Cov khoom siv hluav taws xob muaj feem cuam tshuam nrog cov cuab yeej siv dab tsi, thiab yuav tsim nws li cas? Nyob rau hauv lub photovoltaic daim phiaj-kev sib txuas, lub zog ntawm cov khoom muaj feem xyuam nrog lub inverter, thiab lub zog sib piv ntawm cov khoom thiab cov inverters tsis yog qhov sib piv ntawm 1: 1. Nws yuav tsum tau ua ke nrog rau qhov project Comprehensive kev txiav txim siab ntawm cov xwm txheej, lub ntsiab influencing yam yog irradiance, system poob, inverter efficiency, inverter lub neej, inverter voltage ntau, tivthaiv installation lub kaum sab xis, thiab lwm yam.
1. Component installation qaij lub kaum sab xis thiab azimuth lub kaum sab xis
Thaum lub dav hlau ntawm cov khoom yog perpendicular mus rau lub teeb, lub zog uas tau txais yog qhov loj tshaj plaws. Yog tias cov khoom raug muab tso rau obliquely, lub dav hlau ntawm cov khoom thiab lub teeb tsim ib lub kaum ntse ntse, thiab lub zog tau txais yuav raug txo. Rau tib cheeb tsam, lub zog tau txais yuav tsawg dua. Lub kaum sab xis ntawm lub module thiab lub hnub yog perpendicular, thiab lub hwj chim yog siab tshaj plaws.
2. Lub irradiance ntawm lub installation cheeb tsam
Lub zog tso zis ntawm lub module yog txuam nrog irradiance. Nyob rau hauv cov cheeb tsam uas muaj cov khoom siv hnub ci zoo, vim tsis muaj huab cua nyob rau hnub ci, huab cua zoo, thiab siab atmospheric transparency, lub hnub ci hluav taws xob mus txog qhov chaw ntawm lub module yog ntau dua li qhov nruab nrab tus nqi ntawm cov cheeb tsam uas tsis zoo.
3. Kev teeb tsa qhov siab
Qhov siab dua qhov siab, cov huab cua nyias dua, thiab qhov me me ntawm cov cua tsis muaj zog ntawm lub hnub ci hluav taws xob, thiab lub hnub ci hluav taws xob muaj zog dua mus txog hauv av. Piv txwv li, Qinghai-Tibet Plateau yog thaj av uas muaj hnub ci hluav taws xob muaj zog tshaj plaws hauv Suav teb. Qhov twg cov huab cua yog thinner, lub tshav kub dissipation ntawm lub inverter yuav phem dua. Yog tias qhov siab tshaj qhov siab tshaj qhov siab, lub inverter yuav tsum derate.
4. DC sab system efficiency
Nyob rau hauv lub photovoltaic system, lub zog yog kis los ntawm lub hnub ci hluav taws xob mus rau photovoltaic modules, los ntawm DC cables, combiner thawv, thiab DC fais fab faib rau lub inverter, thiab tag nrho cov kev sib txuas tau poob. Cov qauv tsim sib txawv, xws li kev siv lub hauv paus, txoj hlua, thiab cov txheej txheem faib, muaj qhov sib txawv ntawm DC sab poob.
5. Inverter tshav kub dissipation tej yam kev mob
Feem ntau, lub inverter yuav tsum tau muab tso rau hauv qhov chaw zoo-ventilated thiab tsis txhob raug tshav ntuj ncaj qha, uas yog qhov tsim nyog rau cov cua sov dissipation. Yog hais tias lub inverter yuav tsum tau muab ntsia rau hauv ib qho chaw kaw uas tsis haum rau cov cua kub dissipation vim qhov chaw txwv, qhov derating ntawm lub inverter yuav tsum tau txiav txim siab, thiab cov khoom tsawg dua yuav tsum tau nruab.
6. Cov khoom tseem ceeb
Qhov zoo ntawm lub hwj chim kam rau ua: Txhawm rau kom ntseeg tau tias qhov attenuation ntawm photovoltaic modules tsis tshaj 20 feem pua hauv 25 xyoo, ntau lub tuam txhab module muaj qhov zoo siab ntev ntawm 0-5 feem pua rau cov modules uas nyuam qhuav xa tuaj. Piv txwv li, lub zog tiag tiag ntawm 265W module yuav yog 270W.
Tsis zoo kub coefficient: Lub zog kub ntawm lub module yog hais txog -0.41 feem pua / degree, lub hwj chim ntawm lub module yuav nce thaum kub ntawm lub module poob. Ib qho 250W module yuav muaj lub zog tso zis ntau tshaj 250W hauv thaj chaw uas muaj hnub ci zoo tshaj plaws hauv kuv lub tebchaws, xws li sab qaum teb Ningxia, sab qaum teb Gansu, thiab yav qab teb Xinjiang, yam tsis xav txog kev poob khoom.
Muab ob npaug rau-sided module: Ob-sided module tuaj yeem tsis tsuas yog tau txais lub zog hluav taws xob ntawm lub hnub ci ntawm sab xub ntiag, tab sis kuj tau txais lub zog hluav taws xob ntawm lub hnub ci ntawm sab nraub qaum. Cov khoom sib txawv muaj qhov sib txawv ntawm qhov sib txawv rau lub hnub ci hauv cov spectral sib txawv. Daus, ntub dej, nplej, suab puam, cov yam ntxwv hauv av sib txawv muaj qhov sib txawv ntawm tib lub band, thiab tib lub hauv av nta muaj qhov sib txawv ntawm qhov sib txawv.
7. Inverter yam
Inverter efficiency: Qhov ua tau zoo ntawm lub inverter tsis yog tus nqi tas li. Muaj hluav taws xob hloov khoom siv poob thiab sib nqus poob. Thaum lub zog qis, qhov ua tau zoo yog qhov tsawg. Thaum lub zog yog 40 feem pua rau 60 feem pua, qhov ua tau zoo yog qhov siab tshaj plaws. Thaum nws tshaj 60 feem pua, Efficiency maj mam txo. Yog li ntawd, tag nrho lub zog ntawm photovoltaic zog yuav tsum tau tswj ntawm 40 feem pua thiab 60 feem pua ntawm lub zog inverter kom tau txais kev ua haujlwm zoo tshaj plaws.
Inverter lub neej: Photovoltaic inverters yog cov khoom siv hluav taws xob, thiab lawv txoj kev ntseeg tau muaj ntau yam ua rau kev ua haujlwm kub ntawm inverter. Ntawm lawv, yog tias qhov kub ntawm cov khoom xws li capacitors, kiv cua, thiab relays nce 10 degree, qhov tsis ua hauj lwm tus nqi yuav nce ntau dua 50 feem pua. . Kev khiav hauj lwm kub kuj muaj feem xyuam rau lub hwj chim. Raws li kev txheeb cais, kev ua haujlwm ntev ntawm lub inverter ntawm 80-100 feem pua lub zog yog li 20 feem pua qis dua li ntawm 40-60 feem pua ntawm lub zog.
Qhov zoo tshaj plaws ua hauj lwm voltage ntau ntawm lub inverter: qhov ua hauj lwm voltage yog nyob ib ncig ntawm lub rated ua hauj lwm voltage ntawm lub inverter, qhov efficiency yog siab tshaj, ib-theem 220V inverter, rated input voltage ntawm lub inverter yog 360V, peb theem 380V. inverter, lub inverter Qhov ntsuas input voltage ntawm lub converter yog 650V.