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:2006-07-03:(06c751):(1967-),,,,.214200611()JOURNALOFCHANGSHAUNIVERSITYOFELECTRICPOWER(NATURALSCIENCE)Vo.l21No.4Nov.2006DBDPWM王跃球,唐杰(,422000):DBDPWM.CD40466,7,,PWM.PWM,,.:;;;PWM:TM762:A:1006-7140(2006)04-0052-04AFrequencyTrackingPhaseShiftPWMControlTechnologyforDBDOzoneGeneratoranditsRealizationWANGYueqiu,TANGJie(DepartmentofInformationandElectricalEngineering,ShaoyangUniversity,Shaoyang422000,China)Abstract:AfrequencytrackingphaseshiftPWMcontrolstrategyforDBDozonegeneratorisproposedinthispaper.Inthisstrategy,integratedphaselockedloopCD4046isusedandthefrequncytrackingphaseshiftPWMfunctionisrealizedbycomparingagivenDCvoltageandasawtoothvoltageinPIN6andPIN7oftheCD4046undertheconditionwhenCD4046isonphaselockedstatus.ComparedwiththeotherfrequncytrackingphaseshiftPWMcontrolstrategy,thestrategybasedonCD4046proposedinthispaperhasthecharacteristicsofsimplenessandeasytorealize.Thefeasibilityandvalidityofthestrategyproposedinthispaperisverifiedbytheexperimentalresults.Keywords:ozonegenerator;dintegratedphaselockedloop;frequencytracking;phaseshiftPWMcontrolDBD.,,.[1],,,.,[2~4].PWM,,.,,.PWM.[5~6],[7],[8,9].CD40466,7,,PWM.,DBD.1DBDDBD1.1DBD型臭氧发生器电源系统框图2,LC.PWM,,,,.LC..L,.,.VT1~VT44,,PWM.IGBT.Ls,.PWM.CONCEPTSCALE2SD315A,,,.Tr.2主电路原理图2CD4046PWM3PWM.i0i0.,VT1,VT2.,2,2VT4,VT3.(),53214,:DBDPWM,.4.3频率跟踪移相控制电路原理框图4频率跟踪移相控制电路波形图[7]CD4046LM311,,0~180.,,[7]5.3CD40467PWM,,CD4046,.6.[8,9],,.5移相控制电路原理图CD40106LM311,.CD40467VCC/2,0-VCC/2.R10CW,0-VCC/2.5,,,.6PWM,A,B.6移相控制电路波形图6,,5,,,,.,.C3,.3PWMPCB,DBD..7VT3,(a),(b).,VT3,.,,.7VT3两端电压与负载电流波形图54()2006118VT1,(a),(b).8VT1两端电压与负载电流波形图8,VT1,,..9,(a),(b).9VT1的触发脉冲与负载电流波形图10VT1,(a),(b).10VT4的触发脉冲与负载电流波形图910,VT1;VT40,,,,.VT1,VT4,.11,(a),(b).11逆变器输出电压与负载电流波形图4CD4046DBDPWM.PWM,..,DBD.:[1],.[M].:,1996.[2],,.[J].,1999,(6):1315.[3]ShengpeiWang,MasakiIshibash,iYueluFeng,eta.lSeriesCompensatedInductorTypeResonantInverterUsingPulsedDensityModulationSchemeforEfficientOzonizer.IndustrialElectronics[J].ProceedingsoftheIEEEInternationalSymposium,1997,(2):347352.[4],,.PWM[J].,2000,(6):3132,42.[5],,,.[J].,2001,(1):34,37.[6],.IGBT[J].,1999,27(9):3234.[7]HaldunKaraca.PLLICFormsSimpleDigitalPhaseShifter[EB/OL].[8],,,.[J].,2002,28(10):4142,53.[9],,.PWM-PFM[J].,2003,37(1):811.55214,:DBDPWM