태양복사모델을 이용한 태양전지판의 최적 경사각에 대한 연구
The Study on the Optimal Angle of the Solar Panel using by Solar Radiation Model
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초록
Theangleofsolarpanelsiscalculatedusingsolarradiationmodelfortheefficientsolarpowergeneration.In idealstate,thetimeofmaximum solarradiationisrepresentedfrom 12:08to12:40duringayearatGangneung anditsaveragetimeis12:23.Themaximum solarradiationis1012W/m2and708W/m2inclearskyandcloudy sky,respectively.Solarradiation ismoresensitivetoNorth-South (N-S)slopeanglethan East-West(E-W)azimuthangle.Dailysolarradiationonoptimum angleofsolarpanelishigherthanthatonhorizontalsurface exceptfor90daysduringsummer. Inordertoapplytotherealatmosphere,theTMY (typicalmeteorologicalYear)datawhichobtainedfrom the 22solarsitesoperatedbyKMA(KoreaMeteorologicalAdministration)during11years(2000to2010)isusedas theinputdataofsolarradiationmodel.Thedistributionofcalculatedsolarradiationissimilartotheobservation,exceptinAndong,whereitisoverestimated,andinMokpoandHeuksando,whereitisunderestimated.Statistical analysisisperformedoncalculatedandobservedmonthlysolarradiationonhorizontalsurface,andthecalculation isoverestimatedfrom theobservation.Correlationis0.95andRMSE (RootMeanSquareError)is10.81MJ. Theresultshowsthatoptimum N-S slopeanglesofsolarpanelareabout2°lowerthanstationlatitude,but E-W slopeanglesarelowerthan±1°.Therearethreetypesofsolarpanels:horizontal,fixedwithoptimum slope angle,andpanelswithtrackersystem.Theenergyefficienciesareonaverage20% higheronfixedsolarpanel and60% higherontrackersolarpanelthancomparedtothehorizontalsolarpanel,respectively.
Abstract
Theangleofsolarpanelsiscalculatedusingsolarradiationmodelfortheefficientsolarpowergeneration.In idealstate,thetimeofmaximum solarradiationisrepresentedfrom 12:08to12:40duringayearatGangneung anditsaveragetimeis12:23.Themaximum solarradiationis1012W/m2and708W/m2inclearskyandcloudy sky,respectively.Solarradiation ismoresensitivetoNorth-South (N-S)slopeanglethan East-West(E-W)azimuthangle.Dailysolarradiationonoptimum angleofsolarpanelishigherthanthatonhorizontalsurface exceptfor90daysduringsummer. Inordertoapplytotherealatmosphere,theTMY (typicalmeteorologicalYear)datawhichobtainedfrom the 22solarsitesoperatedbyKMA(KoreaMeteorologicalAdministration)during11years(2000to2010)isusedas theinputdataofsolarradiationmodel.Thedistributionofcalculatedsolarradiationissimilartotheobservation,exceptinAndong,whereitisoverestimated,andinMokpoandHeuksando,whereitisunderestimated.Statistical analysisisperformedoncalculatedandobservedmonthlysolarradiationonhorizontalsurface,andthecalculation isoverestimatedfrom theobservation.Correlationis0.95andRMSE (RootMeanSquareError)is10.81MJ. Theresultshowsthatoptimum N-S slopeanglesofsolarpanelareabout2°lowerthanstationlatitude,but E-W slopeanglesarelowerthan±1°.Therearethreetypesofsolarpanels:horizontal,fixedwithoptimum slope angle,andpanelswithtrackersystem.Theenergyefficienciesareonaverage20% higheronfixedsolarpanel and60% higherontrackersolarpanelthancomparedtothehorizontalsolarpanel,respectively.
참고문헌 (9)
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