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PHOTOVOLTAICSYSTEMDESIGN1INTRODUCTIONAFTERPVWORKERSUNREMITTINGEFFORTS,SOLARCELLPRODUCTIONTECHNOLOGYCONSTANTLYIMPROVE,ANDINCREASINGLYWIDELYUSEDINVARIOUSFIELDSPOSTSANDTELECOMMUNICATIONSINPARTICULAR,THETELECOMMUNICATIONSINDUSTRYINRECENTYEARSBECAUSEOFTHERAPIDDEVELOPMENTOFCOMMUNICATIONPOWERREQUIREMENTSHAVEBECOMEMORESOPHISTICATED,SOSTABLEANDRELIABLEPOWERSOLARENERGYISWIDELYUSEDINCOMMUNICATIONSANDHOWTHEVARIOUSREGIONSOFSOLARRADIATIONCONDITIONS,TOTHEDESIGNOFBOTHECONOMICANDRELIABLEPHOTOVOLTAICPOWERSYSTEM,WHICHISONEOFTHEMANYEXPERTSANDSCHOLARSSTUDYTHELONGSTANDINGISSUE,BUTTHEREAREMANYEXCELLENTRESEARCHRESULTS,FORTHEDEVELOPMENTOFCHINASPHOTOVOLTAICLAIDASOLIDFOUNDATIONTHEAUTHOROFTHESTUDYATTHEDESIGNMETHODOLOGYOFEXPERTSFOUNDTHATTHEDESIGNHASONLYCONSIDEREDTHESELFMAINTENANCEOFBATTERYTIMETHATIS,THELONGESTCONSECUTIVERAINYDAYS,WITHOUTTAKINGINTOACCOUNTTHELOSSOFELECTRICBATTERIESASSOONASPOSSIBLEAFTERTHERECOVERYTIMEIE,TWOSETSOFTHELONGESTCONTINUOUSRAINDAYS,THESHORTESTINTERVALBETWEENTHEDAYSTHISPROBLEMPARTICULARLYINTHESOUTHERNCHINAREGIONSHOULDPAYGREATATTENTIONTOTHESOUTHERNREGIONBECAUSEOFOURRAINYDAYISLONGTOO,ANDFORTHECONVENIENCEOFINDEPENDENTPHOTOVOLTAICPOWERSYSTEM,BECAUSETHEREISNOOTHEREMERGENCYBACKUPPOWERPROTECTION,SOTHISPROBLEMSHOULDBEINCLUDEDINTHEDESIGNCONSIDEREDTOGETHERINTHISPAPER,ANINTEGRATEDDESIGNMETHODOFTHEPREVIOUSADVANTAGES,COMBINEDWITHTHEAUTHOROVERTHEYEARSACTUALLYENGAGEDINTHEDESIGNOFPHOTOVOLTAICPOWERSYSTEMSEXPERIENCE,THEINTRODUCTIONOFTWOSETSOFTHELONGESTCONSECUTIVERAINYDAYS,THESHORTESTINTERVALBETWEENTHENUMBEROFDAYSASTHEBASISFORTHEDESIGNOFONE,ANDCOMPREHENSIVECONSIDERATIONOFTHETHEIMPACTOFSOLARRADIATIONCONDITIONSOFTHEFACTORSTHATMADESOLARCELLS,THEFORMULAFORCALCULATINGBATTERYCAPACITY,ANDRELATEDDESIGNMETHODS2MANYFACTORSAFFECTTHEDESIGNSUNSOLARCELLSONTHEGROUNDSQUAREONTHERADIATIONOFLIGHTSPECTRUM,LIGHTINTENSITYBYTHETHICKNESSOFTHEATMOSPHEREIEAIRQUALITY,GEOGRAPHICLOCATION,THELOCATIONOFTHECLIMATEANDWEATHER,TERRAINANDSURFACEFEATURESSUCHASTHEIMPACTOFITSENERGYINONEDAY,JANUARYANDAYEAROFGREATCHANGE,OREVENYEARSBETWEENTHETOTALANNUALAMOUNTOFRADIATIONTHEREWEREALSOLARGEDIFFERENCESSQUARESOLARPHOTOELECTRICCONVERSIONEFFICIENCY,BYTHEBATTERYITSELF,TEMPERATURE,SUNLIGHTINTENSITYANDBATTERYVOLTAGEFLUCTUATIONS,WHICHISTHREEINONEDAYWILLCHANGE,SOSQUAREPHOTOVOLTAICSOLARCELLCONVERSIONEFFICIENCYISALSOVARIABLEBATTERYISCHARGINGINTHEFLOATSTATE,WITHTHESQUAREOFITSVOLTAGEOUTPUTANDLOADPOWERCONSUMPTIONCHANGESBATTERIESTOPROVIDEENERGYISALSOAFFECTEDBYENVIRONMENTALTEMPERATURESOLARENERGYBATTERYCHARGEANDDISCHARGECONTROLLERMADEBYTHEELECTRONICCOMPONENTSMANUFACTURER,ITISALSONECESSARYENERGY,WHILETHEUSEOFCOMPONENTSOFPERFORMANCE,QUALITY,ETCISALSORELATEDTOTHESIZEOFENERGYCONSUMPTION,THUSAFFECTINGTHEEFFICIENCYOFCHARGELOADOFELECTRICITY,BUTALSOASDETERMINEDBYUSES,SUCHASCOMMUNICATIONSRELAYSTATIONS,UNMANNEDWEATHERSTATIONSANDSOON,HAVEAFIXEDPOWEREQUIPMENTSOMEEQUIPMENTSUCHASALIGHTHOUSE,BEACONLIGHTS,CIVILIANPOWERCONSUMPTIONSUCHASLIGHTINGANDEQUIPMENTPOWERCONSUMPTIONAREOFTENCHANGINGTHEREFORE,THESOLARPOWERSYSTEMDESIGN,THENEEDTOCONSIDERMANYFACTORSANDCOMPLEXCHARACTERISTICSARETHEDATAUSEDINMOSTPREVIOUSSTATISTICALDATA,THESTATISTICALDATAMEASUREMENTANDDATASELECTIONAREIMPORTANTDESIGNERSOFTHEMISSIONAREINTHESOLARCELLMATRIXUNDERTHECONDITIONSOFTHEENVIRONMENTTHATIS,THESCENEOFTHEGEOGRAPHICALLOCATION,SOLARRADIATION,CLIMATE,WEATHER,TERRAINANDSURFACEFEATURES,ETC,THEDESIGNOFSOLARCELLANDBATTERYPOWERSYSTEMMATRIXISWESHOULDPAYATTENTIONTOECONOMICEFFICIENCY,BUTALSOTOENSURESYSTEMRELIABILITYLOCATIONOFAPARTICULARENERGYOFSOLARRADIATIONDATATOMETEOROLOGICALINFORMATIONPROVIDEDTHEBASISFORTHEDESIGNOFSOLARCELLSUSEDPHALANXTHESEMETEOROLOGICALDATAREQUIREDTOCHECKTHEACCUMULATIONOFSEVERALYEARSOREVENDECADESONAVERAGEVARIOUSREGIONSONTHEEARTHBYSUNLIGHTANDRADIATIONCHANGESINTHECYCLEFORTHEDAY,24HINASQUAREAREAOFSOLARCELLSALSOHAVETHEPOWEROUTPUT24HOFTHECYCLICALCHANGESINITSLAWSANDSUNRADIATIONINTHEREGION,THECHANGESOFTHESAMEHOWEVER,CHANGESINWEATHERWILLAFFECTTHESQUAREOFTHEGENERATINGCAPACITYIFYOUHAVEAFEWDAYSCONSECUTIVERAINDAYS,ALMOSTSQUAREONTHEPOWERGENERATIONSHOULDNOTRELYONBATTERIESTOPOWER,ANDBATTERYDEPTHOFDISCHARGEANDTHENNEEDTOBEADDEDASSOONASPOSSIBLEGOODMOSTDESIGNERSINORDERTOWEATHERTHESUNTOPROVIDEADAILYTOTALOFRADIATIONENERGYORTHEANNUALAVERAGESUNSHINEHOURSASTHEDESIGNOFTHEMAINDATAEACHYEARBECAUSEOFAREGIONALDATAISNOTTHESAMEASFORTHESAKEOFRELIABILITYSHOULDBETAKENWITHINTHELASTDECADEOFTHEMINIMUMDATAUNDERTHELOADOFELECTRICITYCONSUMPTION,INSUNSHINEANDNOSUNSHINEWHENBATTERYPOWERISREQUIREDWEATHERPROVIDEDBYSOLARPOWERORTHETOTALAMOUNTOFRADIATIONTHETOTALSUNSHINEHOURSONTHEBATTERYCAPACITYOFTHESIZEOFTHEDECISIONISINDISPENSABLEDATAPHALANXOFTHESOLARCELL,THELOADSHOULDINCLUDEALLPOWERSYSTEMDEVICESEXCEPTFORUSEBUTALSOHAVEABATTERYANDELECTRICALCIRCUITS,CONTROLLERS,ETCCONSUMPTIONMATRIXCOMPONENTSOFTHEOUTPUTPOWERANDTHENUMBEROFSERIESPARALLEL,ANDSERIESAREREQUIREDINORDERTOOBTAINTHEOPERATINGVOLTAGE,INPARALLELARENECESSARYINORDERTOOBTAINTHECURRENTWORK,ANAPPROPRIATENUMBEROFCOMPONENTSTHROUGHWHICHTHECOMPOSITIONOFSERIESPARALLELCONNECTIONOFSOLARCELLSREQUIREDPHALANX3DESIGNEDCAPACITYOFBATTERIESSOLARCELLPOWERSUPPLYSYSTEMISTHEBATTERYENERGYSTORAGEDEVICESANDSOLARCELLBATTERIESAREUSUALLYSQUAREMATCHINGJOBATFLOATINGSTATE,WITHTHESQUAREOFITSVOLTAGEOUTPUTANDLOADPOWERCONSUMPTIONCHANGESITSLOADCAPACITYTHANTHEPOWERREQUIREDISMUCHGREATERBATTERIESTOPROVIDEENERGYISALSOAFFECTEDBYENVIRONMENTALTEMPERATUREANDSOLARCELLSINORDERTOMATCHTHEJOBREQUIREMENTSOFLONGLIFEBATTERYANDEASYMAINTENANCE1BATTERYSELECTIONANDBEABLETOSUPPORTTHEUSEOFSOLARCELLS,MANYDIFFERENTTYPESOFBATTERIES,WIDELYUSEDATPRESENTHAVELEADACIDMAINTENANCEFREEBATTERIES,ORDINARYLEADACIDBATTERIESANDALKALINENICKELCADMIUMBATTERIESOFTHREEDOMESTICUSEAREMAINLYMAINTENANCEFREELEADACIDBATTERIES,BECAUSEOFITSINHERENTFREEMAINTENANCEOFPROPERTIESANDLESSPOLLUTINGTOTHEENVIRONMENTCHARACTERISTICS,ITISSUITABLEFORTHEPERFORMANCEOFRELIABLEPOWERSYSTEMSSOLARPOWER,ESPECIALLYINUNATTENDEDWORKSTATIONSORDINARYLEADACIDBATTERIESREQUIREREGULARMAINTENANCEBECAUSEOFITSLARGERENVIRONMENTALPOLLUTION,SOTHEMAINSUITABLEFORTHEMAINTENANCEOFTHEABILITYORHAVETHEUSEOFLOWGRADEOCCASIONSALTHOUGHALKALINENICKELCADMIUMBATTERIESHAVEBETTERLOWTEMPERATURE,OVERCHARGE,TAKEOFFPERFORMANCE,BUTBECAUSEOFTHEIRHIGHERPRICES,ONLYAPPLIESTOMORESPECIALOCCASIONS2CALCULATIONOFBATTERYCAPACITYBATTERYCAPACITYTOENSURECONTINUOUSPOWERSUPPLYISVERYIMPORTANTATONEYEAR,THEMONTHOFMATRIXGENERATIONHASVERYDIFFERENTPHALANXATTHEGENERATINGCAPACITYCANNOTMEETTHEELECTRICITYNEEDSOFTHEMONTH,TORELYONBATTERYPOWERGIVESUPPLEMENT;ELECTRICITYREQUIREDINMORETHANMONTH,ARERELYINGONBATTERIESTOSTOREEXCESSENERGYPHALANXSOINADEQUATEGENERATINGCAPACITYANDSURPLUSVALUE,ISTODETERMINETHEBASISFORONEOFTHEBATTERYCAPACITYSIMILARLY,THECONTINUOUSOVERCASTANDRAINYDAYSDURINGTHELOADOFELECTRICITYMUSTALSOBEOBTAINEDFROMTHEBATTERYTHEREFORE,THEPOWERCONSUMPTIONDURINGTHISPERIODTODETERMINETHEBATTERYCAPACITYISALSOONEOFTHEFACTORS
编号:201311171028015403    类型:共享资源    大小:37.50KB    格式:DOC    上传时间:2013-11-17
  
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