Lub zog tso zis ntawm lub chaw nres tsheb fais fab cuam tshuam li cas?
Tus nqi ntawm hnub ci hluav taws xob
Thaum hloov dua siab tshiab ntawm photovoltaic cell modules tas li, lub zog tsim hluav taws xob ntawm photovoltaic systems 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
Kev suav cov mis: 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 ntawm no, roj teeb cheeb tsam thiab photoelectric conversion efficiency. Kev hloov dua siab tshiab ntawm no muaj kev cuam tshuam ncaj qha rau lub zog tsim hluav taws xob ntawm qhov chaw nres tsheb fais fab.
Cov khoom sib txuam poob
Txhua qhov kev sib txuas ntawm series yuav ua rau poob tam sim no vim qhov sib txawv tam sim no, thiab txhua qhov kev sib txuas ua ke yuav ua rau tsis muaj hluav taws xob vim qhov sib txawv ntawm cov khoom sib txawv. Kev poob tuaj yeem ncav cuag ntau dua 8 feem pua.
Txhawm rau txo qis qhov sib piv thiab nce lub zog tsim hluav taws xob ntawm lub chaw nres tsheb fais fab, cov hauv qab no yuav tsum tau them rau:
1. Txhawm rau txo qhov tsis sib xws, sim siv cov khoom siv nrog tib lub sijhawm tam sim no hauv koob;
2. Lub attenuation ntawm cov khoom yuav tsum ua kom zoo ib yam li qhov ua tau;
3. Kev rho tawm diode;
Xyuas kom muaj qhov cua zoo ntawm cov khoom siv
Raws li cov ntaub ntawv, thaum kub nce los ntawm 1 degree, lub siab tshaj plaws tso zis hwj chim ntawm crystalline silicon photovoltaic module pab pawg neeg txo los ntawm 0.04 feem pua. Yog li ntawd, nws yog ib qho tsim nyog kom tsis txhob muaj qhov kub thiab txias ntawm lub zog tsim hluav taws xob thiab tswj kom muaj cua zoo.
Kev poob ntawm cov plua plav yuav tsum tsis txhob underestimated
Lub vaj huam sib luag ntawm crystalline silicon module yog tempered iav, uas yog raug rau huab cua ntev, thiab cov organic teeb meem thiab ib tug ntau ntawm cov plua plav yuav ib txwm sau. Cov plua plav ntawm qhov chaw thaiv lub teeb, uas yuav txo qis cov txiaj ntsig ntawm cov khoom siv thiab cuam tshuam ncaj qha rau lub zog tsim.
Nyob rau tib lub sijhawm, nws kuj tseem tuaj yeem ua rau "kub qhov chaw" cuam tshuam ntawm cov khoom, ua rau cov khoom puas tsuaj.
Maximum Output Power Tracking (MPPT)
Muaj MPPT cov ntsuas kev ua tau zoo hauv cov inverter specifications, qee qhov cim nrog 99 feem pua, thiab qee qhov cim nrog 99.9 feem pua. Peb txhua tus paub tias MPPT kev ua tau zoo txiav txim siab qhov tseem ceeb ntawm photovoltaic inverter lub zog tsim hluav taws xob, thiab nws qhov tseem ceeb tshaj qhov ua tau zoo ntawm photovoltaic inverter nws 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 siv txoj kev twg los xij, ua ntej ntsuas lub zog hloov ntawm cov khoom, thiab tom qab ntawd cuam tshuam qhov kev hloov. 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 cov kab ke yuav tsum ua kom zoo, qhov kev ua tau zoo ntawm cov kab hluav taws xob, cov hluav taws kub thiab cov nplaim hluav taws xob ua haujlwm ntawm cov kab hluav taws xob, cov dej tsis zoo thiab lub teeb pom kev ua haujlwm ntawm lub cable, hom ntawm cov tub ntxhais cable, thiab qhov loj me. ntawm kab.
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, ntxiv rau cov kev qhia ntawm tag nrho cov tshuab hluav taws xob photovoltaic thiab cov qauv ntawm cov khoom siv los ntawm cov chaw tsim khoom, cov kev qhia hauv qab no feem ntau yuav tsum tau txiav txim siab.
1. Rated tso zis zog
2. Kev kho qhov ua tau zoo ntawm cov zis voltage
3. Tshuab efficiency