Yuav ntev npaum li cas lub tsev nyob hauv tsev solar panels? Cov laj thawj no rau kev txiav txim siab

ଲେଖକ: ଆଇଫ୍ଲୋପାୱାର - អ្នកផ្គត់ផ្គង់ស្ថានីយ៍ថាមពលចល័ត

Muaj ntau yam cuam tshuam rau lub neej tsim khoom ntawm lub tsev solar vaj huam sib luag. Hauv thawj ntu ntawm cov koob no, peb yuav qhia txog lub hnub ci vaj huam sib luag nws tus kheej. Cov vaj huam sib luag hnub ci vaj huam sib luag feem ntau yog muag hauv cov nyiaj qiv mus ntev lossis kev xauj tsev, tab sis lawv cov vaj huam sib luag siv tau ntev npaum li cas? Lub neej vaj huam sib luag nyob ntawm ntau yam, suav nrog kev nyab xeeb, hom qauv, thiab lub tshuab txee siv, thiab lwm yam kev xav.

Txawm hais tias lub vaj huam sib luag nws tus kheej tsis muaj qhov tshwj xeeb "hnub kawg", qhov poob ntau lawm feem ntau yuam cov cuab yeej siv rau lub sijhawm. Thaum txiav txim siab seb puas yuav ua kom koj lub vaj huam sib luag khiav 20 mus rau 30 xyoo yav tom ntej, qhov kev soj ntsuam cov zis yog qhov zoo tshaj plaws los txiav txim siab zoo. Degenerative teeb meem Raws li cov ntaub ntawv los ntawm National Renewable Energy Laboratory (NREL), dhau sij hawm, qhov poob ntawm cov zis yog hu ua degradation, feem ntau yog txo qis ntawm 0.

5% ib xyoos twg. Cov neeg tsim khoom feem ntau ntseeg tias 25 txog 30 xyoo yog lub sijhawm taw qhia uas tshwm sim txaus degradation. Lub sijhawm no, nws yuav raug txiav txim siab los hloov lub vaj huam sib luag.

NREL tau hais tias kev tsim khoom thiab kev lees paub kev lag luam qauv yog 25 xyoo ntawm hnub ci modules. Xav txog 0.5% ntawm qhov kev siv txhua xyoo retardation tus nqi, 20-xyoo vaj huam sib luag tuaj yeem tsim 90% ntawm nws cov peev txheej qub.

Vaj huam sib luag zoo yuav muaj qee qhov cuam tshuam rau tus nqi degradation. NREL daim ntawv tshaj tawm, tus nqi txhua xyoo ntawm cov tuam txhab high-end xws li Panasonic thiab LG yog kwv yees li 0.3%, thaum qee lub npe muaj tus nqi txo tus nqi mus txog 0.

80%. 25 xyoo tom qab, cov vaj huam sib luag zoo no tseem tuaj yeem tsim tau 93% ntawm lawv cov khoom qub, thaum cov nqi degradation ntau dua tuaj yeem tsim tau 82.5%.

Qee cov tuam txhab siv cov khoom siv los tiv thaiv PID tsim cov vaj huam sib luag hauv lawv cov iav, ntim khoom, thiab cov teeb meem sib txawv. Ib feem ntawm qhov degradation yog vim muaj qhov tshwm sim hu ua qhov muaj peev xwm induction degradation (PID), qhov no yog qee qhov teeb meem ntsib los ntawm lub vaj huam sib luag. Thaum lub zog muaj peev xwm ntawm lub vaj huam sib luag thiab cov ion tsiv teb tsaws ntawm cov khoom siv semiconductor thiab lwm yam khoom ntawm lub module (xws li iav, puag lossis ncej), cov khoom siv semiconductor yog nyob rau hauv ion tsiv teb tsaws ntawm cov khoom siv semiconductor thiab cov module.

Qhov no yuav ua rau lub zog tso zis muaj peev xwm ntawm lub module poob qis, qee zaum, yuav poob qis heev. Tag nrho cov vaj huam sib luag tseem raug rau photorealized degradation (LID), qhov twg lub vaj huam sib luag yuav plam efficiency nyob rau hauv thawj ob peb teev ntawm raug lub hnub. PVEVOLUTIONLABS kuaj kuaj PVEL yog sawv cev raws li qhov loj ntawm cov siv lead ua silicon wafer txawv nyob ntawm lub vaj huam sib luag, tab sis feem ntau ua rau ib zaug, 1% mus rau 3% efficiency poob.

Cov huab cua tej yam kev mob raug rau huab cua nyob rau hauv huab cua tej yam kev mob, lub ntsiab tsav yam tseem ceeb ntawm vaj huam sib luag degradation. Thaum tshav kub kub yog qhov tseem ceeb hauv kev ua haujlwm ntawm vaj huam sib luag ntawm lub sijhawm thiab kev degradation dhau sijhawm. Raws li NREL, ib puag ncig cua sov yuav muaj kev cuam tshuam tsis zoo rau kev ua haujlwm thiab kev ua haujlwm ntawm cov khoom siv hluav taws xob.

SolarCalculator.com, qhia tias qhov kub coefficient ntawm lub vaj huam sib luag tuaj yeem pom los ntawm kev txheeb xyuas cov chaw tsim khoom cov ntaub ntawv, uas yuav ua pov thawj lub peev xwm ntawm lub vaj huam sib luag ntawm qhov kub siab dua. Lub tshav kub pauv kuj txhawb kev degradation los ntawm cov txheej txheem hu ua thermal cycle.

Thaum qhov kub thiab txias, cov khoom nthuav dav, qhov kub thiab txias yog qis, cov khoom shrinkage. Sij hawm dhau mus, qhov kev ua si no yuav maj mam ua rau tsim cov microcracks hauv vaj huam sib luag, yog li txo cov zis. Qhov coefficient no piav qhia txog qhov ua tau zoo npaum li cas poob rau ib liter hauv qhov ntsuas kub ntawm 25 degrees Celsius.

Piv txwv li, qhov kub coefficient ntawm -0.353% txhais tau tias tag nrho cov peev xwm yuav poob 0.353% txhua qhov siab tshaj 25 degrees Celsius.

Hauv nws daim ntawv teev cov qhab nia txhua xyoo, PVEL txheeb xyuas 36 qhov kev ua haujlwm hnub ci hauv Is Nrias teb thiab pom muaj kev cuam tshuam loj ntawm thermal degradation. Qhov nruab nrab txhua xyoo degradation tus nqi ntawm cov haujlwm no yog 1.47%, tab sis tus nqi degeneration ntawm arrayed nyob rau hauv lub roob txias yog ze rau ib nrab, 0.

7%. Cua yog lwm yam huab cua uas yuav ua rau muaj kev puas tsuaj rau lub hnub ci vaj huam sib luag. Cov cua muaj zog tuaj yeem ua rau lub vaj huam sib luag khoov, hu ua dynamic mechanical load.

Qhov no tseem yuav ua rau microcracks hauv vaj huam sib luag kom txo cov zis. Qee qhov kev daws teeb meem txee tau ua kom zoo rau thaj tsam cua daj cua dub, tiv thaiv cov vaj huam sib luag los ntawm kev txhawb nqa muaj zog thiab txwv micro-cracking. Feem ntau, cov chaw tsim khoom cov ntaub ntawv yuav muab cov ntaub ntawv hais txog cov cua loj tshaj plaws uas tuaj yeem tiv taus lub vaj huam sib luag.

Txhim kho kom raug los pab daws cov teeb meem kub ntxhov. Lub vaj huam sib luag yuav tsum tau nruab rau hauv ob peb nti saum lub ru tsev kom cov paj tuaj yeem ntws thiab txias cov khoom siv hauv qab no. Cov ntaub ntawv xim lub teeb tuaj yeem siv rau cov qauv vaj huam sib luag los txwv kev nqus cua sov.

Thiab qhov kev ua tau zoo ntawm thermally-rhiab inverters thiab cov rooj sib txoos yuav tsum nyob rau hauv qhov chaw ntxoov ntxoo, CED ntsuab technology. Daus kuj zoo ib yam, thaum muaj cua daj cua dub loj, nws tuaj yeem npog lub vaj huam sib luag, txwv cov zis. Daus kuj tseem yuav ua rau cov khoom siv hluav taws xob muaj zog los txo qhov kev ua haujlwm ntawm lub vaj huam sib luag.

Feem ntau, cov daus yuav swb los ntawm lub vaj huam sib luag vim tias lawv du thiab sov heev, tab sis qee zaum, tus tswv tsev yuav txiav txim siab tshem cov daus ntawm lub vaj huam sib luag. Qhov no yuav tsum tau ua tib zoo ua tib zoo vim hais tias cov iav saum npoo ntawm lub vaj huam sib luag scraping yuav muaj kev cuam tshuam tsis zoo rau cov zis. Degradation yog ib txwm, inevitable ib feem ntawm lub vaj huam sib luag lub neej.

Kev txhim kho kom raug, ua tib zoo daus thiab ua tib zoo saib xyuas vaj huam sib luag pab tsim tawm, tab sis thaum kawg, lub hnub ci vaj huam sib luag yog ib qho cuab yeej uas tsis muaj qhov txav mus los, yuav luag tsis muaj kev saib xyuas. Tsim cov qauv los xyuas kom meej tias lub vaj huam sib luag muab rau yuav muaj lub neej ua haujlwm ntev dua thiab ua haujlwm raws li kev npaj, nws yuav tsum tau lees paub los ntawm kev ntsuas tus qauv. Lub vaj huam sib luag yog raug rau ITS (IEC) kev xeem, uas yog tsim rau ib leeg siv lead ua thiab polycrystalline panels.

EnergySage tau qhia tias lub vaj huam sib luag uas ua tau raws li IEC61215 tus qauv tau raug kuaj hluav taws xob, xws li ntub dej tam sim no thiab rwb thaiv tsev. Lawv tau txais kev kuaj xyuas cov cua thiab daus, thiab kev ntsuas huab cua los kuaj xyuas hotspots, ultraviolet raug, ya raws, kub kub, lawg poob siab thiab lwm yam tsis muaj zog sab nraum zoov. Lub vaj huam sib luag specification kuj tseem muaj nyob rau hauv US Insurance Laboratory (UL) foob, uas kuj muab cov qauv thiab kev xeem.

UL khiav qhov kev ntsuas siab thiab kev laus, thiab tag nrho cov kev ntsuas kev nyab xeeb. IEC61215 kuj txiav txim siab qhov ntsuas qhov ua tau zoo ntawm cov qauv ntsuas ntsuas, suav nrog qhov ntsuas kub coefficient, qhib qhov hluav taws xob hluav taws xob, thiab qhov tso zis ntau tshaj plaws. Qhov tsis ua hauj lwm ntawm cov hnub ci vaj huam sib luag yog tsawg heev.

NREL tau ua kev tshawb fawb txog ntau dua 50,000 lub tshuab thiab thoob ntiaj teb tau teeb tsa 4,500 lub tshuab nruab rau hauv Tebchaws Meskas hauv xyoo 2000 txog 2015. Txoj kev tshawb no pom tias 5 vaj huam sib luag tsis ua haujlwm hauv 10,000 panels hauv ib xyoos. Sij hawm dhau mus, lub vaj huam sib luag yuam kev tau txhim kho zoo vim tias qhov tsis ua haujlwm ntawm lub kaw lus nruab nrab ntawm 1980 thiab 2000 yog ob zaug ntawm pab pawg tom qab 2000.

Lub kaw lus kaw tsis tshua muaj vim yog vaj huam sib luag tsis ua haujlwm. Qhov tseeb, kev tshawb fawb ntawm Kwhanalytics pom tias 80% ntawm lub hnub ci fais fab nroj tsuag poob qis yog vim qhov tsis ua haujlwm ntawm lub inverter, lub inverter hloov DC tam sim no ntawm lub roj teeb lub rooj tsavxwm mus rau lub hwj chim AC. Photovoltaic yuav tshuaj xyuas inverter kev ua tau zoo nyob rau hauv lub series ntawm lwm theem.

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