V,周期0.02占空比1.麻

5、時相筵退分別為(a+30)/360*0,02-(ci+120+30)/36W0.02,(a+240+30)/360ML0九如圖3,國國5所示endendPulsedtteEininesthecoiRputationaltechniqueused.PulsedtteEininesthecoiRputationaltechniqueused.Tinebasedisrecoiunendedforusemithavariablestepsolvetjv4iileSanpl$-basesolvetjv4iileSanpl$-based d二 wHecHec口即匕ndnd白dforusewithdforu

6、sewitha a,fixedstepstepEQEQIIBUOBUOrwithin,rwithin,a adlscretdlscrete epertpertLonLonofofaJILOJILOdeusingavadeusingavariablestepriablestepsolver.solver.FarajaetersFarajaetersPulsetype:Pulsetype:TintTintbasedbasedTimeTimeCt);Ct);UsegijmjlatiwnlimeUsegijmjlatiwnlime- -AmplAmpliiude:iiude:1FeriodFeriod

7、(占GGSGGS) )；0.020.02PulsePulseWidthWidth(K(Kcfcfperiod)period); ;5 5PhasePhasedelaydelay(secs)(secs); ;30*0,32/36032/360J JInterpretvectorparametexsInterpretvectorparametexss.ss.s1-P1-PTrrOKICancelHelpOKICancelHelp SourceBlockParameters:PulseGeneratorlendPulsePulsetypetypedetsEjninedetsEjnineJ Jthet

8、hecowiputationaltechniqueUEel.cowiputationaltechniqueUEel.T Tijue-baseiijue-baseiisisrecornjirecornjiendedforusewith3endedforusewith3variablestvariablestepepsolver,solver,vh-ilevh-ileSamplSample-basedisrecaimwendedfore-basedisrecaimwendedforusewithafixedusewithafixedststepsolverorwithinepsolverorwit

9、hina adiscretepordiscreteportionoftionofa amatieusmatieusingingavariableavariableststepsolver.epsolver.ParajnetParajnet號二汗PulsePulsetype:type:TimeTime, ,Tine(七Usesiaulati_citkti*eAnplitudeAnplitude：3PerPeri iod(secs)od(secs): :0.020.02PulseWidthPulseWidth(36cf(36cfperiod)period)：1010Phasedelay(secs)

10、;(3O+l?0)*C.OS/36O(3O+l?0)*C.OS/36O/Interpretvectorpatrsmetersasl-D/Interpretvectorpatrsmetersasl-DOKQanalHelpOKQanalHelpendendPulsePulsetypetypedfterjninesthecnputatdfterjninesthecnputatioxialtioxialtchniqueused.chniqueused.Time-basedisrecornjBenJed.forTime-basedisrecornjBenJed.foruseusevilhavariab

11、lestepvilhavariablestepsolver,ThileThileSople-fSople-fcasedcasedisr&cisr&cojoendedojoendedforuseforusevithvithafiuedfiuedstepstepsolversolverororwithinadiscretewithinadiscreteportioportion nofanodeusingavariablestepsolvex.ofanodeusingavariablestepsolvex.ParametersParametersPulsetype:TiznuePu

12、lsetype:TiznuebasedbasedTine(t)Tine(t): :UsesimulUsesimulatati ionontimetimeAmplitude:Amplitude:PeriodCsecs)PeriodCsecs): :0.020.02PulseWidthPulseWidth(猩ofofpenod)penod): :Phasedelay(secs)Phasedelay(secs)! !30-h240)*D.02/3e030時,成過零時,VTI不美斷,直到VT2的脈沖到來才換流,由VT之導(dǎo)通向放載供電,同回向 VTI旅加反壓使其關(guān)斷,因此M波形中會出現(xiàn)負(fù)的局部口 id波形有一定的脈動,但為筒化分析及定母計(jì)翼,可將 id 近似為一條水平線阻