有源电力滤波器英文文献和中文翻译

附录附录一：英文文献A10KVShuntHybridActiveFilterforaPowerDistributionSystemAbstract—thispaperanalyzesthecompensationperformanceofashunthybridactivepowerfilter.Thehybridactivepowerfilter,whichcombinespassivefilterandactivepowerfilter,hasbothrespectivemerits,andisanimportantdevelopingtrendoffilteringdevice.Thehybridactivepowerfiltercanreducethecapacityofactivepowerfiltereffectivelyandismoresuitablefortheengineeringapplicationforhighvoltagenonlinearloads.Thecompensationperformanceofhybridactivepowerfilterisanalyzedbyestimatingtheeffectofdifferentactivepowerfiltergainandparameterschange.Then,aconclusionhasbeenobtainedthattheharmonicattenuationrateisinsensitivetothevariationofpassiveparameterswhentheactivepowerfilterwithanenoughfeedbackgainiscombined.Finally,thefeasibilityandvalidityofproposedschemeisverifiedbySimulationusingMatlabandahybridshuntactivepowerfilterprototype.IndexTerms:Currentharmonicscompensation,activepowerfilter,passivefilter,generalizedintegrators.I.INTRODUCTIONInthedevelopmentofpowerelectronicsbringsconveniencetoenergyconversionandutilizationandalsocausespowerqualityproblems.Asoneofthekeytechnologiesincombatingpowergridpollutionandimprovingthepowerquality,activepowerfilter(APF)hasbecomeanewresearchemphasisinpowerelectronicstechnology[1]-[5].Becauseofhighinitialcost,thefurtherapplicationofactivepowerfilterisrestricted.TheHAPF(HybridActivePowerFilter),combinationofAPFandpassivefilter(PF),canreducethecapacityofAffectivelyandismoresuitablefortheengineeringapplicationofAPFforhighvoltagenonlinearloads.Traditionally,Passivefilterhasbeenusedtoeliminatetheharmonicinpowersystemduetohislowcostandhighefficiency.Apassivefiltershowsthelowimpedanceattunedfrequencytoabsorbcurrentharmonicandhasagoodcompensationperformance.However,passivefilterhasthedisadvantageofdependingontheparametersofpowersystem,susceptibletotheloadandpowersystemresonantandthecharacteristicchangeduetoaging.Inaddition,passivefilterusuallyisdesignedwithfixedparameters,whichcannotbelightlyadaptedforthevariationoperationcondition.Activepowerfilterhasbeendevelopedtoovercomeofdisadvantagesofpassivefilterandcanprovideflexibleandreliablecompensation,butisnotacost-effectivesolutionduetthehighoperationcost.Becauseofthedrawbacksofpassivefilterandactivepowerfilter,theresearchonhybridactivepowerfilterhasbecomemoreattractive[6]-[9].Hybridactivepowerfiltercomposedofpassivefilterconnectedinseriestoanactivepowerfilterimprovesthecompensationperformanceofpassivefilterremarkably,givemoreflexibilityandreliabilitytofilterdevice,andredoundtotheuseofactivepowerfilterinhigh-powersystemavoidingtheexpensiveinitialcost.Inthispaper,thecompensationperformanceofhybridactivepowerfilterinanindustrialpowerdistributionsystemisanalyzedbyestimatingtheeffectofdifferentactivepowerfiltergainandparameterschange.Finally,thecompensationofhybridactivepowerfilterisverifiedbysimulationandalaboratoryprototype.Thepassivefilterofprototypewastunedattheseventhharmonicandthegeneralizedintegratorsareusedtoeliminatethe5th,11thand13thharmoniccurrent[10].II.PRINCIPLESOFCURRENTHARMONICCOMPENSATIONThehybridactivepowerfiltertopologyisshowninFig.1,whichconsistsofathree-phasepulsewidthmodulation(PWM)voltage-sourceinverter(activepowerfilter,APF)andthepassivefilterconnectedinseriestoAPFthroughcouplingtransformer.Generally,theactivepowerfilteractsasacontrolledvoltagesourceandforcetheharmoniccurrentintothehybridactivepowerfilter.Theprincipleofoperationofcurrentharmonicisexplainedbythesingle-phaseequivalentcircuitshowninFig.2whenthefeedbackcontrolisappliedtotheactivepowerfilter.Inthecurrentharmoniccompensationstrategy,theactivepowerfilterisconsideredasacontrolledvoltagesourceVAPF,andZFistheimpedanceofpassivefilter,ILhistheloadharmoniccurrent,ZSisthesystemimpedance.Inordertoeliminateharmonicofthesystemcurrent,theactivepowerfilteriscontrolledasacurrentcontrolledvoltagesource.TheactivepowerfilterimposesavoltagesignalVAPFthatforcesloadharmoniccurrentflowintothepassivefilter,thusimprovingitscompensationperformanceindespiteofthevariationinthetunedfrequencyofthepassivefilter.ThevoltagereferenceofactivepowerfilterisequaltoVAPF=K⋅Ish(1)Where,Kistheharmoniccompensationgain.Supposingutilityvoltageispuresinusoidal,therationbetweentheutilityharmoniccurrentandtheloadharmoniccurrentisobtained,whichcanbeusedtodenotethefilteringcharacteristicsofhybridactivepowerfilter.Otherwise,KactsasaresistancetodampresonancebetweenZSandZF.ThelargerKisselected,thelowertheharmoniccontentsintheutilitycurrent.Butthiswillincreasetherequiredpowerratingoftheactivepowerfilter.Inrealcondition,Kisfinite.Otherwise,closedloopcontrolsystemwillbecomeunstable.Fig.1hybridactivepowerfilterconfiguration.Fig.2Single-phaseequivalentcircuitofthehybridactivepowerfilterscheme.III.ANALYSISOFTHEHYBRIDFILTERPERFORMANCEINADISTRIBUTIONSYSTEMThissectionwillshowthecompensationperformanceofhybridactivepowerfilterthroughanexample.Thepowerdistributionenergizesthesixmediumfrequencyfurnace,eachof300KWratepower.Themediumfrequencyfurnacesenergizedbysixpulseuncontrolledrectifiers.T