太阳能光伏发电系统结构布置改进与发电性能-研究

《太阳能光伏发电系统结构布置改进与发电性能-研究》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、AbstractABSTRACTUnderthebackgroundofenergycrisisandenvironmentalpollution，photovoltaictechnologyhavebeenwidelyusedandrapidlydeveloped,duetoitscleanandsafetyfeatures．However,itstillhasshortcomingsoflowefficiencyandhi曲cost．Tosolvetheseproblems，layoutstructureofphoto

2、voltaicpowergenerationsystemwaschanged．Inthispaper,thefixedtypephotovoltaicpowergenerationsystemwasselectedastheresearchobjectandadditionalreflectorswithdifferentstructureswereplacedbetweenthePVmodules．Basedontheprincipleofopticalreflectionandrefraction,itisfoundt

3、hatreflectorscaneffectivelyimprovethegeneratingcapacityofPVpowersystemandreducethetotalgenerationcostbyincreasingthesolarradiationonthePVmodules，thusachievingimprovementandoptimizationontheperformanceofphotovoltaicsystem．Firstlytheroofphotovoltaicpowergenerationsy

4、stemexperimentplatformandreal—timedataacquisitionsystemweredesignedinthispaper．Then,thesystemwasverifiedontheplanereflectors，nonplanarreflectors，thereflectors’materialandthereflectors’spatialarrangementthroughexperiments．Theresearchindicatesthattheoptimallayouteme

5、rgeswhenthesilvermirrorplanarreflectorhasaninclinedangleof28．70fromthehorizontal，thehypotenuselengthis1236mm，thehorizontaldistancebetweenthelowmarginandtherearPVmodulesis339mmandtheverticaldistancebetweenthelowmarginandthegroundis396mm，inthiscondition,theeffective

6、generatingcapacityofPVmodulescanbeincreasedbyabout20％．Besides，thecostofthisreflectorisonly0．4Yuanperwatt(anearly4％increaseinconstructioncosts)．Usingtheexperimentaldataandthesimulation，thereasontomakethePVmodules’generationincreasebyadditionalreflectorswasanalyzed．

7、Theanalysisrevealsthat，inpoorlightingconditions，thereflectorproducesagreaterincreaseinthegeneratingcapacityofPVmodules．Inaddition，thegrowthamplitudeofthePVmodules’generatingcapacityisincorrespondencewithvariationtendencyofthescatteringradiationshareinsolarradiatio

8、n．ThisphenomenonindicatesthatthemechanismhowreflectorsincreasethegeneratingcapacityismainlyascribedtothereflectionofscatteringlighttothePVmodules’surfac