电流相位补偿解决单相PFC中的过零畸变

4311200911PowerElectronicsVol.43No.11November，2009：2009-06-25：（1984－），，，，。1APFC[1-2]。BoostPFC、。BoostPFC。360～800Hz。THD。[3]。22.1BoostPFCBoostPFC、、。[4]。。1BoostPFC。1BoostPFC2。GivsGivs=1/r+sLGidsGids=Uo/r+sLr。His=ωi1+s/ωzs1+s/ωp12Igs=Givs1+TisUgs+GidsUm-1His1+TisgUgs2Ti=GidsUm-1Hishs。BoostPFCYs=IgsUgs=Givs1+Tis+GidsUm-1His1+Tisg3YsYs=Y1s+Y2s3PFC，210016ActivePowerFactorCorrectionAPFC360～800Hz。。PFC。。/：TM714.1：A：1000-100X200911-0014-02CurrentPhaseCompensationResolvingZero-crossingDistortioninSingle-phasePFCConverterWANGShao-yong，ZHANGFang-huaNanjingUniversityofAeronautics&AstronauticsNanjing210016ChinaAbstractTheactivepowerfactorcorrectionAPFCisaverycommontechnologyforahighpowerfactor.Buttherearein-putcurrentdistortionsinthevicinityofinputvoltagezero-crossingofsingle-phasepowerfactorcorrectionPFCconverter.Zero-crossingdistortionappearssignificantlyintheinputcurrentatmediuminputfrequencies360～800Hz.Themajorcauseofzero-crossingdistortionisthephaseleadingoftheinputcurrent.Theadmittancefunctionbasedonmodellingcon-verterisgivenandthecauseofthephaseleadingisfound.Bycompensatingtheleadphasethephaseleadoftheinputcurrentiseliminatedandthezero-crossingdistortioncausedbythecurrentphaseleadingiscanceled.Keywordspowerfactorcorrection/leadingphaseadmittancecancellationzero-crossingdistortionugt=uintuintUo1/UmHisghs1BoostPFC2BoostPFC143BoostPFC、Y1s=Givs1+TisY2s=GidsUm-1His1+Tisg44BoostPFC。fine。Y1s1kHz90°。Y2s3kHz。Y1s360～800Hz[5]。2.23Y3sY1s5。6。Y′s=Y1s+Y2s+Y3sY3s=GidsUm-1His1+TisHcs!##$5Y3s=-Y1s1kHzHcs=-sUoUm-1ωi1+s/ωz%&6Y3sY1sY2s。800Hz。2.3Rc-Cc7。。HcsHis=-Rcz+1/sCcz’(1/sCcpRc+1/sCcz717Hcs=-CcCcz+Ccp·sωi1+s/ωc%&8ωc=1/CcRc。68ωc=ωzRc=1CcωzCc=Ccz+CcpUoUm-19BoostPFCY′s=Y2s=GidUm-1His1+Tig1033.1UCC3854500W。uin=115±10%V400~800HzUo=270VBoostPFCL=0.5mHCo=440μFfs=100kHz。Ccp=100pFCcz=680pFRcz=20kΩRci=1.8kΩfz=11kHzfp=96kHz。Cac=0.47μFCdc=0.03μF。90°。。3.2200W800Hz5°Rc=1.2MΩCc=12pF0.2°。saber。3.3200W600Hz800Hz（49）4BoostPFC5LPACBoostPFC6BoostPFC7LPACBoostPFCPFC158nf0nDAmn=anUim2mUim=sinnDπnDπ620kHzn＝400Amn0.1mH50μF。、。46。7。KBPC5010IGBTK50T60IR2133PWMSG3525H50Hz400kHz600Hz。LM324LM339NPN9013PNP9012FR107。SG3525。5。、。。PWM1。。[1]．[J]．2004720108-109.[2]．[J]．2005881-4.[3]．[J]．20041220106-107.[4]．IGBT[J]．200337260-62.[5]．[J]．199933626-29.67!!!!!!!!!!!!!!!!!!!!!!!!（15）LPAC。8abLPACTHD4.3%2.1%。8cdTHD7.5%2.5%。4BoostPFC。。[1]MFSchlecht．Time-varyingFeedbackGainforPowerCircuitswithActiveWaveshaping[A]．ProceedingsofIEEEPESC[C].198152-59．[2]JianSun．AnalysisandDesignofSingle-phasePFCConvertersforAirborneSystems[A]．ProceedingsofIEEEIECON[C].20031101-1109．[3]KonstantinPLouganskiJih-ShengLai．CurrentPhaseLeadCompensationinSingle-phasePFCBoostConverterwithaReducedSwitchingFrequencytoLineFrequencyRatio[J]．IEEETrans.onPowerElectronics2007221113-119．[4]PCTodd．UC3854ControlledPowerFactorCorrectionCir-cuitDesign[S]．UnitrodeApplicationNoteU-1341999．[5]JianSun．DemystifyingZero-crossingDistortioninSingle-phasePFCConverter[A]．ProceedingsofIEEEPESC[C].20021109-1114．49