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功率信号复合调制的光伏优化器设计
Title:DesignofPowerSignalCompoundModulationforPhotovoltaicOptimizers
Abstract:
Inrecentyears,thedemandforrenewableenergysources,particularlysolarenergy,hasbeenincreasing.Photovoltaicsystemsarewidelyusedforconvertingsunlightintoelectricalenergy.However,duetovariousfactorssuchasshading,mismatchedpanelcharacteristics,andpartialcloudcover,theoverallefficiencyofaphotovoltaic(PV)systemisoftencompromised.Thispaperpresentsthedesignofpowersignalcompoundmodulationforphotovoltaicoptimizers,aimingtoimprovetheoverallperformanceandefficiencyofPVsystems.
1.Introduction
1.1Background
Theincreasingglobalenergydemandandtheneedtoreducegreenhousegasemissionshaveledtotherapidgrowthoftherenewableenergysector.Amongvariousrenewableenergysources,solarenergyisconsideredtobeoneofthemostabundantandsustainableoptions.Photovoltaicsystemsarethemostcommontechnologyforharnessingsolarenergy.However,theefficiencyandperformanceofPVsystemsareaffectedbyfactorssuchasshading,partialcloudcover,andvariationsinpanelcharacteristics.
1.2Objectives
Themainobjectiveofthispaperistodesignapowersignalcompoundmodulationtechniquetooptimizetheperformanceofphotovoltaicsystems.Byapplyingthismodulationtechnique,itisexpectedthattheoverallefficiencyofPVsystemscanbeimproved,evenunderchallengingoperatingconditions.
2.PowerSignalCompoundModulation
2.1Principle
PowersignalcompoundmodulationisatechniqueusedtoenhancetheefficiencyandperformanceofPVsystems.ItinvolvesthemodificationofthepowersignalgeneratedbythePVpanelstomitigatetheimpactofshading,partialcloudcover,andmismatchedpanelcharacteristics.
2.2Components
Thepowersignalcompoundmodulationtechniqueconsistsofseveralkeycomponents,includingashadingdetectionalgorithm,apowersignalmodificationalgorithm,andacontrolunit.TheshadingdetectionalgorithmisresponsibleforidentifyingtheshadedportionsofthePVarray,whilethepowersignalmodificationalgorithmadjuststhepowersignaltocompensatefortheshadingeffects.Thecontrolunitcoordinatestheoperationofthesecomponentstooptimizetheovera