Rau cov phiaj xwm off-grid, thawj lo lus nug yog yuav luag ib txwm: Lub zog hluav taws xob ntau npaum li cas kuv lub hnub ci hluav taws xob hluav taws xob xav tau?
Tsis muaj ib qho loj-haum-tag nrho cov lus teb. Qhov ntsuas hluav taws xob xav tau yuav tsum raug xam, tsis yog xaiv tau yooj yim. Ib qho kev xav tsis raug tuaj yeem ua rau raug nqi rov ua haujlwm: ib qho kev ua haujlwm tsis zoo yuav ua tsis tau los txhawb nqa lub nra, thaum lub kaw lus loj sib txuas nrog peev hauv peev uas yuav tsis siv.
Phau ntawv qhia no rhuav tshem txoj kev sizing, muab cov lus qhia ceev ceev rau cov xwm txheej ua haujlwm, thiab piav qhia vim li cas PV modules, inverters thiab lub zog cia yuav tsum suav nyias.
Pib los ntawm kev suav peb qhov tseem ceeb
Kev siv hluav taws xob txhua hnub (kWh / hnub)
Qhov no yog qhov pib taw tes rau tag nrho cov sizing xam. Dab tsi tseem ceeb yog qhov hluav taws xob tiag tiag siv dhau 24 teev - tsis yog qhov suav ntawm cov khoom siv npe npe lossis cov khoom siv sib npaug los ntawm lawv lub zog ntsuas.
Muaj peb txoj hauv kev los kwv yees kev noj ntawm qhov chaw:
- Tshawb xyuas keeb kwm kev nyeem ntawv 'meter'.Qhov no feem ntau yog txoj hauv kev zoo tshaj plaws rau cov haujlwm nrog cov kab sib txuas uas twb muaj lawm lossis lub tshuab hluav taws xob diesel.
- Xam los ntawm ib daim ntawv teev cov khoom siv.Xam txog txhua lub cuab yeej siv lub zog los ntawm kev muab nws lub zog ntsuas los ntawm nws cov sijhawm ua haujlwm txhua hnub.
- Siv cov phiaj xwm sib piv ua ib qho kev siv.
Txoj kev thib peb feem ntau yog siv rau cov chaw tsim kho tshiab los yog qhov chaw mining. Kev kwv yees kev lag luam ib txwm yog: 30-tus neeg tsim kho chaw pw: 60-120 kWh / hnub; 100-tus neeg tsim kho chaw pw hav zoov: 250-400 kWh / hnub.
Peak Power thiab Demand Factor
Peak fais fab txiav txim siab lub peev xwm inverter xav tau, thaum lub zog siv hluav taws xob txhua hnub txiav txim siab qhov xav tau PV muaj peev xwm. Cov no yog ob qhov sib txawv.
Cov khoom siv hauv tsev tsis nquag ua haujlwm ntawm kev thauj khoom ib txhij. Ib qho kev xav tau ntawm 0.6-0.8 yog feem ntau siv hauv kev kwv yees engineering. Piv txwv li qhov xav tau ntawm 1.0 tuaj yeem ua rau muaj qhov loj dua inverter, tawm hauv lub peev xwm ntau dhau ntawm qhov project lifecycle.
Ib qho tseem ceeb xav txog yog cov khoom siv nrog lub zog muaj zog, xws li cov twj tso kua dej, crushers thiab cov khoom nqa nqa. Lawv qhov pib tam sim no yuav tsum raug xam cais. Lub tam sim no pib tam sim no ntawm lub induction lub cev muaj zog siv ncaj-on-line pib tuaj yeem ncav cuag 5-7 npaug ntawm nws qhov ntsuas tam sim no. Yog hais tias qhov teeb meem no tsis tau hais txog, txawm tias ib qho kev hloov pauv loj txaus tuaj yeem ua rau nws txoj kev tiv thaiv.
Kev siv hluav taws xob hmo ntuj raws li qhov feem pua ntawm kev siv txhua hnub
Daim duab no txiav txim siab txog lub zog khaws cia. Rau cov chaw pw hav zoov uas tsis muaj neeg nyob hauv nruab hnub tab sis siv hluav taws xob tseem ceeb thaum hmo ntuj, kev siv hmo ntuj feem ntau tuaj yeem tshaj 50% ntawm kev siv txhua hnub. Rau cov chaw nres tsheb uas ua haujlwm feem ntau thaum nruab hnub nrig, qhov sib faib hmo ntuj yuav qis dua 20%.
Qhov qis dua qhov sib faib hmo ntuj, qhov ntau cia ua haujlwm ntxiv. Qhov siab dua qhov sib koom, qhov tseem ceeb ntawm lub zog khaws cia rau tag nrho cov system.
Quick Power Reference rau Kev Ua Haujlwm Zoo Tshaj Plaws
Cov lus hauv qab no qhia txog qhov sib txawv rau rau rau qhov kev ua haujlwm sib xws. Cov nuj nqis no yog ua raws li kev ua lag luam; qhov kev xav tau tiag tiag yuav tsum raug txheeb xyuas tawm tsam daim ntawv teev npe.
| Kev Ua Haujlwm Scenario | Kev siv hluav taws xob txhua hnub (kWh) | Peak zog (kW) | Hmo ntuj noj | Pom zoo PV Peev Xwm | Pom zoo zog cia |
| 30-tus neeg tsim kho camp | 60–120 : kuv | 15–25 | 50% -60% | 20 kW series | 40 kWh |
| 100-neeg tsim kho camp | 250-400 Nws | 50–70 : kuv | 50% -60% | 56-75 kW series | 121 kWh os |
| Ob lub twj tso kua mis 22 kW (ib qho kev ua haujlwm, ib qho standby) | 200-300 | 40–50 : kuv | Hauv qab 20% | 56 kW tsi | Yeem, raws li xav tau |
| 12 × 400 W qhov chaw teeb (10 teev tsaus ntuj) | 50 | 5 | 100% | 20 kW series | 40 kWh |
| Kev sib txuas lus hauv paus chaw nres tsheb (24/7 ua haujlwm) | 60–90 : kuv | 3–5 | 100% | 20 kW series | 40 kWh |
| Vuam tshuab, txiav cov cuab yeej thiab cov cuab yeej hluav taws xob me me | 80–150 : kuv | 20–40 : kuv | Kwv yees li 30% | 56 kW tsi | Yeem, raws li xav tau |
Txhawm rau siv cov lus no, ua ntej txheeb xyuas qhov xwm txheej ntawm kev ua haujlwm thiab xyuas seb qhov twg yog qhov sib npaug ntawm kev siv lub zog txhua hnub. Yog tias lub zog siab tshaj plaws thiab kev siv hluav taws xob niaj hnub taw qhia rau qhov sib txawv ntawm qhov sib txawv, siv qhov ntsuas hluav taws xob ntau dua li qhov pib, tom qab ntawd xyuas seb puas muaj peev xwm PV txaus.
Vim li cas PV Modules, Inverters thiab Lub Zog Cia Yuav Tsum Tau Ua Raws Cai
DC / AC ratio: PV Peev xwm feem ntau siab dua Inverter Rated tso zis
PV module tso zis yog ntsuas raws li cov qauv ntsuas: qhov ntsuas kub ntawm 25 ° C, irradiance ntawm 1,000 W / m² thiab huab cua huab cua coefficient ntawm AM1.5. Thaum lub module backsheet kub nce mus txog 65 ° C ntawm qhov chaw, crystalline silicon modules nrog qhov kub thiab txias coefficient ntawm -0.3% / ° C tuaj yeem ua rau txo qis ntawm kwv yees li 12% -14%.
Yog hais tias PV muaj peev xwm thiab inverter rated tso zis yog sib npaug ntawm 1: 1 piv, lub kaw lus yuav tsis ncav cuag lub inverter cov zis tawm thaum lub sij hawm kub tshaj plaws ntawm ib hnub, tawm hauv ib co inverter muaj peev xwm underutilized.
Ib qho kev coj ua hauv kev lag luam yog qhov loj ntawm PV lub peev xwm ntawm 1.1-1.3 npaug ntawm cov khoom siv hluav taws xob tso tawm. Qhov piv no yog hu ua DC / AC ratio. Nws tsis yog ib qho inflated ntsuam xyuas; nws pab ua kom zoo siv cov hnub ci irradiance.
Yuav ua li cas xam lub zog cia muaj peev xwm
Lub zog cia muaj peev xwm nyob ntawm qhov kev siv hluav taws xob hmo ntuj thiab qhov tso tawm qhov tob (DoD).
| Hmo ntuj noj raws li ib feem ntawm kev siv txhua hnub | Yuav tsum tau cia rau 100 kWh / hnub ntawm kev siv | Kev piav qhia |
| 20% | Kwv yees li. 22-25 kWh | Npog lub teeb pom kev yav tsaus ntuj thiab kev sib txuas lus nkaus xwb, piv txwv li 90% qhov tob ntawm kev tso tawm |
| 40% | Kwv yees li. 45-50 kWh | Npog cov khoom pabcuam thauj khoom thaum yav tsaus ntuj |
| 60% | Kwv yees li. PEB 67–75 kWh | Rau cov xwm txheej ua haujlwm ib puag ncig, nrog lub peev xwm ntxiv tshwj xeeb rau hnub huab lossis nag |
| 100% (kev sib txuas lus hauv paus chaw nres tsheb) | Kwv yees li. 110-120 kWm | Yuav tsum xav txog kev tsim qauv rau 2-3 hnub sib law liag los yog nag los nag |
Kev suav yuav qhia tau tias:
Lub peev xwm khaws cia lub zog = Kev siv hluav taws xob niaj hnub × Hmo ntuj noj sib qhia ÷ Qhov tob ntawm kev tso tawm × Huab cua-huab cua tshwj xeeb (1.0–1.3)
Qhov xwm txheej redundancy tuaj yeem txheeb xyuas tawm tsam cov ntaub ntawv huab cua hauv zos siv JRC PVGIS off-grid system module.
Rau lithium hlau phosphate (LFP) roj teeb, tus nqi tsim tawm qhov tob yog 90%. Tsis txhob suav ntawm qhov kev xav ntawm 100% DoD, vim qhov no tuaj yeem cuam tshuam lub neej voj voog.
Lub Sij Hawm Lub Neej thiab Lub Sijhawm Hloov
Lithium hlau phosphate roj teeb tuaj yeem ua tiav 5,000-8,000 cycles ntawm 80% qhov tob ntawm kev tso tawm. Piv txwv li ib lub voj voog them tawm ib hnub, qhov no sib raug rau kwv yees li 13-21 xyoo. Qhov no yog luv dua li lub npe 25-xyoo kev pab cuam lub neej feem ntau teev rau PV modules. Lub zog cia yuav yog li yuav tsum tau hloov pauv thaum lub sij hawm lub neej ntawm lub cev thiab yuav tsum tsis txhob saib xyuas hauv kev suav nyiaj txiag.
Sib piv koj qhov project mus rau ib qho ntawm Rau Cov Khoom Muag
ZM-Besta lub xov tooj ntawm tes hnub ci fais fab chaw nres tsheb muaj nyob rau hauv rau lub hwj chim series, npog 20 kW txog 200 kW, nrog 24 qauv nyob rau hauv tag nrho. Cov ntsiab lus tseem ceeb tau teev tseg hauv qab no.
| Series | Nruab PV Capacity | PV Module Hom | Fais fab rau Module | Deployed Footprint | Khoom hnyav (tsis suav nrog lub zog cia) | Txheem Zog Cia |
| 20 kWm | 15-20 kWm | N-type TOPCon | 690-720 W | 33-39 m × 4 m | 3.8-4.3 ib | 40 kWh |
| 56 kW ua | 40-56 kW | N-type TOPCon | 440-460 W | 63-85 m × 6 m | 12.5-15.00 Nws | 121 kWh os |
| 75 kW ua | PEB 56–77 kW | N-type TOPCon | 440-460 W | 63-85 m × 6 m | 12-15 : kuv | Yeem, raws li xav tau |
| 150 kW | 109-152 kWm | N-type TOPCon | 510-530 W | 70-96 m × 12 m | 33–36 : kuv | 2 61 kWh |
| 175 kW tsi | 133-175 kW | N-type TOPCon | 510-530 W | 70-96 m × 12 m | 31–34.5 : kuv | Yeem, raws li xav tau |
| 200 kW | 148-204 kWm | N-type TOPCon | 580-600 W | 85-110 m × 12 m | 31–34 : kuv | Yeem, raws li xav tau |
Common specifications thoob plaws cov khoom ntau yam:
- Lub kaum sab xis installation: 25 °
- Ncej nrog lub kaum sab xis: 130 °
- Kub-dip galvanized txheej ntawm tus ncej: ≥55 μm
- Zinc-aluminium-magnesium txheej ntawm cov lus qhia: ≥275 g / m²
- Lub sij hawm xa mus: ≤30 feeb
- Cua tiv thaiv tom qab xa tawm: Qib 9
- Ntsev-txhaj tshuaj tiv thaiv: ≤C5
- Ua haujlwm kub: -20 ℃ to + 50 ℃
- Kev tiv thaiv ntsuas nyob rau hauv stowed configuration: IP55
- Hybrid inverter tso zis: 380V / 400V, peb-theem, plaub-xaim
- Zaus: 50/60 Hz
Plaub qhov yuam kev loj tshaj plaws kom zam
Tsuas Ntxiv Cov Khoom Siv Lub Npe Ntsuas Kev Ntsuas
Ntxiv lub zog ntsuas ntawm txhua yam khoom ntawm cov khoom siv feem ntau ua rau kwv yees li 30% -50% siab dhau. Cov khoom siv tsis yog txhua yam ua haujlwm ib txhij, thiab qhov sib txawv tuaj yeem txhais ncaj qha rau hauv cov nqi tsis tsim nyog.
Ignoring Temperature-Related Output Losses
Nyob rau hauv cov suab puam mining thaj chaw nrog ambient kub ntawm 45 ° C, PV module backsheet kub muaj peev xwm tshaj 70 ° C, txo cov zis los ntawm ze li ntawm 15%. Sizing ib lub kaw lus raws li tus qauv ntsuas ntawm 25 ° C tuaj yeem ua rau qis dua qhov kev xav tau tiag tiag.
Sizing Zog Cia rau Peak Load
Lub zog cia nyiaj rau ib qho kev faib ua feem ntawm tag nrho cov nqi system. Sizing cia raws li lub hwj chim ncov txhais tau tias them rau tag nrho ib hnub lub peev xwm los npog lub ncov uas yuav tshwm sim rau ob teev xwb. Txoj hauv kev kom raug yog qhov loj me me raws li kev siv hluav taws xob hmo ntuj.
Overlooking Transportation thiab Lifting Requirements
Cov cuab yeej siv nrog cov hneev taw ntawm 110 m × 12 m thiab qhov hnyav ntawm 34 t yuav tsum tau kuaj ua ntej ntawm qhov chaw nkag mus, tig lub vojvoog thiab crane nqa lub peev xwm. Txoj kev ib ntus ntawm qhov chaw mining feem ntau yog tsim los rau lub teeb tsheb. Yog tias lub tsheb hnyav nkag mus thiab tshem tawm qhov yuav tsum tau saib xyuas, cov cuab yeej tuaj yeem tuaj txog ntawm qhov chaw tab sis tsis tuaj yeem rub tawm.
Cov lus nug nquag
Q1: Ntau npaum li cas hluav taws xob tuaj yeem ua tau 20 kW mobile hnub ci fais fab chaw nres tsheb ib hnub?
Ntau tiam nyob ntawm lub hnub ci hauv zos. Piv txwv li 4.5 lub hnub ncov teev thiab kev ua haujlwm ntawm 0.75-0.8, txhua 1 kW ntawm PV muaj peev xwm tsim tau kwv yees li 3.4-3.6 kWh ib hnub. Yog li, 20 kW system yuav tsim kwv yees li 68-72 kWh / hnub. Nyob rau hauv cov cheeb tsam nrog 5.5 lub hnub ncov teev, txhua hnub tiam yuav ncav cuag ib ncig ntawm 85 kWh.Qhov tseeb hauv zos PVOUT tuaj yeem nug los ntawm kev sib koom tes hauv Ntiaj teb no Solar Atlas.
Q2: Lub kaw lus puas tuaj yeem ncaj qha lub zog tsav lub cev muaj zog?
Yog lawm, tab sis pib tam sim no yuav tsum raug xam. Lub 22 kW induction lub cev muaj zog uas siv ncaj qha-on-line pib tuaj yeem kos qhov tam sim no ntawm 110-150 A. Lub inverter yuav tsum muaj peev xwm txaus dhau los ua qhov kev thov no. Rau cov motors siab zog, lub tshuab hluav taws xob muag muag lossis lub zog sib txawv (VFD) raug pom zoo kom txo cov pib tam sim no thiab cov hluav taws xob cuam tshuam.
Q3: Lub kaw lus puas tuaj yeem ua haujlwm yam tsis muaj lub zog cia?
Yog lawm. Rau cov ntawv thov uas tsuas yog siv hluav taws xob thaum nruab hnub, xws li cov chaw nres tsheb thiab kev ua haujlwm crushing, lub kaw lus yuav ua haujlwm yam tsis muaj lub zog cia, nrog lub inverter muab lub zog teb rau cov khoom thauj. Txawm li cas los xij, cov ntawv thov uas xav tau lub zog thaub qab thaum hmo ntuj lossis thaum huab cua huab xav tau lub zog cia.
Q4: Lub kaw lus puas tuaj yeem nthuav dav?
Cov qauv tsim qauv txhawb nqa lub peev xwm nthuav dav los ntawm kev ntxiv thiab txuas ntxiv cov chav nyob hauv qhov sib npaug. Ua ntej nthuav dav, xyuas lub inverter qhov siab tshaj plaws tso cai tus naj npawb ntawm cov khoom sib txuas thiab qhov muaj peev xwm ntawm qhov txuas txuas. Ntxiv PV peev xwm ib leeg yam tsis muaj kev txhim kho cov hluav taws xob faib hluav taws xob yuav tsis txaus.
Q5: Cov cuab yeej siv tau ntev npaum li cas nyob rau hauv ib puag ncig ntsev?
Cov khoom lag luam tau teev tseg nrog kev ntsuas tshuaj ntsev-txhaj tshuaj tiv thaiv ntawm ≤C5 thiab kub-dip galvanized thav duab txheej ntawm ≥55 μm. Raws li ISO 12944 corrosion classifications, C5-M yog hais txog corrosive marine ib puag ncig, nrog rau qee qhov chaw ntug dej hiav txwv hauv 500 m ntawm hiav txwv. Nrog rau qib kev tiv thaiv no thiab kev tshuaj xyuas tsis tu ncua, lub kaw lus yuav txhawb nqa lub sijhawm ua haujlwm ntau dua 15 xyoo. Lub neej ua haujlwm tiag tiag tseem nyob ntawm qhov chaw tshwj xeeb corrosion thiab tu zaus.
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