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Kev lag luam xov xwm

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Yuav ua li cas nyeem cov hnub ci vaj huam sib luag technical specifications?

Sijhawm: 2021-11-26 Ntaus: 56

Muaj ntau lub ntsiab lus uas cuam tshuam nrog lub hnub ci vaj huam sib luag cov ntaub ntawv. Nws tuaj yeem tsis meej pem yog tias koj tsis nkag siab qhov no txhais li cas thaum koj nyeem ib daim ntawv qhia tshwj xeeb. Peb yuav piav qhia lawv txhua tus los pab qhia meej cov ntsiab lus thiab kev ntaus nqi.

Standard Test Conditions (STC)

STC yog cov txheej txheem uas lub hnub ci vaj huam sib luag raug kuaj ntawm. Qhov voltage thiab tam sim no sib txawv nrog cov kev hloov ntawm qhov kub thiab qhov hnyav ntawm lub teeb, yog li tag nrho cov hnub ci vaj huam sib luag yuav tsum raug kuaj rau tib yam kev sim ntsuas. Qhov no suav nrog cov cell photovoltaic kub ntawm 25, lub teeb siv ntawm 1000 watts ib square meter, uas yog hais txog tib yam li lub hnub thaum tav su, thiab atmospheric ntom ntawm 1.5, los yog lub hnub lub kaum sab xis perpendicular mus rau lub hnub ci vaj huam sib luag ntawm 152 meter saum toj no hiav txwv theem.

Qhov kub ntawm lub cev ua haujlwm (NOCT)

NOCT siv qhov pom tseeb dua ntawm cov xwm txheej hauv ntiaj teb tiag tiag, thiab muab kev ntsuas hluav taws xob rau koj uas koj yuav pom tseeb los ntawm koj lub hnub ci. Hloov chaw ntawm 1000 watts ib square meter, nws siv 800 watts ib square meter, uas yog ze rau hnub ci feem ntau nrog qee cov huab uas tawg. Nws siv qhov kub thiab txias ntawm 20 (68), tsis yog lub hnub ci kub, thiab suav nrog 2.24MPH cua txias rau sab nraum qab ntawm lub hnub ci vaj huam sib luag hauv av (ntau dua hauv thaj chaw hnub ci loj dua li lub ru tsev mounted thaj chaw array). Cov kev ntsuas no yuav qis dua STC, tab sis muaj tseeb dua.

Rated Output Specifications thiab Solar Panels

1

Rated tso zis rau hnub ci vaj huam sib luag ntawm lub teeb sib txawv (W / m2). Lub "hauv caug" ntawm qhov nkhaus yog qhov uas lub zog tshaj plaws yog tsim, thiab qhov voltage & tam sim no optimized.


Qhib Circuit Court Voltage (Voc)

Qhib Circuit Court voltage yog qhov voltage uas lub hnub ci vaj huam sib luag outputs uas tsis muaj load rau nws. Yog tias koj tsuas yog ntsuas nrog voltmeter hla qhov zoo thiab qhov tsis zoo, koj yuav tau txais Voc nyeem ntawv. Txij li thaum lub hnub ci vaj huam sib luag tsis txuas nrog ib yam dab tsi, tsis muaj kev thauj khoom ntawm nws, thiab nws tsis muaj tam sim no.

Qhov no yog tus lej tseem ceeb heev, vim nws yog qhov siab tshaj plaws uas lub hnub ci vaj huam sib luag tuaj yeem tsim tau raws li cov qauv ntsuas, yog li qhov no yog tus lej siv thaum txiav txim siab pes tsawg hnub ci vaj huam sib luag koj tuaj yeem xaim hauv series mus rau hauv koj lub inverter lossis tus nqi tswj.

Voc yuav muaj peev xwm ua tau luv luv thaum sawv ntxov thaum lub hnub tuaj txog thiab cov vaj huam sib luag nyob ntawm lawv qhov txias tshaj plaws, tab sis cov khoom siv hluav taws xob txuas nrog tseem tsis tau sawv tawm ntawm kev pw tsaug zog.

Nco ntsoov, fuses thiab breakers tiv thaiv cov xov hlau tiv thaiv dhau tam sim no, tsis dhau-voltage. Yog li, yog tias koj muab qhov hluav taws xob ntau dhau rau hauv hluav taws xob feem ntau, koj yuav ua rau lawv puas tsuaj.

Luv Circuit Court Tam Sim No (Isc)

Qhov luv luv Circuit Court tam sim no yog tus nqi ntawm amps (tam sim no) cov hnub ci vaj huam sib luag tau tsim thaum tsis txuas nrog lub nra, tab sis thaum ntxiv thiab rho tawm ntawm cov xov hlau txuas ncaj qha rau ib leeg. Yog tias koj tsuas yog ntsuas nrog lub ntsuas amperage hla qhov zoo thiab qhov tsis zoo, koj yuav tau txais Isc nyeem. Qhov no yog qhov siab tshaj plaws tam sim no lub hnub ci vaj huam sib luag yuav tsim nyob rau hauv cov qauv kev sim ntsuas.

Thaum txiav txim siab ntau npaum li cas amps ib lub cuab yeej txuas tuaj yeem ua tau, zoo li lub hnub ci them nyiaj tswj lossis inverter, Isc yog siv, feem ntau muab faib ua 1.25 rau National Electrical Code (NEC) cov cai.

Maximum Power Point (Pmax)

Pmax yog qhov chaw qab zib ntawm lub hnub ci vaj huam sib luag tso zis hluav taws xob, nyob ntawm "hauv caug" ntawm cov nkhaus hauv daim duab saum toj no. Nws yog qhov chaw ua ke ntawm cov volts thiab amps ua rau lub siab tshaj plaws wattage (Volts x Amps = Watts).

Thaum koj siv qhov Maximum Power Point Tracking MPPT) tus nqi tswj lossis inverter, qhov no yog qhov taw qhia uas MPPT cov khoom siv hluav taws xob sim khaws cov volts thiab amps ntawm kom ua kom lub zog tso zis ntau tshaj. Lub wattage uas lub hnub ci vaj huam sib luag tau teev tseg raws li yog Pmax qhov twg Pmax = Vmpp x Impp (saib hauv qab).

Maximum Power Point Voltage (Vmpp)

Lub Vmpp yog qhov voltage thaum lub zog tso zis ntau tshaj. Nws yog qhov tseeb qhov hluav taws xob uas koj xav pom thaum nws txuas nrog MPPT cov khoom siv hnub ci (xws li MPPT lub hnub ci them nyiaj los yog daim phiaj-khi inverter) raws li cov qauv ntsuas.

Maximum Power Point Tam Sim No (Impp)

Lub Impp yog qhov tam sim no (amps) thaum lub zog tso zis ntau tshaj. Nws yog qhov tseeb amperage koj xav pom thaum nws txuas nrog MPPT cov khoom siv hnub ci nyob rau hauv cov qauv ntsuas.

2

Piv txwv ntawm SolarWorld SunModule hnub ci vaj huam sib luag Standard Test Conditions (STC) thiab Kev Ua Haujlwm Cell Kub Kub (NOCT) kev ntsuas.


Nominal Voltage

Nominal voltage yog ib qho uas confuses ntau tus neeg. Nws tsis yog qhov voltage tiag tiag uas koj yuav ntsuas tau. Nominal voltage yog qeb.

Piv txwv li, lub nominal 12V hnub ci vaj huam sib luag muaj Voc txog 22V thiab Vmp txog 17V. Nws yog siv los them lub roj teeb 12V (uas yog nyob ib puag ncig 14V).

Nominal voltages qhia rau tib neeg paub tias cov khoom siv dab tsi mus ua ke.

Lub 12V hnub ci vaj huam sib luag yog siv nrog 12V tus nqi tswj, 12V roj teeb lub txhab nyiaj, thiab 12V inverter. Koj tuaj yeem ua 24V hnub ci array los ntawm kev xa ob lub 12V hnub ci vaj huam sib luag ua ke hauv series.

3

12V hnub ci vaj huam sib luag them lub roj teeb 12V nrog ib txwm 12V PWM tus nqi tswj.


Nws pib ua kom yuam kev thaum koj txav deb ntawm lub roj teeb raws li lub hnub ci, thiab 12V increments tsis tsim nyog lawm. Daim phiaj khi hnub ci panels nrog 60 hlwb feem ntau hu ua 20V nominal panels. Lawv muaj qhov siab dhau ntawm qhov hluav taws xob los them lub txhab nyiaj 12V roj teeb nrog cov tswj hwm ib txwm muaj, tab sis tsawg dhau ntawm qhov hluav taws xob los them lub txhab nyiaj 24V. MPPT tus nqi tswj tuaj yeem hloov pauv qhov tso zis hluav taws xob kom tso cai rau lawv siv rau hauv lub roj teeb.


4


Lub 20V nominal hnub ci vaj huam sib luag mus los ntawm MPPT lub hnub ci tus nqi tswj kom nws tuaj yeem them tau 12V roj teeb zoo.

nominal

12V

20V

24V

Cov naj npawb ntawm cov hlwb

36

60

72

Qhib Circuit Court Voltage (Voc)

22V

38V

46V

Max zog Volts (Vmp)

18V

31V

36V

Saum toj no: Kwv yees voltages los txiav txim nominal voltage ntawm solar panels.