太阳光发电系统介绍.ppt

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1、太陽光發電系統介紹Solarcell篇MotechIndustriesInc.1Solarcell種類種類備註1.CrystallinesiliconsolarcellA.MonocrystallineB.Multicrystalline88%Market數百micronsC-Si2.ThinfilmsolarcellA.AmorphoussiliconB.Polycrystallinematerals12%Market1microna-Si(amorphous)C1.CdTeC2.Copperindiumdiselenide(CISorCIGS)金屬與另一惰

2、性金屬接觸時所產生之電化腐蝕現象2SolarCell製作A.將n-type摻雜，塗佈在p-type之表面。B.印刷導引線(光與電阻性損失最小)最大光吸收及電流收集。3price信賴度矽Single15~24BA+Multi10~18AAa-Si8~13A+A化合物GaAs19~32B-A+CdTe10~15AACuInSe210~12AA染料TiO27~11A+B有機半導體2以下A+B-Solarcell比較4PVModulePerformanceRating測試環境1.Thepeakwatt(Wp)ratingA.TempB.Solarradiation(

3、AM1.5)但如此實驗室的狀態不實際。2.NOCT-normaloperatingcelltemperature在一定之室外溫度下所測得之最大功率，雖較Wp為低，但較真實。3.AMPMstandardglobal-averageday:lightlevel,ambienttemperature,airmass51.PowerOutput：一天內產生之peakpoweroravgpower。(watts)2.EnergyOutput：(Wh)在一定之週期下評估以上3項目3.Conversionefficiency：energyoutputfromarrayene

4、rgyinputfromsun評價單位：1EEE、ASTM(AmericanSocietyforTestingandMaterials)ABCWh/m2Wh/KgWh/$x100%ElectricalPerformance6影響日照的因素7光波頻譜8VIPoweriseithergeneratedordissipated,dependingonthequadrantyouarein.1STQuadrant:Dissipation3DQuadrant:Dissipation2NDQuadrant:Generation4THQuadrant:Generation9

5、IVDarkCharacteristicLightCharacteristicIVPowerGeneratingRegionPowerDissipatingRegionPowerDissipatingRegion10TheVIcharacteristicofasolarcellisusuallydisplayedlikethis:VIVIThecoordinatesystemisflippedaroundthevoltageaxis.11PowerisafunctionofpositionalongtheVIcharacteristic.Attheinterc

6、epts,itisminimum-zero-increasingtoamaxnearthekneeofthecurve.12Set#1:ISC,PMAX,VOC(0.5V,0mA)VI=0mW(0.43V,142mA)VI=61mWISCVOCPMAX(0V,150mA)VI=0mWSometypicalvalues13TheshortcircuitcurrentISCisalinearfunctionofsunlightintensity.TheopencircuitvoltageVOCisnot.(VOCisweaklydependentont

7、emperature.)RecallfromPartIthatsunlightintensityismeasuredintermsofasolarconstantwithunitssuchasmW/cm2.14I=ISCR=0Doesitsurpriseyouthatthecurrentatshortcircuitisnotinfinite?Orthatacurrentcanflowwithnovoltage?Wheredoestheenergyoriginate?AnswertoQuestion#1:15I=0R=AnswertoQuestion#2:+_

8、V=VOC16ISCVOCHyperb