Lub tsev nyob photovoltaic (PV)-storage system feem ntau muaj PV modules, lub zog cia roj teeb, cia inverters, ntsuas cov cuab yeej, thiab kev tswj xyuas kev tswj xyuas. Nws lub hom phiaj yog kom ua tiav lub zog ntawm tus kheej txaus, txo cov nqi hluav taws xob, txo qis carbon emissions, thiab txhim kho kev ntseeg tau ntawm lub zog. Configuring ib lub tsev PV-storage system yog ib tug txheej txheem uas yuav tsum tau ua tib zoo xav txog ntau yam los xyuas kom meej cov hauj lwm zoo thiab ruaj khov.
I. Txheej txheem cej luam ntawm Residential PV-Storage Systems
Ua ntej pib qhov kev teeb tsa, nws yog qhov tseem ceeb los ntsuas qhov DC rwb thaiv tsev tiv thaiv ntawm PV array input davhlau ya nyob twg thiab hauv av. Yog tias qhov kev tiv thaiv tsawg dua U… / 30mA (U… sawv cev rau qhov siab tshaj plaws tso zis hluav taws xob ntawm PV array), yuav tsum tau siv cov kev ntsuas hauv av ntxiv lossis rwb thaiv tsev.
Lub luag haujlwm tseem ceeb ntawm thaj chaw PV-storage systems suav nrog:
- Kev siv tus kheej: Siv lub hnub ci zog kom tau raws li kev xav tau ntawm tsev neeg lub zog.
- Peak-shaving thiab hav-filling: Sib npaug kev siv hluav taws xob thoob plaws lub sijhawm sib txawv kom txuag tau tus nqi hluav taws xob.
- Thaub qab zog: Muab lub zog ruaj khov thaum muaj hluav taws xob.
- Thaum muaj xwm ceev fais fab mov: Txhawb nqa qhov tseem ceeb thaum lub sij hawm daim phiaj tsis ua haujlwm.
Cov txheej txheem kev teeb tsa suav nrog kev txheeb xyuas cov neeg siv lub zog xav tau, tsim PV thiab cov tshuab khaws cia, xaiv cov khoom, npaj cov phiaj xwm teeb tsa, thiab qhia txog kev ua haujlwm thiab kev saib xyuas.
II. Kev Ntsuam Xyuas thiab Kev Npaj
Energy Demand Analysis
Cov ncauj lus kom ntxaws txog kev xav tau lub zog yog qhov tseem ceeb, suav nrog:
- Load profileing: Txheeb xyuas cov kev xav tau ntawm lub zog ntawm ntau yam khoom siv.
- Kev noj txhua hnub: Txiav txim siab qhov nruab nrab siv hluav taws xob thaum nruab hnub thiab hmo ntuj.
- Tus nqi hluav taws xob: Nkag siab txog cov qauv tariff los txhim kho qhov system kom txuag tau nqi.
Case Study
| Table 1 Tag nrho cov ntaub ntawv teev tseg | |||
| khoom siv | Hwj chim | Ntau | Tag nrho lub zog (kW) |
| Inverter cua txias | 1.3 | 3 | 3.9 kWm 3 |
| tshuab ntxhua khaub ncaws | 1.1 | 1 | 1.1 kW tsi |
| Lub tub yees | 0.6 | 1 | 0.6 kWm |
| TV | 0.2 | 1 | 0.2 kWm |
| Lub tshuab rhaub dej | 1.0 | 1 | 1.0 kW tsi |
| Random hood | 0.2 | 1 | 0.2 kWm |
| Lwm yam hluav taws xob | 1.2 | 1 | 1.2 kW tsi |
| Tag nrho | 8.2 kWm 2 | ||
| Table 2 Statistics ntawm cov khoom tseem ceeb (off-grid fais fab mov) | |||
| khoom siv | Hwj chim | Ntau | Tag nrho lub zog (kW) |
| Inverter cua txias | 1.3 | 1 | 1.3 kW tsi |
| Lub tub yees | 0.6 | 1 | 0.6 kWm |
| Lub tshuab rhaub dej | 1.0 | 1 | 1.0 kW tsi |
| Random hood | 0.2 | 1 | 0.2 kWm |
| Teeb pom kev zoo hluav taws xob, thiab lwm yam. | 0.5 | 1 | 0.5 kWm |
| Tag nrho | 3.6 kWm | ||
- Tus neeg siv Profile:
- Tag nrho cov txuas txuas: 8.2 kW
- Lub cev muaj zog: 3.6 kW
- Kev siv hluav taws xob nruab hnub: 10 kWh
- Kev siv hluav taws xob hmo ntuj: 20 kWh
- Txoj Kev Npaj:
- Nruab ib lub PV-storage hybrid system nrog nruab hnub nrig PV tiam lub rooj sib tham load xav tau thiab khaws cia ntau zog hauv cov roj teeb rau kev siv hmo ntuj. Daim phiaj ua lub zog ntxiv thaum PV thiab kev cia khoom tsis txaus.
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III. System Configuration thiab Component Xaiv
1. PV System Design
- Qhov Loj: Raws li tus neeg siv 8.2 kW load thiab noj txhua hnub ntawm 30 kWh, 12 kW PV array raug pom zoo. Cov array no tuaj yeem tsim kwv yees li 36 kWh ib hnub kom tau raws li qhov xav tau.
- PV modules: Siv 21 ib leeg-crystal 580Wp modules, ua tiav lub peev xwm ntawm 12.18 kWp. Xyuas kom pom qhov zoo tshaj plaws rau lub hnub ci tshaj plaws.
Lub zog siab tshaj plaws Pmax [W] 575 ib 580 585 ib 590 ua 595 ib 600 Optimum khiav hauj lwm voltage Vmp [V] 43.73 ib 43.88 ib 44.02 Nws 44.17 Nws 44.31 Nws 44.45 Nws Qhov zoo tshaj plaws kev khiav hauj lwm tam sim no Imp [A] 13.15 Nws 13.22 Nws 13.29 Nws 13.36 Nws 13.43 Nws 13.50 Nws Qhib Circuit Court voltage Voc [V] 52.30 Nws 52.50 Nws 52.70 ib 52.90 ib 53.10 Nws 53.30 Nws Luv Circuit Court tam sim no Isc [A] 13.89 Nws 13.95 Nws 14.01 Nws 14.07 Nws 14.13 Nws 14.19 Nws Module efficiency [%] 22.3 22.5 Nws 22.7 ib 22.8 ib 23.0 Nws 23.2 Output zog kam rau ua 0 ~ + 3% Kub coefficient ntawm lub zog siab tshaj plaws [Pmax] -0.29% / ℃ Kub coefficient ntawm qhib Circuit Court voltage [Voc] -0.25% / ℃ Kub coefficient ntawm luv Circuit Court tam sim no [Isc] 0.045% / ℃ Standard Test Conditions (STC): Lub teeb siv 1000W / m², roj teeb kub 25 ℃, huab cua zoo 1.5 2. Zog Cia System
- Roj Teeb Muaj Peev Xwm: Configure 25.6 kWh lithium hlau phosphate (LiFePO4) roj teeb system. Lub peev xwm no ua kom muaj kev ruaj ntseg txaus rau kev thauj khoom tseem ceeb (3.6 kW) rau kwv yees li 7 teev thaum muaj hluav taws xob.
- Roj teeb Modules: Siv modular, stackable designs nrog IP65-rated enclosures rau sab hauv tsev / sab nraum zoov installation. Txhua lub module muaj peev xwm ntawm 2.56 kWh, nrog 10 modules ua tiav qhov system.
3. Kev xaiv Inverter
- Hybrid Inverter: Siv 10 kW hybrid inverter nrog kev sib koom ua ke PV thiab kev tswj kev cia. Cov yam ntxwv tseem ceeb muaj xws li:
- PV input siab tshaj plaws: 15 kW
- Tso zis: 10 kW rau ob qho tib si kab sib txuas thiab off-grid khiav lag luam
- Kev tiv thaiv: IP65 ntsuam xyuas nrog daim phiaj-off-grid hloov lub sij hawm <10 ms
4. PV Cable xaiv
PV cables txuas hnub ci modules rau lub inverter lossis lub thawv sib txuas. Lawv yuav tsum tiv taus qhov kub thiab txias, tiv thaiv UV, thiab sab nraum zoov.
- TS EN 50618 H1Z2Z2-K:
- Ib leeg-ntxhais, ntsuas rau 1.5 kV DC, nrog zoo heev UV thiab huab cua tsis kam.
- TUV PV1-F:
- Flexible, nplaim-retardant, nrog rau qhov kub thiab txias (-40 ° C txog + 90 ° C).
- UL 4703 PV Hlau:
- Ob chav-insulated, zoo tagnrho rau lub ru tsev thiab hauv av-mounted systems.
- AD8 Floating Solar Cable:
- Submersible thiab waterproof, haum rau cov av noo los yog dej ib puag ncig.
- Aluminium Core Hnub Ci Cable:
- Lub teeb yuag thiab tus nqi tsim nyog, siv hauv kev teeb tsa loj.
5. Zog Cia Cable Xaiv
Cia cables txuas cov roj teeb rau inverter. Lawv yuav tsum tswj cov dej ntws siab, muab thermal stability, thiab tswj cov hluav taws xob ncaj ncees.
- UL10269 thiab UL11627 Cables:
- Nyias-phab ntsa insulated, nplaim-retardant, thiab compact.
- XLPE-Insulated Cables:
- High voltage (txog 1500V DC) thiab thermal kuj.
- High-Voltage DC Cables:
- Tsim los rau kev sib txuas cov roj teeb modules thiab cov tsheb npav siab.
Pom zoo Cable Specifications
Hom kab Pom zoo qauv Daim ntawv thov PV Kab TS EN 50618 H1Z2Z2-K Txuas PV modules rau inverter. PV Kab UL 4703 PV Hlau Kev teeb tsa hauv tsev yuav tsum muaj kev rwb thaiv tsev siab. Zog Cia Cable UL 10269, UL 11627 Compact roj teeb kev sib txuas. Shielded Cia Cable EMI shielded roj teeb Cable Txo kev cuam tshuam hauv cov txheej txheem rhiab. High Voltage Cable XLPE-Insulated Cable Kev sib txuas siab tam sim no hauv cov roj teeb. Floating PV Cable AD8 Floating Solar Cable Dej-nrhiav los yog ib puag ncig humid.
IV. Kev sib koom ua ke
Ua ke PV modules, lub zog cia, thiab inverters rau hauv ib qho kev ua tiav:
- PV System: Tsim qauv qauv tsim thiab ua kom muaj kev nyab xeeb ntawm cov qauv nrog cov txheej txheem mounting tsim nyog.
- Zog Cia: Nruab cov roj teeb modular nrog BMS (Battery Management System) kev koom ua ke rau kev saib xyuas lub sijhawm.
- Hybrid Inverter: Txuas PV arrays thiab roj teeb rau lub inverter rau seamless zog tswj.
V. Kev txhim kho thiab tu
Kev teeb tsa:
- Kev ntsuam xyuas qhov chaw: Tshawb xyuas lub ru tsev lossis thaj chaw hauv av kom pom kev sib haum xeeb thiab raug tshav ntuj.
- Cov khoom siv Installation: Ruaj ntseg mount PV modules, roj teeb, thiab inverters.
- Kev xeem qhov system: Tshawb xyuas kev sib txuas hluav taws xob thiab ua cov kev sim ua haujlwm.
Kev tu:
- Kev soj ntsuam niaj hnub: Xyuas cov cables, modules, thiab inverters rau hnav lossis puas.
- Ntxuav: Tsis tu ncua ntxuav PV modules kom muaj kev ua haujlwm zoo.
- Kev saib xyuas tej thaj chaw deb: Siv cov cuab yeej software los taug qab qhov system ua haujlwm thiab ua kom zoo dua.
VI. Xaus
Ib qho chaw nyob zoo PV-storage system muab kev txuag hluav taws xob, kev pab cuam ib puag ncig, thiab kev cia siab rau lub zog. Kev ua tib zoo xaiv cov khoom xws li PV modules, lub zog cia roj teeb, inverters, thiab cables ua kom lub cev ua haujlwm tau zoo thiab siv tau ntev. Los ntawm kev ua raws li kev npaj tsim nyog,
kev teeb tsa, thiab kev saib xyuas cov txheej txheem, cov tswv tsev tuaj yeem ua kom muaj txiaj ntsig zoo ntawm lawv cov peev txheej.
Post lub sij hawm: Dec-24-2024