Solar Energy System with Digital Controller for Grid Connected Systems-中国期刊网

摘要 Thesolarphotovoltaic(PV)moduleoutputvoltagechangesaccordingtothevariationoflightintensityandtemperature.ThispaperpresentstheimplementationofanautomaticdigitalcontrollerofaDC-DCboostconverterwithoutbatteriesforasolarcellmodulebyusingaperipheralinterfacecontroller,whichformsaclosedloop,tocontroltheON-OFFperiodoftheswitchingpulse.TheoutputofDC-DCconverterismaintainedbyautomaticallyincreasingordecreasingthepulsewidth.Toproducethepulsewidthmodulation(PWM),themicrocontrollerisprogrammedaccordingtotherequireddutycycleforthepowerswitch.ThePWMONperiodisincreasedwiththedecreaseinthePVvoltageandvice-versa.TheinputvoltagetotheinverterismaintainedconstantlyandisconvertedintoanACsignalbyusingthemetal-oxide-semiconductorfieldeffecttransistor(MOSFET)H-bridgeoperatedinthesinusoidalpulsewidthmodulationmodebyusingaPIC(peripheralinterfacecontroller)microcontroller.ThegeneratedACsignalcanbeconnectedtotheACgridortotheACload.ThesimulatedresultsbyusingProteus8andhardwareimplementedresultsverifytheeffectivenessoftheproposedcontroller.

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Solar Energy System with Digital Controller for Grid Connected Systems

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Solar Energy System with Digital Controller for Grid Connected Systems

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