商用太阳

太阳能 2008-6-7 0:19:50

pvcellsconsistofsemiconductorlayersmadefromcrystallinesiliconorgalliumarsenide,andtransformsunlightintodcelectricity.

atypicalsolarcellconsistsofaglasscoverforthecell,anantireflectivelayertotakefulladvantageofsunlight,afrontandbackcontact,andsemiconductorlayers.

apvcellcombinesnegativeandpositivesemiconductorlayers,connectedthroughajunction.whenexposedtosunlight,electronsmovefromonelayertoanotherproducinganelectriccurrentinthejunctionthatisthencarriedawaythroughacircuittoaninverter.

byitself,asinglepvcelldoesnotproduceagreatamountofelectricity,soindividualcellsarewiredtogethertocreateasolarpanel.alargenumberofpanelsarethenconnectedtoproducelargeamountsofelectricity.

solarpanelsareconnectedwithsystemcomponentssuchasxantrexpvinverterstoconvertthedcpowerproducedbythepanelstoacelectricityforconsumeruse.

duringthelasttwentyyears,thenumberofresidentialandcommercialpvsystemsinstalledworldwidehasincreaseddramatically,growingatarateofapproximately20percenteachyear.

research,suchasxantrexsworkonthehighreliabilityinverterfordistributedpowerapplications,willsupportthecontinueduseoflargescalesolarsystemsbyimprovingreliability,reducingcostandincreasingperformance.

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