一种单周期控制的三相三开关pfc电路分析-analysis of a single cycle controlled three-phase three-switch pfc circuit.docxVIP
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一种单周期控制的三相三开关pfc电路分析-analysis of a single cycle controlled three-phase three-switch pfc circuit
AbstractWithpowerelectronicstechnologywidelyused,Ithasbecomeanindispensablenationalindustrialdevelopmentofamodernindustrialtechnology,harmonicattendantpollutionproblemsshouldnotbeoverlooked,whichisaroundtheworldattachgreatimportancetoit,thePowerFactorCorrectiontechnologyistheharmonicpollutioncontrol,isaneffectiveway,Atpresent,single-phasepowerfactorcorrectiontechnologyhasbecomemature,andthree-phasepowerfactorcorrectiontechnologyresearchathomeandabroadhasbecomeahotresearchtopic.Inthispaper,firstandforemostisthepowerfactorofthebasicconceptsandPFCthepurposeandsignificanceintroducesseveraltypicalhighpowerfactorrectifiercircuittopologyandcurrentcontrolstrategy,thenthesingle-cyclecontroltechniqueofin-depthresearch,aswellasathree-phasethree-switchingpowerfactorcorrectioncircuitanalysishasbeenrealizedPFCcontrolformulaOnthisbasisthecompletionofa500W/100Vrectifiercircuitofhighfrequencycircuitdesignparameters.andgivesthecontrolcircuitdesignandparametersThecontrolprogramatthesametimeonlytwoswitchesinastateofhighfrequencyswitching,andtheotherswitchisturnedoffstatethusgreatlyreducetheswitchingloss.Accordingtothedesignparametersandtheactualstructureofahigh-frequencyrectifier500W/100V,receiveinputcurrentTHDneverjoinedthepowerfactorcorrectiontechnologytoreducethe5.242%56.483%,thepowerfactorabove0.99,achievingapowerfactorcorrectionpurposes.Experimentalresultsshowthattheuseofone-cycle-controlofthree-phasethree-switchingpowerfactorcorrectioncircuittopologymainsimple,Switchinglossesandcontrolstrategyiseasytoimplement,powerfactorcorrectionresultsandtheuseofacertainnature.Keywords:PFCtechniqueOne-cycle-controlThree-phasethree-switch目录摘要....................................................................................................................IAbstract..............................................................................................................II1绪论1.1电力电子技术概述..................................................................................(1)1.2整流变换中的谐波危害..........
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