基于MATLAB的三相半波可控整流电路仿真实验报告

1、基于MATLAB的三相半波可控整流电路仿真实验报告一、实验名称基于MATLAB的三相半波可控整流电路仿真实验报告二、实验目的对三相半波可控整流电路进行参数设计，并运用simplorer7.0进行仿真，学习Matlab的动态分析。掌握的三相半波可控整流电路工作原理及特点，改变脉冲移向角，观察输出电压、电流和晶闸管的电压、电流的变化情况。观察在电阻负载和阻感负载时，输出电压、电流和晶闸管的电压、电流的变化情况。三、实验平台Matlab/simulink/simpowersystem四、实验原理三相半波可控整流电路(电阻负载)原理图VT,VT,VT3图1一和平谡川揑整流电路障理圏公式原理)er30R

2、.負载电療连续.鬲217.s.iniutd(ajt)=1.17tAcosa畑时,比为聂从6=%=中5知L-2(2)a3庚载电療断給胡帕管导通角統Islit讨百:77-Lr42U2=0,675C7-j1+cott(/6a)Z7T/J碍p屮心=150时U,=0负载吐漩的:比山打为為于晶闸管是交替工作的流过晶闸竹的平均电沛为(3)变压器二次线电压峰值:Urm6U2=2-45U2变压器二次相电压峰值：Ufm2U2三相半波可控整流电路（阻感负载）原理图三相半波可控整流电路（阻感负载）公式原理：l.a小于等于30时整流电压波形与电阻负载相同。2.A大于30时，Ud=1.17U2COSa13.I2=IVT=

3、i3Id=0.557Id4.1=JL=0.368IdVT(AV)1.57仿真原理图powergui.ScopeV1vAACXRLoVGe+v+i心Scope3PulseThyristorlGeneratorScopelScope2-QPulseinnr；erator-aThyristorContinuousrS+V2AC1PulseGenerator2lakThyristor2AC2+v+v五、实验内容仿真参数设计电源参数，频率50Hz，电压100v,其相限角度分别为0、120、-120。如图1、2、3所示图3脉冲参数振幅3用期0.02?|7空比跖时相延迟分别为5U0)/3150*0.0：(a

4、+120430)八帖帥0(；趴(n4240+30)/360+0.023即圏：;.圏九圏5所示endPulsetypedeterminesthecomputationaltechniqueused.Time-based,is工亡匚ojuniendedforuseUFithavariablestepsolverjvh.ileSample-tasedisxecamm.endedforusewithafisedstepsolwerorlthrn.adiscreteportionofajtlodeusingavariablestepsolder.ParajuetersPulsetype:Timebase

5、drrrOK|Cancel|Help吕SourceElo匚kParameteirs-：PulseGen&ratorlendPulsetypedeterminesthecomputational丈已匚hniqueused.Time一baE&disrecsnunendedforusewithavariable吕tepsolver;vfIiileSample-basedisreccunmendedforusewithafisedstepsolverorvithinadiscreteportionofanodeusingavariablestepsolver.ParajnetersPulsetype:

6、Tim.ebasedTime(t):UseslmulatxontlmeAmplitude:FulseWidth(掘ofperiod:10Phasedelay(secs):(30+120)+0.02/360JInterpretvectorpatam&tersas1-DrrrOK|Cancel|旦亡endPulsetypedeterminestheccmpLitationaltechniqueusedTine-basedisrecommended,foruseurithavariablestepsolverwhileSajnple-basedisrecommendedforuseurithafis

7、edstepsolverorwithiriadiscreteportionofa.modeusingavariablesi:epsolver.FarametermPulsetype:TimebasedTime(t):Usesimulation丈imeAjn.plitude:3Period(secs):.02PulseWidth(%ofperiod):10Fhasedelay(secs):(30+240)*0.O2/3fiO/Iriterpretvectorparajnetersas1DrrrrIOKCstle&IHelp电感负载参数阻感负载参数4BlockParam&ters:RC_-S3-S

8、eriesELCBranch(mask)(link)Imp1ementeaseriesbranchofRLCelejnente.UsetheJBranchtypeJparameturtoaddorremoveelementsfromthebrancli.ParauietersBranchtype:RLResistance(Ohuis):MeasurejieiAtsNoneOKCancelHelpApply示波器参数MS匚ope-parametersGeneralDat目Higtarylip:tryrijhtclickingonaxesLimitdatapointstolast:Savedata

9、tow?rks-pace;Variablftname:ScdpeDataFormat;StrudurewithtimuOKC-ane&lHalpApplyG&neral氏加HistoryTip:tryrightclickingonaxesAxe-shJumberofaxes:3floatingscopeTimerange:autoTicklabels:b-ottorriaxisonlySamplingSampile-timeQ.02/1000KCancelHelpApplySimulationtime设计三相半波可控电路（电阻负载）0,波形图uaTimeoffset:dTimeoffset:d

10、Timeo-ffset:dTimeoffset:dTimeoffset:didTimsonset:&三相半波可控电路（电阻负载）30,波形图uaTimeo-ffset:dTimeo-ffset:dud三相半波可控电路（电阻负载）60,波形图U3IieoffsetGTimeo-ffset:dTimeo-ffset:dTimeoffset:didid、九1、厂、11厂、r1JfV.X1.1.-y:IvX:.1.1.1V、ii11ii,i1110Q005OJ：I1Q015Q02Q025D.C60.0350.04D.O45D.C6Timsonset:&三相半波可控电路（电阻负载）90,波形图ieoff

11、setGTimeo-ffset:dTimeo-ffset:divt1uvt1Timeoffset:dudididTimeoffset:dTimeoffset:dIDTimsQlTset:&三相半波可控电路（电阻负载）150,波形图uaidugivt1Timeoffset:CindTimeoffset:CiTimsDlTset:&三相半波可控电路（阻感负载）0,波形图uaieoffsetGTimeo-ffset:didIDidID三相半波可控电路（阻感负载）30,波形图14己ieoffset:GTimeo-ffset:dTimeo-ffset:dTimeoffset:dndidID三相半波可控电路（阻感负载）60,波形图U3IieoffsetGTimeoffset:dndI0.0050.010.0150.020.0250.030.0350.040.0450.05Timeci-ffset:Cl三相半波可控电路（阻感负载）90,波形图uaieoffsetGTimeoffset:dndTimeoffset:d五、实验总结阻感负载：aU，整流电压波形勺电附贷載时和【讥a30时丁u2过零时,TI不关断，肚到E的脉冲判来才换流.VT2导通问奴载供电,同时IbJVT1施加反爪使其关断*閑此直碱形中会出现如I勺部分。kl波形仃一定的脉动.门为简化分析及厲计算，可将胡近似为一条水平线