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时间:2019-03-01
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1、HowtoDesignSolarPVSystemWhatissolarPVsystem?SolarphotovoltaicsystemorSolarpowersystemisoneofrenewableenergysystemwhichusesphotovoltaic(PV)modulestoconvertsunlightintoelectricity・Theelectricitygeneratedcanbestoredoruseddirectly,fedbackintogridlineorcombinedwithoneormoreotherelectricitygenerators
2、ormorerenewableenergysource・SolarPVsystemisveryreliableandcleansourceofelectricitythatcansuitawiderangeofapplicationssuchasresidenee,industry,agriculture,livestock,etc.MajorsystemcomponentsSolarPVsystemineludesdifferentcomponentsthatshouldbeselectedaccordingtoyoursystemtype,sitelocationandappli
3、cations.ThemajorcomponentsforsolarPVsystemaresolarchargecontroller,inverter,batterybank,auxiliaryenergysourcesandloads(appliances).PVmoduleconvertssunlightintoDCelectricity.SolarchargecontrollerregulatesthevoltageandcurrentcomingfromthePVpanelsgoingtobatteryandpreventsbatteryoverchargingandprol
4、ongsthebatterylife・InverterconvertsDCoutputofPVpanelsorwindturbineintoacleanACcurrentforACappliancesorfedbackintogridline.Batterystoresenergyforsupplyingtoelectricalapplianceswhenthereisademand.LoadiselectricalappliancesthatconnectedtosolarPVsystemsuchaslights,radio,TV,computer/efrigerator,etc.
5、Auxiliaryenergysources-isdieselgeneratororotherrenewableenergysources.SolarPVsystemsizing1.DeterminepowerconsumptiondemandThefirststepindesigningasolarPVsystemistofindoutthetotalpowerandenergyconsumptionofallloadsthatneedtobesuppliedbythesolarPVsystemasfollows:1.1CalculatetotalWatt-hoursperdayf
6、oreachapplianceused.AddtheWatt-hoursneededforallappliancestogethertogetthetotalWatt-hoursperdaywhichmustbedeliveredtotheappliances.1.2CalculatetotalWatt-hoursperdayneededfromthePVmodules.MultiplythetotalappliancesWatt-hoursperdaytimes1.3(theenergylostinthesystem)togetthetotalWatt-hoursperdaywhi
7、chmustbeprovidedbythepanels.2.SizethePVmodulesDifferentsizeofPVmoduleswillproducedifferentamountofpower.TofindoutthesizingofPVmodule,thetotalpeakwattproducedneeds・Thepeakwatt(Wp)produceddependsonsizeofthePVmoduleandclimateofsitelo
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