资源描述：
《T型三电平LCL滤波器设计.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、LCLFilterDesigninT-TypeThree-LevelGrid-ConnectedInverterMengyanWang1,2,QuanChen1,2,GuoliLi1,3,CungangHu1,4,LongCheng1,2,andRuiZhou1,31.SchoolofElectricalEngineeringandAutomation,AnhuiUniversity,Hefei,China2.EngineeringResearchCenterofPowerQuality,MinistryofEducation,AnhuiUniver
2、sity,Hefei,China3.NationalEngineeringLaboratoryofEnergy-SavingMotor&ControlTechnology,AnhuiUniversity,Hefei,China4.AnhuiProvinceLaboratoryofIndustrialEnergy-SavingandSafety,AnhuiUniversity,Hefei,ChinaAbstractüWiththerapiddevelopmentofphotovoltaic(PV)T-typeinverters.UPVisDC-side
3、inputvoltageandtheDCpowergeneration,technologyofthegrid-connectedphotovoltaicsideneutralpoint(O)potentialissettozero.TheoutputoftheACsideisconnectedwiththree-phasewires.Three-phasegridsystembecomesanimportantpartofthephotovoltaicpowervoltagesofloadsareusa,usb,uscandcurrentsofth
4、ree-phasegeneration.Basedonthisbackground,gridconnectiongridinductorsareia,ib,ic.techniquesofT-Typethree-levelgrid-connectedinverterwithanLCLfilterisstudiedinthispaper.ThesubjectcombinesSPWMSb1modulationstrategyanddualcurrentloopcontrolstrategy.DueSa1Sc1Cdc1tothecouplingrelatio
5、nshipamongLCL-filterparameters,itisLausaSa3Sa4complicatedtodesigntheLandCparametersintheLCLfilter.LbusbUPVThispaperanalyzestheselectionofLCL-filterparameters.TheLcuscSb3Sb4controlstrategiesofthispaperarecarriedoutundertheCdc2MATLAB/Simulinksimulationenvironment.CorrectnessandSc
6、3Sc4feasibilityofcontrolstrategiesareverifiedthroughtheSa2Sb2Sc2simulationresults.Fig.1.TopologyoftheT-typeinvertersystemKeyWords:T-Typethree-levelinverter;LCLfilter;parameterA.WORKINGPRINCIPLEOFSINGLE-PHASET-TYPEselectionTHREE-LEVELINVERTERThesingle-phaseT-typethree-levelinver
7、tertopologyisshowninFig.2.ItsinputistheDCvoltageprovidedbythePVI.INTRODUCTIONarray.IntheDCside,capacitorsCdc1andCdc2havetheWiththerapiddevelopmentofsocieties,humandemandsamecharacteristicparameters.Thegridoutputvoltageisuo.fornon-renewableenergyisincreasing.Solarenergyisregarde
8、dasarenewableenergysourceinthemostpromisingPowerdevice
