硕士论文-能量回馈型交流电子负载变换器研究

南京航空航天大学硕士学位论文能量回馈型交流电子负载变换器研究姓名：王雷申请学位级别：硕士专业：电力系统及其自动化指导教师：陈新20080201iUPS[1][2][3][4]PWM[5]PWMSaberPWM--iiABSTRACTHigh-powerACsourcesuchasUPS,generators,powerinverter,hasbeenwidelyappliedinvariousfields,soitsaccuratetestofperformanceandreliabilityappearstobeparticularlyimportant.Traditionaltestmethodsmainlyconsistofthebigresistanceloaddischargetestandtheconventionalelectronicloadtest.Thebigresistordischargetestcannotprovidecontinuousloadimpedanceandconsumesalltheenergyfromthetestedobjected,resultinginwasteofenergyandbringseriouslyseriousheatproblem.Forconventionalelectronicloadtest,therearestillenergywastingandheatingproblem,althoughthetestaccuracyproblemissolved.Inordertosavingenergyandreducingradiationproblem,anewtypeofACelectronicloadwithenergyfeedbackisinvestigatedinthispaper,itcanaccuratelycontrolthedischargecurrentofthetestedobject,atthesametimemaketheenergyfeedbacktotheACgridinunit-factor.Theenergyfeedbacksystemstudiedinthispaperhasaveryfineapplicationextension,whichcannotonlybeusedinACelectronicloaddirectly,butalsobeappliedinregenerateenergygeneratorandmotorbrakingenergyfeedbackandotherapplications.First,thePWMrectifierprincipleisanalyzedinthethesis,accordingtothecharacteristicsofitsACsidecurrentfullcontrolandFour-quadrantoperation,ThePWMrectifierisintroducedintotheenergyfeedbackACelectronicload.TheDClinkdoubleVSRtopologyisusedinelectronicloadasthemaintopology;directcurrentcontrolisusedtofullyguaranteethecontrolaccuracyandspeed.Then,theworkingprincipleofenergyfeedbackelectronicloadisdiscussedindetail,andaclosed-loopsimulationmodelissetupinSabersimulationenvironment,thesimulationofstaticanddynamicconditionsismade.Finally,therelatedhardwarecircuitsandsoftwareoftheenergyfeedbackpartaredesignedindetail,andprototypedevelopmentandexperimentvalidationarecompleted.Keywords:ACElcctronicLoad,EnergyFeedback,PWMRectifier,AC-DC-ACTopology,UnipolarHysteresisCurrentControlvi1.1..........................................................................11.2UPS..................................................................................21.3UPS..................................................................................32.1PWM....................................................................72.2PWM........................................................72.3PWM....................................................................................92.4PWM..................................................................92.5PWM................................................................102.6.................................................................112.7............................................................................................122.8PWM....................................................122.9................................................................................................132.10..............................................................143.1PWM....................................................163.2................................................................173.3........................................................................................183.4PWM....................................................193.5........................................................203.6....................................................................213.7................................................................................223.8............................................................................233.9....................................................................253.10..................................................................263.11..............................................................................................263.121i30.................................................................273.131i60.................................................................283.141i30.................................................................283.151i60.................................................................29vii3.16..........................................................................314.1........................................................................344.2BSM100GB60DLC.....................................................................364.3....................................................................................374.4........................................................................................384.5+2.5V.........................................................................384.6....................................................................................394.7....................................................................................404.8M57962..............................................................414.9............................................................................................414.10..........................................................................434.11.