Hnub ci cell module

Feem ntau, lub hnub ci cell module yog tsim los ntawm tsib txheej los ntawm sab saum toj mus rau hauv qab, nrog rau cov iav photovoltaic, ntim cov nplaum zaj duab xis, cell nti, ntim cov nplaum zaj duab xis, thiab rov qab:

(1) Photovoltaic iav

Vim lub zog tsis zoo ntawm lub hnub ci photovoltaic cell, nws yooj yim tawg;Cov pa ya raws thiab corrosive hauv huab cua yuav maj mam oxidize thiab xeb cov electrode, thiab tsis tuaj yeem tiv taus qhov hnyav ntawm kev ua haujlwm sab nraum zoov;Nyob rau tib lub sijhawm, kev ua haujlwm voltage ntawm ib lub cell photovoltaic feem ntau yog me me, uas yog qhov nyuaj rau kev ua kom tau raws li qhov xav tau ntawm cov khoom siv hluav taws xob.Yog li ntawd, lub hnub ci hlwb feem ntau yog kaw ntawm lub ntim ntim thiab lub nraub qaum los ntawm EVA zaj duab xis los ua ib qho kev tsis pom kev photovoltaic module nrog ntim thiab kev sib txuas sab hauv uas tuaj yeem muab DC tso tawm ntawm nws tus kheej.Ob peb photovoltaic modules, inverters thiab lwm yam khoom siv hluav taws xob tsim lub tshuab hluav taws xob photovoltaic.

Tom qab lub iav photovoltaic npog lub photovoltaic module yog coated, nws tuaj yeem ua kom muaj lub teeb xa hluav taws xob ntau dua, kom lub hnub ci cell tuaj yeem tsim hluav taws xob ntau dua;Nyob rau tib lub sijhawm, cov iav photovoltaic toughened muaj zog dua, uas tuaj yeem ua rau lub hnub ci zog tiv taus cua siab dua thiab ntau dua diurnal kub sib txawv.Yog li ntawd, photovoltaic iav yog ib qho ntawm cov khoom siv tseem ceeb ntawm photovoltaic modules.

Cov cell photovoltaic feem ntau muab faib ua crystalline silicon cell thiab nyias zaj duab xis hlwb.Cov iav photovoltaic siv rau crystalline silicon hlwb feem ntau siv cov txheej txheem calendering, thiab cov iav photovoltaic siv rau nyias zaj duab xis hlwb feem ntau siv cov txheej txheem ntab.

(2) Sealing Adhesive Film (EVA)

Lub hnub ci ntim cov nplaum nplaum zaj duab xis yog nyob rau hauv nruab nrab ntawm lub hnub ci cell module, uas qhwv cov ntawv xov tooj ntawm tes thiab txuas nrog lub iav thiab sab nraub qaum.Lub luag haujlwm tseem ceeb ntawm lub hnub ci ntim cov nplaum nplaum zaj duab xis muaj xws li: muab cov qauv kev txhawb nqa rau cov khoom siv hluav taws xob hnub ci, muab qhov siab tshaj plaws kev sib txuas ntawm lub xov tooj ntawm tes thiab hnub ci hluav taws xob, lub cev sib cais ntawm cov xov tooj ntawm tes thiab cov kab, thiab ua cov cua sov tsim los ntawm lub xov tooj ntawm tes, thiab lwm yam. Yog li ntawd, cov khoom ntim zaj duab xis yuav tsum muaj dej vapor barrier, siab pom lub teeb transmittance, siab ntim resistivity, huab cua tsis kam thiab anti PID kev ua tau zoo.

Tam sim no, EVA nplaum zaj duab xis yog cov khoom siv nplaum nplaum uas siv ntau tshaj plaws rau kev ntim khoom hnub ci.Raws li xyoo 2018, nws txoj kev lag luam feem ntau yog kwv yees li 90%.Nws muaj ntau tshaj 20 xyoo ntawm daim ntawv thov keeb kwm, nrog cov khoom sib npaug thiab kev ua haujlwm siab.POE nplaum zaj duab xis yog lwm qhov siv dav siv photovoltaic ntim cov ntaub nplaum zaj duab xis.Raws li xyoo 2018, nws txoj kev lag luam feem ntau yog li 9% 5. Cov khoom no yog ib qho ethylene octene copolymer, uas tuaj yeem siv rau kev ntim ntawm lub hnub ci ib khob thiab ob chav iav modules, tshwj xeeb tshaj yog nyob rau hauv ob chav iav modules.POE nplaum zaj duab xis muaj cov yam ntxwv zoo xws li dej vapor barrier npaum li cas, pom lub teeb pom kev zoo, siab ntim tiv taus, huab cua tsis zoo thiab kev ua haujlwm ntev PID.Tsis tas li ntawd, qhov tshwj xeeb zoo ntawm qhov kev ua tau zoo ntawm cov khoom no tuaj yeem txhim kho kev siv lub hnub ci zoo rau lub module, pab txhawb lub zog ntawm lub module, thiab tuaj yeem daws qhov teeb meem ntawm cov nplaum nplaum nplaum dawb tom qab module lamination.

(3) Roj teeb nti

Silicon solar cell yog ib yam khoom siv ob lub davhlau ya nyob twg.Ob lub terminals nyob rau ntawm lub teeb tau txais qhov chaw thiab lub backlight nto ntawm silicon nti.

Lub hauv paus ntsiab lus ntawm kev tsim hluav taws xob photovoltaic: Thaum lub photon ci ntsa iab ntawm cov hlau, nws lub zog tuaj yeem nqus tau los ntawm cov hluav taws xob hauv cov hlau.Lub zog absorbed los ntawm electron yog loj txaus los kov yeej lub Coulomb quab yuam nyob rau hauv lub hlau atom thiab ua hauj lwm, khiav tawm ntawm hlau nto thiab ua ib tug photoelectron.Silicon atom muaj plaub txheej electrons.Yog tias ntshiab silicon doped nrog atoms nrog tsib txheej electrons, xws li phosphorus atoms, nws dhau los ua N-hom semiconductor;Yog tias ntshiab silicon doped nrog atoms nrog peb sab electrons, xws li boron atoms, P-hom semiconductor yog tsim.Thaum P hom thiab N hom sib xyaw ua ke, qhov chaw tiv tauj yuav tsim qhov sib txawv thiab dhau los ua lub hnub ci cell.Thaum tshav ntuj ci rau ntawm PN kev sib tshuam, tam sim no ntws los ntawm P-hom sab mus rau sab N-hom, tsim ib qho tam sim no.

Raws li cov ntaub ntawv sib txawv siv, lub hnub ci hnub ci tuaj yeem muab faib ua peb pawg: thawj qeb yog crystalline silicon solar cells, suav nrog monocrystalline silicon thiab polycrystalline silicon.Lawv cov kev tshawb fawb thiab kev loj hlob thiab kev lag luam daim ntawv thov yog qhov sib sib zog nqus, thiab lawv cov kev hloov pauv photoelectric yog siab, tuav lub lag luam tseem ceeb ntawm cov roj teeb tam sim no;Cov qeb thib ob yog nyias zaj duab xis hnub ci, suav nrog silicon raws li cov yeeb yaj kiab, cov khoom sib txuas thiab cov khoom siv organic.Txawm li cas los xij, vim qhov tsis txaus lossis toxicity ntawm cov khoom siv raw, kev hloov pauv tsis zoo, kev ruaj ntseg tsis zoo thiab lwm yam tsis zoo, lawv tsis tshua siv hauv khw;Cov qeb thib peb yog cov hnub ci tshiab, suav nrog laminated solar cells, uas tam sim no nyob rau hauv kev tshawb fawb thiab kev loj hlob theem thiab cov thev naus laus zis tseem tsis tau paub tab.

Cov ntaub ntawv tseem ceeb ntawm lub hnub ci hlwb yog polysilicon (uas tuaj yeem tsim ib qho siv lead ua silicon rods, polysilicon ingots, thiab lwm yam).Cov txheej txheem ntau lawm muaj xws li: tu thiab flocking, diffusion, ntug etching, dephosphorized silicon iav, PECVD, tshuaj ntsuam luam ntawv, sintering, kuaj, thiab lwm yam.

Qhov sib txawv thiab kev sib raug zoo ntawm ib leeg siv lead ua thiab polycrystalline photovoltaic vaj huam sib luag tau txuas ntxiv ntawm no

Ib leeg siv lead ua thiab polycrystalline yog ob txoj hauv kev ntawm crystalline silicon hnub ci zog.Yog tias ib qho siv lead ua piv rau ib lub pob zeb tiav, cov polycrystalline yog ib lub pob zeb ua los ntawm cov pob zeb crushed.Vim muaj cov khoom sib txawv ntawm lub cev, qhov kev hloov pauv ntawm photoelectric ntawm ib qho siv lead ua yog siab dua li ntawm polycrystal, tab sis tus nqi ntawm polycrystal kuj tsawg.

Lub photoelectric conversion efficiency ntawm monocrystalline silicon hnub ci hlwb yog hais txog 18%, thiab qhov siab tshaj plaws yog 24%.Qhov no yog lub siab tshaj plaws photoelectric conversion efficiency ntawm txhua yam ntawm lub hnub ci hlwb, tab sis tus nqi ntau lawm yog siab.Vim hais tias monocrystalline silicon feem ntau ntim nrog tempered iav thiab waterproof resin, nws yog ruaj thiab muaj kev pab lub neej ntawm 25 xyoo.

Cov txheej txheem ntau lawm ntawm polycrystalline silicon hnub ci hlwb zoo ib yam li cov monocrystalline silicon hnub ci hlwb, tab sis lub photoelectric conversion efficiency ntawm polycrystalline silicon hnub ci hlwb yuav tsum tau txo ntau, thiab nws photoelectric conversion efficiency yog li ntawm 16%.Hais txog tus nqi tsim khoom, nws yog pheej yig dua li monocrystalline silicon solar cells.Cov khoom siv tau yooj yim los tsim, txuag hluav taws xob, thiab tag nrho cov nqi tsim khoom tsawg.

Kev sib raug zoo ntawm ib leeg siv lead ua thiab polycrystal: polycrystal yog ib qho siv lead ua uas muaj qhov tsis xws luag.

Nrog rau qhov nce ntawm kev sib tw hauv online yam tsis muaj nyiaj pab thiab qhov tsis txaus ntawm cov khoom siv hauv av, qhov kev thov rau cov khoom siv tau zoo hauv kev ua lag luam thoob ntiaj teb yog nce.Cov neeg ua lag luam cov kev xav tau kuj tau hloov pauv los ntawm qhov kev maj nrawm dhau los mus rau qhov qub, uas yog, lub zog tsim hluav taws xob ua haujlwm thiab kev ntseeg tau ntev ntawm qhov project nws tus kheej, uas yog tus yuam sij rau cov nyiaj tau los ntawm cov chaw siv hluav taws xob yav tom ntej.Nyob rau theem no, polycrystalline thev naus laus zis tseem muaj qhov zoo ntawm tus nqi, tab sis nws qhov kev ua tau zoo kuj tsawg.

Muaj ntau qhov laj thawj rau kev loj hlob qeeb ntawm polycrystalline thev naus laus zis: ntawm ib sab, kev tshawb fawb thiab kev tsim kho tus nqi tseem siab, uas ua rau cov nqi tsim khoom siab ntawm cov txheej txheem tshiab.Ntawm qhov tod tes, tus nqi ntawm cov khoom siv yog kim heev.Txawm li cas los xij, txawm hais tias lub zog tsim hluav taws xob thiab kev ua tau zoo ntawm cov khoom siv lead ua tau zoo tshaj qhov ncav cuag ntawm polycrystals thiab zoo tib yam ib leeg siv lead ua, qee tus nqi rhiab cov neeg siv khoom tseem yuav "tsis tuaj yeem sib tw" thaum xaiv.

Tam sim no, siv tau zoo ib leeg siv lead ua thev naus laus zis tau ua tiav qhov sib npaug ntawm kev ua tau zoo thiab tus nqi.Qhov muag ntim ntawm ib leeg siv lead ua tau tuav txoj haujlwm tseem ceeb hauv kev ua lag luam.

(4) Backplane

Lub hnub ci backplane yog cov khoom ntim photovoltaic nyob rau sab nraum qab ntawm lub hnub ci cell module.Nws yog tsuas yog siv los tiv thaiv lub hnub ci cell module nyob rau sab nraum zoov ib puag ncig, tiv thaiv corrosion ntawm ib puag ncig yam xws li lub teeb, av noo thiab tshav kub ntawm lub ntim zaj duab xis, cell chips thiab lwm yam ntaub ntawv, thiab ua si ib tug huab cua resistant rwb thaiv tsev lub luag hauj lwm.Txij li thaum lub nraub qaum yog nyob rau ntawm txheej txheej sab nraud ntawm sab nraub qaum ntawm PV module thiab ncaj qha kev sib cuag nrog cov chaw sab nraud, nws yuav tsum muaj qhov kub thiab txias tsis kam, ultraviolet hluav taws xob tiv thaiv, ib puag ncig kev laus tiv thaiv, dej vapor barrier, hluav taws xob rwb thaiv tsev thiab lwm yam. cov khoom kom tau raws li 25 xyoo kev pab cuam lub neej ntawm lub hnub ci cell module.Nrog rau kev txhim kho txuas ntxiv ntawm kev tsim hluav taws xob tsim hluav taws xob uas yuav tsum tau ua ntawm kev lag luam photovoltaic, qee qhov kev ua haujlwm siab hnub ci backplane cov khoom kuj muaj lub teeb pom kev zoo los txhim kho cov kev hloov pauv photoelectric ntawm hnub ci modules.

Raws li kev faib tawm ntawm cov ntaub ntawv, lub backplane feem ntau yog muab faib ua cov organic polymers thiab cov khoom siv tsis zoo.Lub hnub ci backplane feem ntau yog hais txog cov organic polymers, thiab cov tshuaj inorganic feem ntau yog iav.Raws li cov txheej txheem ntau lawm, muaj ntau hom sib xyaw, hom txheej thiab coextrusion hom.Tam sim no, qhov sib xyaw backplane suav rau ntau dua 78% ntawm kev ua lag luam backplane.Vim muaj kev nce ntxiv ntawm cov iav ob chav iav, qhov kev lag luam feem ntawm iav backplane ntau dua 12%, thiab cov txheej txheem rov qab thiab lwm cov txheej txheem backplane yog li 10%.

Cov ntaub ntawv raw ntawm hnub ci backplane feem ntau suav nrog PET puag zaj duab xis, cov khoom siv fluorine thiab cov nplaum.PET puag zaj duab xis tsuas yog muab cov rwb thaiv tsev thiab cov khoom siv kho tshuab, tab sis nws cov huab cua kuj tsis zoo;Cov ntaub ntawv fluorine feem ntau muab faib ua ob hom: fluorine zaj duab xis thiab fluorine uas muaj cov resin, uas muab cov rwb thaiv tsev, huab cua tiv thaiv thiab cov khoom thaiv;Cov nplaum feem ntau yog tsim los ntawm cov khoom siv hluavtaws, tus neeg sawv cev kho, cov khoom siv ntxiv thiab lwm yam tshuaj.Nws yog siv los khi PET puag zaj duab xis thiab fluorine zaj duab xis hauv cov txheej txheem rov qab.Tam sim no, lub nraub qaum ntawm cov khoom siv hnub ci zoo tshaj plaws siv cov khoom siv fluoride los tiv thaiv PET puag zaj duab xis.Qhov txawv tsuas yog tias daim ntawv thiab muaj pes tsawg leeg ntawm cov khoom siv fluoride siv sib txawv.Cov khoom siv fluorine yog sib xyaw ua ke ntawm PET puag zaj duab xis los ntawm cov nplaum rau hauv daim ntawv fluorine zaj duab xis, uas yog cov khoom sib xyaw rov qab;Nws yog ncaj qha coated rau PET puag zaj duab xis nyob rau hauv daim ntawv ntawm fluorine muaj resin los ntawm cov txheej txheem tshwj xeeb, uas yog hu ua coated backplane.

Feem ntau hais lus, qhov sib xyaw backplane muaj qhov ua tau zoo tshaj plaws vim yog kev ncaj ncees ntawm nws cov fluorine zaj duab xis;Lub coated backplane muaj tus nqi kom zoo dua vim nws cov khoom siv qis.

Main hom ntawm composite backplane

Lub hnub ci vaj huam sib luag tuaj yeem muab faib ua ob sab fluorine zaj duab xis backplane, ib sab fluorine zaj duab xis backplane, thiab fluorine dawb backplane raws li cov ntsiab lus fluorine.Vim lawv cov huab cua tsis kam thiab lwm yam ntxwv, lawv tsim nyog rau qhov chaw sib txawv.Feem ntau hais lus, huab cua tiv thaiv ib puag ncig yog ua raws li ob sab fluorine zaj duab xis backplane, ib sab fluorine zaj duab xis backplane, thiab fluorine dawb backplane, thiab lawv cov nqi feem ntau txo qis.

Lus Cim: (1) PVF (monofluorinated resin) zaj duab xis yog extruded los ntawm PVF copolymer.Cov txheej txheem tsim no ua kom ntseeg tau tias PVF txheej txheej yog compact thiab tsis muaj qhov tsis xws luag xws li pinholes thiab cov kab nrib pleb uas feem ntau tshwm sim thaum PVDF (difluorinated resin) txheej txau lossis cov menyuam txheej.Yog li ntawd, lub rwb thaiv tsev ntawm PVF zaj duab xis zoo nkauj txheej yog superior rau PVDF txheej.PVF zaj duab xis npog cov ntaub ntawv tuaj yeem siv rau hauv qhov chaw uas muaj qhov tsis zoo corrosion;

(2) Nyob rau hauv tus txheej txheem ntawm PVF zaj duab xis tsim, extruding txheej txheem ntawm molecular lattice raws longitudinal thiab transverse cov lus qhia zoo heev ntxiv dag zog rau nws lub cev lub zog, yog li PVF zaj duab xis muaj ntau dua toughness;

(3) PVF zaj duab xis muaj zog hnav tsis kam thiab ua haujlwm ntev dua;

(4) Qhov saum npoo ntawm extruded PVF zaj duab xis yog du thiab muag heev, tsis muaj kab txaij, txiv kab ntxwv tev, micro wrinkle thiab lwm yam tsis xws luag ua rau ntawm qhov chaw thaum lub sij hawm cov menyuam txheej los yog txau.

Muaj cov xwm txheej

Vim tias nws cov huab cua tsis zoo, ob tog fluorine zaj duab xis sib xyaw backplane tuaj yeem tiv taus qhov chaw hnyav xws li txias, kub, cua thiab xuab zeb, nag, thiab lwm yam, thiab feem ntau yog siv dav hauv toj siab, suab puam, Gobi thiab lwm thaj chaw;Ib sab fluorine zaj duab xis composite backplane yog tus nqi txo cov khoom ntawm ob sab fluorine zaj duab xis composite backplane.Piv nrog rau ob-sided fluorine zaj duab xis composite backplane, nws cov txheej sab hauv muaj cov tsis zoo ultraviolet tsis kam thiab tshav kub dissipation, uas yog feem ntau siv rau lub ru tsev thiab thaj chaw uas muaj hluav taws xob ultraviolet.

6, PV inverter

Nyob rau hauv cov txheej txheem ntawm lub hnub ci photovoltaic zog tsim, lub zog tsim los ntawm photovoltaic arrays yog DC lub zog, tab sis ntau loads xav tau AC zog.DC fais fab mov system muaj cov kev txwv loj, uas tsis yooj yim rau kev hloov pauv hluav taws xob, thiab daim ntawv thov thauj khoom kuj tseem txwv.Tsuas yog cov khoom siv hluav taws xob tshwj xeeb, cov inverter yuav tsum tau hloov DC lub zog rau AC lub zog.Lub photovoltaic inverter yog lub plawv ntawm lub hnub ci photovoltaic lub zog tsim hluav taws xob.Nws hloov lub zog DC uas tsim los ntawm lub tshuab hluav taws xob photovoltaic rau hauv AC lub zog xav tau los ntawm lub neej los ntawm lub zog hluav taws xob hloov tshuab hluav taws xob, thiab yog ib qho tseem ceeb tshaj plaws ntawm cov khoom siv hluav taws xob photovoltaic.