3、oltaicAutomaticTrackingSystemAbstractThesolarenergyhasanenormousdevelopingapplicationcapacityasonekindofgreenrenewableenergysourcewhichcanbecontinuouslyusedforever.But there is tremendous relationship between photovoltaic cells output characteristicsand the change of external enviro
4、nmental factors,currentlytheefficiencyofPVcellsisnotonlylowbutalsoexpensiveon a large scale ofproduction.Thephotovoltaicautomaticallytrackingdevicecanraisethesolarenergyutilizationrateandbringdownthecostofthesolarelectricalenergygeneration.Precisesolartrackingmechanismcanmakesolarpa