Dab tsi cuam tshuam rau qhov siab tshaj plaws tso zis hluav taws xob ntawm photovoltaic modules?

Photovoltaic modules yog lub hauv paus tseem ceeb ntawm lub tshuab hluav taws xob photovoltaic. Nws txoj haujlwm yog hloov lub hnub ci zog rau hauv hluav taws xob hluav taws xob thiab xa mus rau lub roj teeb cia rau kev khaws cia, lossis tsav lub nra mus ua haujlwm. Rau photovoltaic modules, cov zis hluav taws xob tseem ceeb heev, yog li dab tsi cuam tshuam rau lub siab tshaj plaws tso zis hluav taws xob ntawm photovoltaic cell modules?

1. Cov yam ntxwv kub ntawm photovoltaic modules

Photovoltaic modules feem ntau muaj peb qhov kub coefficient: qhib Circuit Court voltage, luv Circuit Court tam sim no, thiab ncov lub zog. Thaum qhov kub nce siab, cov zis hluav taws xob ntawm photovoltaic modules yuav txo qis. Lub ncov kub coefficient ntawm mainstream crystalline silicon photovoltaic modules nyob rau hauv kev ua lag luam yog hais txog {{0}}.38~{4}}.44 feem pua ​​/ degree, uas yog, lub zog tsim ntawm photovoltaic modules txo los ntawm txog 0.38 feem pua ​​​​ntawm txhua qhov ntsuas kub nce. Qhov kub coefficient ntawm nyias zaj duab xis solar cells yuav zoo dua. Piv txwv li, qhov kub coefficient ntawm tooj liab indium gallium selenide (CIGS) tsuas yog -0.1 ~ 0.3 feem pua, thiab qhov kub coefficient ntawm cadmium telluride (CdTe) yog li ntawm -0.25 feem pua, uas yog zoo dua li crystalline silicon cell.

2. Kev laus thiab attenuation

Nyob rau hauv daim ntawv thov mus sij hawm ntev ntawm photovoltaic modules, yuav muaj qeeb zog lwj. Qhov siab tshaj plaws attenuation nyob rau hauv thawj xyoo yog kwv yees li 3 feem pua ​​​​, thiab txhua xyoo attenuation tus nqi yog li ntawm 0.7 feem pua ​​​​hauv 24 xyoo tom ntej. Raws li qhov kev suav no, lub zog tiag tiag ntawm photovoltaic modules tom qab 25 xyoo tseem tuaj yeem ncav cuag li 80 feem pua ​​​​ntawm thawj lub zog.

Muaj ob lub laj thawj tseem ceeb rau kev laus attenuation:

1) Lub attenuation tshwm sim los ntawm kev laus ntawm lub roj teeb nws tus kheej yog feem ntau cuam tshuam los ntawm cov roj teeb hom thiab cov txheej txheem roj teeb.

2) Lub attenuation tshwm sim los ntawm kev laus ntawm cov khoom ntim yog feem ntau cuam tshuam los ntawm cov txheej txheem tsim khoom, ntim cov ntaub ntawv thiab ib puag ncig ntawm qhov chaw siv. Ultraviolet hluav taws xob yog qhov laj thawj tseem ceeb rau kev degradation ntawm cov khoom tseem ceeb. Lub sij hawm ntev raug rau ultraviolet rays yuav ua rau cov laus thiab yellowing ntawm EVA thiab cov backsheet (TPE qauv), uas ua rau ib tug txo nyob rau hauv lub transmittance ntawm lub Cheebtsam, ua rau ib tug txo nyob rau hauv lub hwj chim. Tsis tas li ntawd, kev tawg, kub qhov chaw, cua thiab xuab zeb hnav, thiab lwm yam yog ib qho tseem ceeb uas ua rau kom muaj zog tiv thaiv lub zog attenuation.

Qhov no yuav tsum muaj cov tuam txhab tsim khoom kom tswj hwm nruj thaum xaiv EVA thiab rov qab, txhawm rau txo cov khoom siv hluav taws xob txo qis los ntawm kev laus ntawm cov khoom siv.

3. Pib lub teeb-induced attenuation ntawm cov khoom

Thawj lub teeb-induced attenuation ntawm photovoltaic modules, uas yog, lub zog tso zis ntawm photovoltaic modules poob qis heev nyob rau hauv thawj ob peb hnub ntawm kev siv, tab sis tom qab ntawd nyhav stabilize. Ntau hom roj teeb muaj qhov sib txawv ntawm lub teeb-induced attenuation:

Nyob rau hauv P-hom (boron-doped) crystalline silicon (ib leeg siv lead ua / polycrystalline) silicon wafers, lub teeb los yog tam sim no txhaj tshuaj ua rau cov tsim ntawm boron-oxygen complexes nyob rau hauv silicon wafers, uas yuav txo tau cov haiv neeg tsawg lub neej, yog li recombining ib co photogenerated carriers. thiab txo cov cell efficiency, ua rau lub teeb-induced attenuation.

Nyob rau hauv thawj ib nrab xyoo ntawm kev siv amorphous silicon hnub ci hlwb, lub photoelectric hloov dua siab tshiab efficiency yuav poob ho, thiab thaum kawg stabilize li ntawm 70 feem pua ​​​​rau 85 feem pua ​​ntawm cov thawj conversion efficiency.

Rau HIT thiab CIGS lub hnub ci hnub ci, yuav luag tsis muaj lub teeb-induced attenuation.

4. Plua plav thiab nag npog

Qhov loj-scale photovoltaic fais fab nroj tsuag feem ntau tsim nyob rau hauv cheeb tsam Gobi, qhov twg muaj cua thiab xuab zeb ntau, thiab nag los me ntsis. Nyob rau tib lub sijhawm, qhov zaus ntawm kev ntxuav tsis yog siab dhau. Tom qab siv mus ntev, nws tuaj yeem ua rau kwv yees li 8 feem pua ​​​​ntawm kev ua haujlwm.

5. Cov khoom siv tsis sib xws hauv koob

Lub series mismatch ntawm photovoltaic modules tuaj yeem piav qhia txog qhov tshwm sim ntawm lub thoob. Lub peev xwm dej ntawm lub thoob ntoo yog txwv los ntawm lub rooj tsav xwm luv tshaj plaws; thaum cov zis tam sim no ntawm photovoltaic module raug txwv los ntawm qhov qis tshaj tam sim no ntawm cov khoom series. Qhov tseeb, yuav muaj qee lub zog sib txawv ntawm cov khoom, yog li qhov tsis sib haum xeeb ntawm cov khoom yuav ua rau qee lub zog poob.

Cov ntsiab lus saum toj no yog cov ntsiab lus tseem ceeb cuam tshuam rau qhov siab tshaj plaws tso zis hluav taws xob ntawm photovoltaic cell modules, thiab yuav ua rau lub zog poob mus ntev. Yog li ntawd, tom qab kev ua haujlwm thiab kev saib xyuas ntawm cov chaw tsim hluav taws xob photovoltaic yog qhov tseem ceeb heev, uas tuaj yeem txo cov txiaj ntsig zoo los ntawm kev ua tsis tiav.
Koj paub ntau npaum li cas txog iav panels ntawm photovoltaic modules?

Lub vaj huam sib luag iav siv nyob rau hauv photovoltaic cell modules feem ntau yog tempered iav nrog cov ntsiab lus hlau tsawg thiab ultra-dawb glossy los yog suede nto. Peb kuj feem ntau xa mus rau iav du li ntab iav, suede iav los yog iav dov. Lub thickness ntawm lub iav vaj huam sib luag peb siv feem ntau yog 3.2 hli thiab 4 hli, thiab lub thickness ntawm lub tsev khoom-hom hnub ci photovoltaic modules yog 5-10 hli. Txawm li cas los xij, tsis hais qhov tuab ntawm lub iav vaj huam sib luag, nws lub teeb xa hluav taws xob yuav tsum siab dua 90 feem pua, qhov wavelength ntau ntawm cov lus teb spectral yog 320-1l00nm, thiab nws muaj kev cuam tshuam siab rau infrared teeb ntau dua 1200nm.

Txij li thaum nws cov ntsiab lus hlau yog qis dua li cov iav zoo tib yam, lub teeb xa hluav taws xob ntawm lub iav yog nce. Ordinary iav yog ntsuab thaum saib ntawm ntug. Txij li lub khob no muaj cov hlau tsawg dua li cov iav zoo tib yam, nws yog xim dawb dua li iav zoo tib yam thaum saib ntawm ntug ntawm iav, yog li lub iav no tau hais tias yog super dawb.

Suede hais txog qhov tseeb tias txhawm rau txo qhov kev xav ntawm lub hnub ci thiab ua kom lub teeb pom kev zoo, lub iav nto yog ua fuzzy los ntawm kev siv lub cev thiab tshuaj. Tau kawg, siv cov sol-gel nano-cov ntaub ntawv thiab cov txheej txheem txheej txheem (xws li magnetron sputtering txoj kev, ob txoj kev immersion, thiab lwm yam), ib txheej ntawm nyias zaj duab xis uas muaj cov khoom siv nano yog coated rau ntawm iav nto. Cov iav zoo li no tuaj yeem tsis tsuas yog ua kom lub thickness ntawm lub vaj huam sib luag xwb Lub teeb xa hluav taws xob ntawm lub iav yog ntau tshaj 2 feem pua, uas tuaj yeem txo qhov kev xav ntawm lub teeb, thiab tseem muaj kev tu tus kheej, uas tuaj yeem txo cov pa phem. dej nag, plua plav, thiab lwm yam ntawm cov roj teeb ntawm lub vaj huam sib luag, ua kom nws huv si, txo lub teeb lwj, thiab ua kom lub zog tsim hluav taws xob ntau dua 1.5 feem pua ​​~ 3 feem pua.

Txhawm rau ua kom lub zog ntawm iav, tiv thaiv qhov cuam tshuam ntawm cua, xuab zeb thiab lawg, thiab tiv thaiv lub hnub ci hnub ci rau lub sijhawm ntev, peb tau tempered lub vaj huam sib luag iav. Ua ntej, lub iav yog rhuab mus txog 700 degree nyob rau hauv ib tug kab rov tav tempering rauv, thiab ces txias sai sai thiab uniformly los ntawm cov huab cua txias, thiaj li hais tias uniform compressive kev nyuaj siab yog tsim rau saum npoo thiab tensile kev nyuaj siab yog tsim nyob rau hauv, uas zoo txhim kho khoov thiab cuam tshuam. tiv thaiv iav. Tom qab tempering lub iav vaj huam sib luag, lub zog ntawm lub iav tuaj yeem nce los ntawm 4 mus rau 5 npaug piv nrog cov iav zoo tib yam.