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1、Multi-functionconverterbasedonLyapunovfunctionusinginphotovoltaicsystem1,21TrungNhanNguyen,AnLuo1:SchoolofElectricalandInformationEngineering,HunanUniversity,China2:FacultyofElectricalEngineering,HoChiMinhCityUniversityofIndustry,VietnamEmail:nguyentrungnhan@hui.edu.vn,an_luo@126.com.Ab
2、stractThedevelopmentofthedistributedgenerations(DG)isessentialtohelptosolvetheenergycrisisandimprovethereliabilityofelectricitysupply.However,theinvolvementoftheDGtothegridalongwiththeincreaseofthenonlinearloadwillreducethepowerquality.Tosolvethisproblem,wewanttheconverterusedintheDGtow
3、orkflexibly,intelligently,moreaccurately.TocontributetheimprovementofqualityoftheDG,thispaperproposesamulti-functionconverter(MFC)model.Withtheproposedmodel,aphotovoltaicgenerator(PVG)whichcanbeoperatedatharmonicsuppression(HAS),andpowerinjection(POI)ismoreflexiblethanaconventionalcontr
4、ollerusedinDG.ThecontrolleroftheMFCwhichisdesignedbasedonLyapunovfunctionalwaysensuresstabilitysystem.Simulationsandexperimentalresultsarepresentedtovalidatethecorrectnessandeffectiveoftheproposedmodel.KeyWords:Activepowerfilter,PVsystem,Distributedgeneration(DG),Multi-functionconverter
5、,stabilitytheory.11.IntroductionInrecentyears,theissueofenergycrisisandenvironmentalpollutionhasattractedtheattentionofallcountriesintheworld.Onedirectionofinterestislookingforcleanenergy(renewableenergy)alternativetotraditionalfossilenergysources,solarandwindenergiesaretwocorrectandind
6、ispensablechoices.TheparticipationofrenewableenergysourcesintothetraditionalpowergridintheformofDGshasformedconceptcalledmicrogrid.Intwomentionedrenewableenergy,thesolarenergyseemsexploitedmorepopularlybecauseofitsadvantages.Therearemanyresearchprojectsaimingatefficientlyexploitssolaren
7、ergyhavebeenintroduced.Themodelofthesolarbattery(photovoltaic–PV)systemwaspresentedin[1]-[3].Concernsaboutthemethodofdeterminingmaximumpowerpointtracking(MPPT)ofthePVmodulewerepresentedbyKH.Husseinetal.[4].IssuesrelatedtooptimumconfigurationofPV-moduleshavealsoreceivedattention
