太阳能跟踪系统：太阳能电池有效利用外文翻译

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1、大学毕业设计外文翻译SolarTrackingSystem:MoreEfficientUseofSolarPanelsAbstract--Thispapershowsthepotentialsystembenefitsofsimpletrackingsolarsystemusingasteppermotorandlightsensor.Thismethodisincreasingpowercollectionefficiencybydevelopingadevicethattracksthesuntokeepthepanelatarigh

2、tangletoitsrays.Asolartrackingsystemisdesigned,implementedandexperimentallytested.Thedesigndetailsandtheexperimentalresultsareshown.Keywords--RenewableEnergy,PowerOptimizationⅠ.IntroductionExtractinguseableelectricityfromthesunwasmadepossiblebythediscoveryofthephotoelectr

3、icmechanismandsubsequentdevelopmentofthesolarcellasemi-conductivematerialthatconvertsvisiblelightintoadirectcurrent.Byusingsolararrays,aseriesofsolarcellselectricallyconnected,aDCvoltageisgeneratedwhichcanbephysicallyusedonaload.Solararraysorpanelsarebeingusedincreasingly

4、asefficienciesreachhigherlevels,andareespeciallypopularinremoteareaswhereplacementofelectricitylinesisnoteconomicallyviable.Thisalternativepowersourceiscontinuouslyachievinggreaterpopularityespeciallysincetherealisationoffossilfuel'sshortcomings.Renewableenergyintheformof

5、electricityhasbeeninusetosomedegreeaslongas75or100yearsago.SourcessuchasSolar,Wind,HydroandGeo-thermalhaveallbeenutilisedwithvaryinglevelsofsuccess.Themostwidelyusedarehydroandwindpower,withsolarpowerbeingmoderatelyusedworldwide.Thiscanbeattributedtotherelativelyhighcosto

6、fsolarcellsandtheirlow16大学毕业设计外文翻译conversionefficiency.Solarpowerisbeingheavilyresearched,andsolarenergycostshavenowreachedwithinafewcentsperkW/hofotherformsofelectricitygeneration,andwilldropfurtherwithnewtechnologiessuchastitanium-oxidecells.Withapeaklaboratoryefficienc

7、yof32%andaverageefficiencyof15-20%,itisnecessarytorecoverasmuchenergyaspossiblefromasolarpowersystem.Thisincludesreducinginverterlosses,storagelosses,andlightgatheringlosses.Lightgatheringisdependentontheangleofincidenceofthelightsourceprovidingpower(i.e.thesun)tothesolar

8、cell'ssurface,andtheclosertoperpendicular,thegreaterthepower.Ifaflatsolarpanelismountedonlevelgr