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28120091AdvancedTechnologyofElectricalEngineeringandEnergyVol.28,No.1Jan.2009:2008207224:(60774043);863(2004AA001032):(19572),,,,,;(19842),,,,,,,,(,410082):,,,PI,,:;;;:TM13:A:100323076(2009)0120021204[1,2],,(PPF)(APF)[326](HAPF),[8,9],,,,[7],APF,,APFPI,1(HybridActivePowerFilterwithSingleInjectionBranch,SIBAPF),[1]SIBAPF1,USh,ZSh,ILh,UFh,n1,Z1Co,Z2,ZLo1SIBAPFFig.1SinglephaseequivalentcircuitofSIBAPF1,,:USh=ULh+IShZShISh=ILh+IFhULh=nUFh+ILon2ZLo+IFhZ2(1)IFh=ILo+IcIcZ1=nUFh+ILon2ZLo(1):ISh=(K2+Z2)ILh+USh-K1nUFhK2+ZSh+Z2(2):K1=Z1n2ZLo+Z1,K2=n2ZLoZ1n2ZLo+Z122.1HAPF,:,UFh=KILh(2):ISh=K2+Z2-nKK1K2+ZSh+Z2ILh+1K2+ZSh+Z2USh(3),:,UFh=KULh(1):ISh=K2+Z2K2+ZSh-nKK1ZSh+Z2ILh+1-nKK1K2+ZSh-nKK1ZSh+Z2USh(4),,,,,UFh,,APF,:UFh=K3ILh+K4ULh(5)(1):ISh=K2+Z2-nK1K3K2+(1-nK1K4)ZSh+Z2ILh+1-nK1K4K2+(1+nK1K4)ZSh+Z2USh(6)(5)K3ILh,K4ULh2.2SIBAPF(1):1|USh=0=|ISh||ILh|100%,2|ILh=0=|ISh||USh|100%(6):1=|K2+Z2-nK1K3||K2+(1-nK1K4)ZSh+Z2|(7)2=|1-nK1K4||K2+(1-nK1K4)ZSh+Z2|(8)(7)(8)UShILh,,(7),1,K3K4ULh,K41()25Matlab1K3,2(a),(b),(c),,,K32Fig.2Waveofharmoniccurrentcompensationcoefficient2,ILh,,,;,;,,,22282,33Fig.3Waveofharmonicvoltageeliminationcoefficient3,,SIBAPFUSh,2,SIBAPFUSh,USh,K42,K4,SIBAPFUSh,,(2)SIBAPF(7),,SIBAPF,4(a),4(b)4Fig.4Frequencycharacteristicsofharmonicresonanceanddamping4,K3,K40,,,K3=10K4=1,3PI3.1K4APF(6),|1-nK1K4|=0,K1:K4=n2ZL0+Z1nZ11n(9),,K41Pnn1,K4=1(6),K3K4,,PI,,3.2PI5,iLhiShiCuLhAPFAPF,PI,,:5PIFig.5Configurationofcomplexcontrolsystem3.2.1PIe(iLhiC),NPI(eN)PI:u(K)=KPKe(K)+ci=0KIK-iNe(K-iN)(10)u(K)K,e(K)K,N,KPK,KIK321,:,cKPN,u(K),:u(K)=u(K-N)+u(K)=u(K-N)+KPKe(K)-KPK-Ne(K-N)+KIKe(K)(11)3.2.2PIe,,KP,KI,[6]KPKI:|e|,,KP;,,KP;,KP;ece,,KP;,KP;|e|,,KI;|e|,,|e|,,4,SIBAPF,,380VTI240766,,,5711133413%1912%914%715%;SIBAPF2185%,1122%,2172%1155%,5,,,,;6Fig.6Experimentresults,,APF,,(References):[1](LuoAn).(Controlandreactivepowercompensationofthegridanditsequipments)[M].:(Beijing:CPEE),2006.[2]FujitaH.Ahybridactivefilterfordampingofharmonicresonanceinindustrialpowersystems[J].IEEE2TPE,2000,15(2):2152222.[3],,,(ZhouKe,LuoAn,TangXin,etal.).(Designandapplicationofhigh2capacityshunthybridactivepowerfilter)[J].(Adv.Tech.ofElec.Eng.&Energy),2007,26(1):29233.(60,cont.onp.60)4228excitingpoweratjointsisseparatedinwayofmaterialhomogenizing.Themagneticandlosscharacteristicsofthemodelcores,withoutstressreliefannealing,aremeasuredforcomparisonwiththeresultsbyEpstein.Resultsinthispaperhavebeenadoptedto[1]andtheaccuracysatisfiesengineeringrequirement.Thewaytodeterminatetheaveragemagneticcircuitlengthisdiscussedforreducingerror,includingwhichtypeofB2HcurvesshouldbechosenforFEMsimulation.Keywords:dualcoremodel;oversaturation;joints;excitingpower;laminatedcore(24,cont.fromp.24)[4],,(ZhouKe,LuoAn,ChuHongbo).(Researchandengineeringapplicationofanovelhigh2capacityshunthybridinjectiontypeactivepowerfilter)[J].(Adv.Tech.ofElec.Eng.&Energy),2008,27(1):16220.[5],,(XiaoXiangning,XuYonghai,LiuHao).(Analysisofhybridpowercompensatoranditsexperimentalstudy)[J].(AutomationofElec.PowerSystems),2002,26(3):39244.[6],,,(PengXiaotao,ChengShijie,WangShaorong).PWM(AnovelPWMcontrolforcurrentsourceconverteranditsapplicationinasuperconductingmagneticenergystorageunit)[J].(Proc.CSEE),2006,26(22):60266.[7],,(LiuFei,ZouYunping,LiHui).(Anovelcombinedcontrolalgorithmforthehybridactivepowerfilterappliedtohighvoltagegrid)[J].(AutomationofElec.PowerSystems),2004,28(21):58261.[8](LiZhuo).PID(Self2adjustingPIDcontrollerbasefuzzyinference)[J].(ControlTheory&Applications),1997,14(2):2382241.[9]LeonidR,OmarG.PIDplusfuzzycontrollerstructuresasadesignbaseforindustrialapplications[J].EngineeringApplicationsofArtificialIntelligence,2000,13:4192430.[10],,,(LiuWeihong,ZhuJianlin,DengWenlang).22(Controlstrategyofmulti2drivesystembasedonAC2DC2ACmatrixconverter)[J].(Proc.CSEE),2006,26(6):1112115.StudyoncompoundcontrolstrategyofhybridactivepowerfilterwithsingleinjectionbranchLUOAn,SHUShi,SUNXian2da,SHUAIZhi2kang(HunanUniversity,Changsha410082,China)Abstract:Inthispaperanelectricalmodeloftheshunthybridactivepowerfilterwithinjectionbranch(SIBAPF)wasbuilt.Twocontrolstrategiesforhybridactivepowerfilterarecomparedaccordingtothismodel,andthenanovelcontrolstrategybasedonthedetectionofharmonicvoltageandharmoniccurrentofthegridwasproposed.Meanwhile,theperformanceofharmoniccurrentcompensationanditsinfluenceonsuppressingvariationoffrequencyandimpendenceofthesystemwhentheproposedstrategyisadoptedisanalyzed.Inordertoimprovethedynamicperformanceofthesystemandrealizenoerrorcontrol,acomplexcontrollerbasedonrecursiveintegralPIcontrolisproposed.Andtheparametersofthecontrollerareon2linetunedbyfuzzyinferencetoenhanceself2adaptiveabilityofthesystem.SimulationandexperimentalresultsshowthattheSIBAPFcanreachanidealfiltereffectwhentheproposednovelcontrolstrategyisadopted.Keywords:harmonicelimination;activepowerfilter;complexcontrol;recursiveintegralcontrol0628