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1、萬(wàn)方數(shù)據(jù)AbstractInthecontextofglobalenvironmentaldegradationandaincreasingshortageofenergy，thedeansolarenergyhasreceivedextensiveattention,andthephotovoltaicindustryhasrapidlydeveloped．Miniaturephotovoltaicsystemhasbeendevelopingrapidly。Inthephotovoltaicp
2、owergenerationsystem,duetotheproblemssuchasthephotocrackandshadowofthephotovoltaicpanels，outputofSinglepieceofphotovoltaicmoduleswillbeaffected．Andthiswillcauseaseriousdeclineintheefficiencyofphotovoltaicpowergenerationsystems．Therefore，thepowergenera
3、tionequipmentwhichisconnectingmicroinverterwithasinglephotovoltaicmodulestogetherandisequippedwithMPPTcontroltechnologycanachievemaximizesolarpowergeneration．MicroPVsystemcanbeproducemodular,flexiblesystemexpansion,easytomaintain,withgoodpotentialford
4、evelopment．Theinterleavedflybackmicroinvertersastheresearchobjectinthispaper,studytheworkingprinciple，controltechnique，MPPTandislandingdetectiontechnology．Firstly,analyzetheflybackconverterandinterleavedflybackcircuitstructureandworkingprinciple，useth
5、eactiveclampcircuittosolvetheproblemoftransformerleakageenergyproblem，thenanalyzetheworkingprocessofactiveclampconverterandlastselecttheactiveclampstaggeredflybackcircuittopologyasthemainarticle．BasedonthecurrentPIcontrollerandnetworkcontrolstrategy,t
6、hecontrolissimpleandreliableandcanoutputhighqualityelectriccurrent．Basedoncomprehensiveconsideration，thedisturbanceobservermethodisusedtodothemaximumpowerPOinttrackingsystemtoenlargetheoutputpower．Anti-islandingstrategyistoBSeactiveislandingdetectionB
7、equencyshiftmethodtoensurepowersupplyandequipmentsafety．Usingmaflabtoestablishcontrolsystemsimulationmodeltoverifythecorrectnessofthetheory．Atlast,designthehardwarecircuitofthemicroinverter,calculateandselecttheparameterofflybacktransformerandmastersw
8、itchtubesandothercomponentsandfmishthesoftwaredesign．Figure【39】table【1】reference【54】Keywords：PV；microinverters；interleavedflybacktransform：ActiveClampChinesebookscatalog：TM615；Ⅲ萬(wàn)方數(shù)據(jù)目錄摘要?????????????????????????????????IAbstract．．．．．．．?．．．．．．．．
