Tsis yog txhua lub tuam txhab hluav taws xob photovoltaic muaj tib lub zog tsim hluav taws xob. Yuav ua li cas photovoltaic fais fab nroj tsuag txhim kho lub zog tsim efficiency? Sib nrug los ntawm yam xws li cov hnub ci hluav taws xob thiab lub kaum sab xis ntawm photovoltaic cell modules, dab tsi yog qhov cuam tshuam? Qhov xwm txheej zoo li cas? Cia peb kawm ua ke.
Yuav ua li cas photovoltaic fais fab nroj tsuag txhim kho lub zog tsim efficiency?
Tus nqi ntawm hnub ci hluav taws xob
Nyob rau hauv cov xwm txheej uas kev hloov dua siab tshiab ntawm photovoltaic cell modules yog tas li, lub zog tsim hluav taws xob ntawm photovoltaic system yog txiav txim siab los ntawm kev siv hluav taws xob hnub ci. Raws li ib txwm muaj, kev siv hluav taws xob ntawm hnub ci hluav taws xob los ntawm cov tshuab photovoltaic tsuas yog kwv yees li 10 feem pua. Yog li coj mus rau hauv tus account qhov kev siv ntawm hnub ci hluav taws xob, spectral yam ntxwv, thiab huab cua puag.
Lub kaum sab xis ntawm photovoltaic cell module
Lub kaum sab xis ntawm azimuth ntawm photovoltaic modules feem ntau yog xaiv nyob rau sab qab teb kev taw qhia, thiaj li ua kom lub zog loj tshaj plaws rau ib chav tsev muaj peev xwm ntawm qhov chaw nres tsheb photovoltaic. Tsuav nws nyob hauv ± 20 degree ntawm sab qab teb, nws yuav tsis muaj kev cuam tshuam ntau rau kev tsim hluav taws xob. Yog tias muaj kev tso cai, nws yuav tsum yog 20 degree sab qab teb sab hnub poob kom deb li deb tau.
PV module efficiency thiab zoo
Cov mis laij lej: theoretical zog tsim=tag nrho txhua xyoo nruab nrab hnub ci hluav taws xob * tag nrho cov roj teeb cheeb tsam * photoelectric conversion efficiency, muaj ob yam nyob rau hauv lub roj teeb cheeb tsam thiab photoelectric hloov dua siab tshiab efficiency, lub conversion efficiency muaj ib tug ncaj qha cuam tshuam rau lub hwj chim tiam ntawm lub chaw nres tsheb fais fab.
Cov khoom sib txuam poob
Txhua qhov kev sib txuas yuav ua rau poob tam sim no vim qhov sib txawv ntawm cov khoom tam sim no, thiab txhua qhov kev sib txuas ua ke yuav ua rau tsis muaj hluav taws xob vim qhov sib txawv ntawm qhov sib txawv ntawm cov khoom. Kev poob tuaj yeem ncav cuag ntau dua 8 feem pua. Yuav kom txo tau qhov sib txuam poob thiab ua kom lub zog tsim hluav taws xob muaj peev xwm ntawm qhov chaw nres tsheb fais fab, cov hauv qab no yuav tsum tau them nyiaj rau: 1. Txhawm rau txo qhov kev sib tw poob, sim siv cov khoom siv nrog tib lub tam sim no hauv series; 2. Lub attenuation ntawm cov khoom yuav tsum zoo ib yam li qhov ua tau; 3. Kev rho tawm diode.
kub (qhov cua)
Qee cov ntaub ntawv qhia tias thaum qhov kub thiab txias nce 1 degree, qhov siab tshaj plaws tso zis hluav taws xob ntawm crystalline silicon photovoltaic module pab pawg txo qis los ntawm 0.04 feem pua. Yog li ntawd, nws yog ib qho tsim nyog kom tsis txhob muaj kev cuam tshuam ntawm qhov kub thiab txias ntawm lub zog tsim hluav taws xob thiab tswj xyuas qhov cua kom zoo.
Kev poob ntawm cov plua plav tsis tuaj yeem kwv yees
Lub vaj huam sib luag ntawm crystalline silicon module yog tempered iav. Yog tias nws raug huab cua ntev ntev, cov organic teeb meem thiab cov plua plav ntau yuav ib txwm tsim. Cov plua plav ntawm qhov chaw thaiv lub teeb, uas yuav txo tau cov zis efficiency ntawm lub module thiab ncaj qha cuam tshuam rau lub zog tsim. Nyob rau tib lub sijhawm, nws kuj tseem tuaj yeem ua rau "kub qhov chaw" cuam tshuam ntawm cov khoom, uas ua rau muaj kev puas tsuaj rau cov khoom.
Duab ntxoov ntxoo, daus npog
Nyob rau hauv tus txheej txheem ntawm qhov chaw xaiv ntawm qhov chaw nres tsheb fais fab, peb yuav tsum tau them sai sai rau lub shielding ntawm lub teeb. Zam tej thaj chaw uas lub teeb occlusion yuav tshwm sim. Raws li lub hauv paus ntsiab lus ntawm Circuit Court, thaum lub Cheebtsam txuas nrog nyob rau hauv series, tam sim no yog txiav txim los ntawm qhov tsawg tshaj plaws block, yog li yog hais tias muaj ib tug duab ntxoov ntxoo ntawm ib lub block, nws yuav cuam tshuam rau lub zog tsim ntawm cov khoom. Ib yam li ntawd, lub caij ntuj no daus yuav tsum tau muab tshem tawm hauv lub sijhawm.
Maximum tso zis zog nrhiav (MPPT)
MPPT kev ua tau zoo yog qhov tseem ceeb hauv kev txiav txim siab lub zog tsim hluav taws xob ntawm photovoltaic inverters, thiab nws qhov tseem ceeb tshaj qhov ua tau zoo ntawm photovoltaic inverters lawv tus kheej. MPPT efficiency yog sib npaug rau hardware efficiency multiplied los ntawm software efficiency. Kev ua haujlwm kho vajtse feem ntau yog txiav txim siab los ntawm qhov tseeb ntawm qhov ntsuas tam sim no thiab cov qauv ntsuas hluav taws xob; lub software efficiency yog txiav txim los ntawm cov sampling zaus. Muaj ntau txoj hauv kev los siv MPPT, tab sis txawm tias siv txoj kev twg los xij, ua ntej ntsuas lub zog hloov ntawm cov khoom, thiab tom qab ntawd cuam tshuam qhov kev hloov pauv. Cov khoom tseem ceeb yog tam sim no sensor, nws qhov tseeb thiab linearity yuam kev yuav ncaj qha txiav txim siab qhov nyuaj ntawm kev ua haujlwm, thiab cov qauv zaus ntawm cov software kuj txiav txim siab los ntawm qhov tseeb ntawm cov khoom siv.
Txo cov kab poob
Nyob rau hauv lub photovoltaic system, cables account rau ib tug me me, tab sis lub hwj chim ntawm cables nyob rau hauv lub tsim hluav taws xob tsim tsis tau ignored. Nws raug pom zoo tias txoj kab poob ntawm DC thiab AC circuits ntawm lub kaw lus yuav raug tswj tsis pub dhau 5 feem pua. Cov kab hluav taws xob hauv lub cev yuav tsum ua kom zoo, kev ua haujlwm rwb thaiv tsev ntawm lub cable, kev ua haujlwm kub-tiv taus thiab nplaim hluav taws-retardant kev ua tau zoo ntawm cov cable, kev ua haujlwm ntawm cov dej noo thiab lub teeb-pov thawj ntawm cov cable, hom cable core, thiab qhov loj ntawm lub cable.
Inverter efficiency
Lub photovoltaic inverter yog lub ntsiab tivthaiv thiab tseem ceeb ntawm lub photovoltaic system. Txhawm rau kom muaj kev ua haujlwm zoo ntawm lub chaw nres tsheb fais fab, kev teeb tsa kom raug thiab xaiv cov inverter yog qhov tseem ceeb tshwj xeeb. Ntxiv rau qhov kev teeb tsa ntawm lub inverter raws li ntau yam kev qhia ntawm tag nrho cov khoom siv hluav taws xob photovoltaic thiab xa mus rau cov khoom lag luam qauv phau ntawv muab los ntawm cov chaw tsim khoom, cov kev qhia hauv qab no feem ntau yuav tsum tau xav txog: 1. Rated tso zis fais fab 2. Kev hloov kho ntawm cov zis voltage 3, tag nrho efficiency 4. Startup kev ua tau zoo