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1、4910IEEETRANSACTIONSONPOWERELECTRONICS,VOL.28,NO.11,NOVEMBER2013LettersNonlinearCurrentControlforPowerElectronicConverters:ICDesignAspectsandImplementationMiodragNikolic,ReinhardEnne,BernhardGoll,andHorstZimmermann′AbstractThisletterprovidesdesignguidelinesandpresentsamode(CCM)anddiscontinuouscondu
2、ctionmode(DCM)[3].fullyintegratedimplementationoftherecentlyproposednonlin-Themethodwasproposedin[2]targetingonly(singlephase)earaveragecurrentcontrol(NACC)algorithmforpowerfactorPFCconverters,butitalsowasgeneralizedandappliedtodcdccorrectionanddcdcconverters.Thecontrolperformanceanddy-converters[4
3、].namicsofthecurrent-modecontrolledpowerelectronicconverterstronglydependsontheaccuracyoftheappliedcurrentsensingAcomparisonoftheaforementionednonlinearcurrentcon-method.SeveralcurrentsensingmethodshavebeenproposedintrolmethodintermsofICimplementationrequirementsfortheliterature,includingthesenseFE
4、Tmethod,whichissuitablePFCapplicationstostandard(linear)averagecurrentcontrol[5]foron-chipcurrentmeasurement.Thisletterpresentsamodi?ca-couldbefoundin[2].AperformancecomparisonispresentedtionofthesenseFETon-chipcurrentsensingtechniquededicatedin[4]forCCMmode,andin[3]forDCMmode,whereappli-foranultra
5、highsensingratioandsuitedforthecurrentsensingprocessing,whichgivescurrent-typeoutputwhat?tswellwiththecationsofthemethodindcdcandsingle-phasePFCconvertersNACCcontrolmethod,thusfurthersimplifyingtheconverterde-havebeensuggestedtoo.Ithasbeenpointedout[1],[2]thatsignandreducingcostaswellasnoisesensiti
6、vityofthecontroltheNACCcontrolmethodisideallysuitedforanintegratedcircuitry.Hence,theneedforavoltage-to-currentandcurrent-to-mixed-signalimplementationofPFCconverters,requiringanvoltagetransformationcircuitiseliminated.Therefore,thepro-analoguecurrentcontrollerthatisverysimple,insensitivetoposedmet
7、hodofthecurrentsensingisapplicabletoanyboost-likeconverter,whosecontrolsystemrequiresanextremelyhighsens-noise,andindependentofconverterandcontroldesignpa-ingratiotobeachieved.Nevertheless,itisespeciallywel
