Raws li lub ntiaj teb hloov zuj zus mus rau kev daws teeb meem hluav taws xob tauj dua tshiab, lub hnub ci zog tau dhau los ua ib qho kev xaiv nrov tshaj plaws rau kev tsim hluav taws xob hauv tsev thiab kev lag luam.Hnub ci vaj huam sib luagtso cai rau cov tswv tsev thiab cov lag luam los siv lub zog ncaj qha los ntawm lub hnub, txo qhov kev cia siab ntawm daim phiaj hluav taws xob. Txawm li cas los xij, cov lus nug tseem ceeb tshwm sim thaum txhim kho lub hnub ci: Koj ua li cas xam cov kW (kilowatts) rau hnub ci vaj huam sib luag?
Cov txheej txheem ntawm kev suav cov kilowatts (kW) uas koj lub hnub ci vaj huam sib luag tuaj yeem tsim tau yog qhov tseem ceeb rau kev tsim lub hnub ci zoo. Kab lus no yuav taug kev koj los ntawm cov kauj ruam los xam cov kW rau hnub ci vaj huam sib luag thiab piav qhia qhov tseem ceeb ntawm cov khoom tseem ceeb xws li hnub ci cables thiab hnub ci xov hlau hauv lub cev.
Nkag siab Kilowats hauvSolar Systems
Hauv cov tshuab hluav taws xob hnub ci, lub sij hawm kW yog hais txog tus nqi hluav taws xob uas tsim los ntawm lub hnub ci vaj huam sib luag. Nws yog ib chav ntsuas rau lub hwj chim, sawv cev rau 1, 000 watts. Thaum koj pom 5 kW hnub ci, nws txhais tau tias lub kaw lus tuaj yeem tsim 5, 000 watts ntawm lub zog nyob rau hauv cov xwm txheej zoo.
Txhawm rau xam cov kW rau hnub ci vaj huam sib luag, koj yuav tsum nkag siab tias qhov loj ntawm koj qhov system-feem ntau ntsuas hauv watts lossis kilowatts-hais txog cov hnub ci vaj huam sib luag thiab kev ua haujlwm ntawm lub system. Hnub ci vaj huam sib luag raug ntsuas raws li lawv cov wattage, uas yog hais txog hluav taws xob ntau npaum li cas lawv tuaj yeem tsim tau raws li qhov kev pom zoo (xws li hnub ci tag nrho).
Cov kauj ruam los xam kW rauHnub Ci Vaj Huam Sib Luag
Ntawm no yog cov lus qhia ib kauj ruam dhau los ntawm kev suav tag nrho kW uas lub hnub ci tuaj yeem tsim tau.
1. Txheeb xyuas Wattage ntawm Koj Cov Vaj Huam Sib Luag Hnub Ci
Txhua lub hnub ci vaj huam sib luag tuaj nrog qhov ntsuas wattage, feem ntau ntawm 250 watts thiab 400 watts ib lub vaj huam sib luag. Lub wattage ntawm txhua lub vaj huam sib luag sawv cev rau tus nqi ntawm lub zog nws tuaj yeem tsim tau thaum raug tshav ntuj zoo.
Piv txwv li:
Ib tug 300-watt vaj huam sib luag yuav tsim 300 watts ntawm hluav taws xob nyob rau hauv zoo tagnrho tej yam kev mob.
Ib tug 350-watt vaj huam sib luag yuav tsim 350 watts nyob rau hauv cov xwm txheej zoo sib xws.
2. Txiav txim seb tus naj npawb ntawm cov hnub ci vaj huam sib luag
Txhawm rau xam tag nrho kW rau koj lub hnub ci, koj yuav tsum paub cov xov tooj ntawm cov vaj huam sib luag uas koj npaj yuav nruab. Tus naj npawb ntawm cov vaj huam sib luag feem ntau yog txiav txim siab raws li qhov xav tau ntawm lub zog ntawm koj lub tsev lossis kev lag luam, nrog rau ntau qhov chaw koj muaj rau kev teeb tsa.
3. Xam tag nrho Wattage ntawm Koj Lub Hnub Ci
Thaum koj paub cov wattage ntawm txhua lub vaj huam sib luag thiab tag nrho cov vaj huam sib luag, koj tuaj yeem suav tag nrho cov wattage ntawm koj lub hnub ci. Qhov no yog ua los ntawm kev muab cov wattage ntawm ib lub vaj huam sib luag los ntawm tag nrho cov panels.
Formula:
Tag nrho Wattage=Number of Panels × Wattage per Panel
Piv txwv li:
Yog tias koj muaj 20 panels ntawm 300 watts txhua, tag nrho wattage yuav yog:
20 × 300=6, 000 watts los yog 6 kW
Yog tias koj muaj 18 panels ntawm 350 watts txhua, tag nrho wattage yuav yog:
18 × 350=6, 300 watts lossis 6.3 kW
4. Hloov tag nrho Wattage rau Kilowatts
Txij li 1 kW=1, 000 watts, koj tuaj yeem hloov tag nrho wattage rau kilowatts los ntawm faib tag nrho cov wattage los ntawm 1, 000.
Rau cov piv txwv saum toj no:
6, 000 watts=6 kW
6,300 watts=6.3 kW
5. Xav txog hnub ci irradiance thiab qhov chaw
Thaum koj tam sim no paub yuav ua li cas xam cov kW raws li vaj huam sib luag wattage, nws yog ib qho tseem ceeb uas yuav tau xav txog lub hnub ci irradiance los yog hnub ci teev nyob rau hauv koj qhov chaw. Tus nqi ntawm lub zog koj cov vaj huam sib luag tuaj yeem tsim tau nyob ntawm seb lub hnub ci koj qhov chaw tau txais ntau npaum li cas txhua hnub.
Piv txwv li, lub hnub ci vaj huam sib luag hauv California (uas muaj hnub ci ntau teev) yuav tsim lub zog ntau dua li lub vaj huam sib luag zoo sib xws hauv Seattle. Qhov nruab nrab, feem ntau qhov chaw tau txais li ntawm 4-6 teev ntawm hnub ci puv ib hnub.
6. Account rau System Losses
Nws tseem yog ib qho tseem ceeb uas yuav tsum tau them nyiaj rau qhov kev poob thaum xam qhov tseeb lub zog tsim los ntawm koj lub hnub ci vaj huam sib luag. Qhov system poob tuaj yeem tshwm sim vim muaj ntau yam:
Inefficiencies hauv inverter (hloov DC rau AC zog)
Wiring losses (kuj nyob rau hauv cov hlau)
Plua plav thiab av ntawm panels (txo efficiency)
Qhov nruab nrab, koj yuav tsum cia siab tias nyob ib puag ncig 10% qhov kev poob, uas txhais tau hais tias koj qhov kev tawm dag zog tiag tiag yuav nyob ib puag ncig 90% ntawm cov txiaj ntsig theoretical.
Piv txwv ntawm xam kW rau lub Hnub Ci System
Cia peb taug kev los ntawm ib qho piv txwv uas peb suav cov kW rau 6 kW hnub ci system, suav nrog yuav ua li cas lub vaj huam sib luag wattage cuam tshuam rau tag nrho cov kab ke.
Kauj Ruam 1: Xaiv Vaj Huam Sib Luag Wattage
Xav tias koj tab tom xaiv 300-watt solar panels rau koj lub installation.
Kauj Ruam 2: Txiav txim seb tus lej ntawm cov vaj huam sib luag
Rau 6 kW system:
Tag nrho Wattage =6, 000 watts
Tam sim no, faib tag nrho wattage los ntawm wattage ntawm txhua lub vaj huam sib luag:
Tus lej ntawm Vaj Huam Sib Luag =6, 000 watts / 300 watts ib lub vaj huam sib luag =20 panels
Kauj ruam 3: Hloov mus rau kW
Cov zis tag nrho yog 6, 000 watts lossis 6 kW.
Kauj ruam 4: Xav txog qhov System Losses
Yog tias koj qhov kev paub dhau los10% poob, koj yuav tsum tau kho rau qhov no:
Kho cov zis {{0}},000 watts × 0.90=5,400 watts=5.4 kW
Yog li, tom qab sau nyiaj rau qhov kev poob qis, koj qhov kev tso tawm tiag tiag yuav nyob ib puag ncig 5.4 kW.
Lub luag haujlwm ntawm Solar Cables thiab Hnub Ci Hlau hauv Koj Lub Hnub Ci
Thaum koj tau suav cov kW rau koj lub hnub ci, cov kauj ruam tom ntej yog kom ntseeg tau tias cov hluav taws xob tsim los ntawm cov vaj huam sib luag tau zoo xa mus rau lub inverter thiab tom qab ntawd mus rau hauv daim phiaj hluav taws xob lossis koj lub tsev. Qhov no yog qhov chaw hnub ci cables thiab hnub ci xaim tuaj rau hauv kev ua si.
1. Solar Cables: Muaj nuj nqi thiab qhov tseem ceeb
Hnub ci cables yog cov khoom siv hluav taws xob siv los txuas cov hnub ci vaj huam sib luag, inverter, roj teeb, thiab lwm yam khoom ntawm koj lub hnub ci. Cov kab hluav taws xob no yuav tsum ua kom ntev, huab cua-resistant, thiab muaj peev xwm nqa tau tam sim no los ntawm lub hnub ci vaj huam sib luag mus rau lub inverter yam tsis muaj kev poob loj.
TUV Certified Solar Cables: Cov no yog cov cables uas raug kuaj rau lub sij hawm ntev, UV tsis kam, thiab kub kam rau siab. TUV-certified cables feem ntau siv rau kev teeb tsa sab nraum zoov vim tias lawv tuaj yeem tiv taus cov xwm txheej hnyav, suav nrog UV hluav taws xob, nag, thiab kub kub.
MC4 Connectors:MC4 connector yog tus qauv connector siv nyob rau hauv lub hnub ci vaj huam sib luag rau series thiab parallel sib txuas. Nws ua kom muaj kev sib txuas ruaj ntseg thiab tiv thaiv dej los yog av nkag, uas tuaj yeem cuam tshuam rau kev ua haujlwm ntawm lub cev.
2. Solar Wire Gauge: Xaiv qhov loj me
Qhov ntsuas ntawm cov hlau siv hauv koj lub hnub ci yog qhov tseem ceeb rau kev nyab xeeb thiab kev ua haujlwm. Lub ntsuas hluav taws xob txiav txim siab tus nqi ntawm cov xaim tam sim no tuaj yeem nqa yam tsis muaj overheating lossis kev txom nyem ntau dhau qhov poob qis. Feem ntau, qhov loj ntawm cov xaim, qhov kev ua haujlwm qis dua, thiab qhov ua tau zoo dua nws xa hluav taws xob.
Lub ntsuas hluav taws xob nyob ntawm qhov tam sim no lub kaw lus tsim los tswj thiab qhov kev ncua deb ntawm cov panels thiab lub inverter. Feem ntau siv cov ntsuas hluav taws xob rau cov hnub ci vaj huam sib luag muaj xws li 10 AWG, 8 AWG, thiab 6 AWG rau DC circuits.
10 AWG kab:Siv rau luv luv thiab qis tam sim no.
6 AWG wr: Rau kev ncua deb lossis siab dua tam sim no tuav.
3. Hlau Sizing rau Inverters
Inverters hloov cov hluav taws xob DC uas tsim los ntawm cov hnub ci vaj huam sib luag rau hauv AC hluav taws xob siv hauv koj lub tsev lossis xa mus rau daim phiaj. Qhov loj ntawm lub inverter txiav txim siab cov hlau ntsuas xav tau rau ob sab DC (los ntawm cov vaj huam sib luag mus rau inverter) thiab AC sab (los ntawm inverter mus rau lub vaj huam sib luag hluav taws xob).
Rau 6 kW inverter, lub ntsuas hluav taws xob feem ntau yog 10 AWG rau 8 AWG rau DC sab, nyob ntawm qhov tam sim no, thiab 10 AWG lossis 8 AWG rau sab AC.
4. Tsawg zog poob
Kev siv lub ntsuas hluav taws xob kom raug yog qhov tseem ceeb los tiv thaiv kom tsis txhob muaj hluav taws xob ntau dhau vim muaj kev tiv thaiv hauv cov xov hlau. Rau ib tug raug 6 kW system, siv cov xov hlau uas nyias nyias (siab dua tus lej ntsuas) tuaj yeem ua rau muaj qhov cuam tshuam loj heev, txo cov kev ua haujlwm ntawm lub cev. Yog li ntawd, kom ntseeg tau qhov tseeb qhov loj me ntawm cov cables thiab cov xaim hluav taws xob txo qis zog thiab ua kom lub zog siv tau ntau tshaj plaws.