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1、Three-PhasePhase-LockedLoopControlofaNewGenerationPowerConverter121W.PhippsM.J.HarrisonandR.M.Duke12DepartmentofElectricalandComputerEngineering,EatonPowerwareLtdUniversityofCanterbury,Christchurch,NewZealandChristchurch,NewZealand.Email:williamsphipps@eaton.comAbstractTheIEC10
2、00-3-2standardwasintroducedtoregulateharmoniccurrentsdrawnfromthemainssupply.TheseThispaperdescribesthedevelopmentofanewharmoniccurrentsreducetheefficiencyofthepowergenerationofpowerconverter,usedtopowerdrawnfromthemainsandcanexciteresonances,astelecommunicationsequipment.Atele
3、communicationswellasoverloadingthecircuitwiring.HavingtoconvertermustcomplywiththepsophometricnoisecomplywiththesestandardshasdictatedthewayinstandardCCIF-1951andtheIEC1000-3-2harmonicwhichtelecommunicationsmanufacturershavehadtostandard.WhiletheIEC1000-3-2standardiseasilymetde
4、signtheirsystems.Atypicaltelecommunicationswithactivepowerfactorcorrectiontechniques,ahighpowerconverterisasingle-phasetwo-stagetopologyasdegreeofeffortisusuallyrequiredtomeetwiththeshowninFigure1.Thefirststageoftheconverterispsophometricstandard.Therefore,acontrolusuallyaboost
5、stage,usedtoprovidepowerfactormethodologyutilisingathree-phasephase-lockedloopcorrection(PFC)andhenceregulatethemaximumisintroducedasamethodofcomplyingwiththeallowableinputharmoniccurrentcontentdefinedbythepsophometricstandardunderdistortedmainsconditions.IEC1000-3-2standard[1]
6、.TheboostregulatorisaSimulationsshowthatcombiningthiswithanovelpopularchoiceforPFC.Someofthereasonsare,afeedbackcontroller,resultsinanimprovedloadstepsimpletopology,ahighefficiency,andduetotheinputresponseoverusingatraditionalproportionalintegralinductorbeinginserieswiththeacpo
7、wertheinputtypecontroller.currentiscontinuous,resultinginlessEMIandthereforereducedinputfilteringrequirements[2].A1Introductionboostconverterhowever,hasaninherentweaknessinthatitcannotprovideeffectiveprotectionfromoutputTraditionalconverters,usedasdcpowersuppliesintheshort-circ
8、uitfailure.telecommunicationsindustryaretypicallyasing