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光伏电站直流单导线载波通信信号提取方法
Title:
MethodsforExtractingCommunicationSignalsusingSingle-conductorCarrierinPhotovoltaicPowerStations
Abstract:
Photovoltaicpowerstationsaregainingpopularityasasustainableandrenewableenergysource.Toefficientlymonitorandcontrolthesestations,itisessentialtoestablisheffectivecommunicationsystems.Onemethodtoachievethisisthroughcarriercommunicationsignalstransmittedoversingle-conductorlines.Thispaperaimstoexplorevariousmethodsforextractingcommunicationsignalsusingsingle-conductorcarrierinphotovoltaicpowerstations.
1.Introduction
Thegrowingdemandforcleanandsustainableenergyhasledtoanincreaseddeploymentofphotovoltaicpowerstations.Thesestationsgenerateelectricitybyconvertingsunlightintoelectricalenergy.Monitoringandcontrollingtheoperationsofthesepowerstationsisessentialfortheirefficientfunctioning,andtheuseofcommunicationsystemsplaysavitalroleinachievingthis.
2.CommunicationSystemsinPhotovoltaicPowerStations
Traditionally,communicationsystemsinphotovoltaicpowerstationsrelyonwiredconnectionsorwirelesstechnologiessuchasWi-Fiorcellularnetworks.However,theuseofthesemethodscanbelimitedbyfactorssuchascost,internetavailability,andreliability.Hence,theneedforalternativecommunicationsystemsarises.
3.Single-conductorCarrierCommunicationSystem
Oneefficientalternativeistheuseofsingle-conductorcarriercommunicationsystems.Thesesystemsutilizeexistingpowerlinesasthemediumfortransmittingcommunicationsignals.Bymodulatingthecarrierfrequencyontothepowerline,signalscanbetransmittedwithouttheneedforadditionalwiringorwirelessinfrastructure.
4.SignalExtractionMethods
Toextractcommunicationsignalsusingsingle-conductorcarrierinphotovoltaicpowerstations,variousmethodscanbeimplemented.Thesemethodsinclude:
4.1.AmplitudeModulation(AM)
Amplitudemodulationinvolvesmodulatingtheamplitudeofahigh-frequencycarriersignalbasedontheinputsignal.Inthismethod,thecarriersignalissuperimposedontothepowerlinesbyutilizingapowerlinecouplingdevice.Atthereceivingend,thecarriersignalcanbedemodulatedtoext