Ua kom zooRoj teeb muaj peev xwm rau hnub ci-Powered LEDTxoj kev teeb
|
1. Cov ntsiab lus tseem ceeb ntawm roj teeb -LED Matching 2. Kauj Ruam -los ntawm - Kauj Ruam Kev Ntsuas 3. Hnub Ci Vaj Huam Sib Luag Sizing Synergy 4. Tiag -World Design Cases 5. Cov hom kev ua tsis tiav tseem ceeb & cov kev daws teeb meem 6. Kev Tsim Kho Tshiab |
Email: bwzm12@benweilighting.com
Hnub ci -powered LED streetlights muab cov teeb pom kev zoo hauv nroog, tab sis cov roj teeb tsis raug cai -LED lub zog sib piv ua rau lub cev tsis ua haujlwm, luv luv lifespan, lossis nce nqi. Phau ntawv qhia no tshawb txog cov hauv paus ntsiab lus tseem ceeb, kev suav, thiab tiag -lub ntiaj teb kev daws teeb meem rau kev ua kom lub zog zoo dua qub.
1. Cov ntsiab lus tseem ceeb ntawm roj teeb -LED Matching
A. Kev sib npaug zog
Kev siv LED txhua hnub (Wh)=Solar Generation (Wh) + Roj teeb Tsis Muaj (Wh)
B. Cov yam ntxwv tseem ceeb
| Hloov pauv | Kev cuam tshuam rau roj teeb qhov loj me |
|---|---|
| LED Wattage & Runtime | Directly scales zog thov |
| Hnub ntawm Autonomy (DoA) | Txiav txim siab muaj peev xwm backup rau tsawg- hnub hnub |
| Qhov tob ntawm qhov tso tawm (DoD) | txwv lub peev xwm siv tau (piv txwv li, 50% rau Lead-acid) |
| Hauv zos Solar Insolation | Muaj feem cuam tshuam rau kev them rov qab ceev (kWh / m² / hnub) |
| Kub | Txo cov roj teeb ua haujlwm hauv cov huab cua txias |
C. Roj teeb Chemistry piv
| Parameter | Lead-Acid | LiFePO4 |
|---|---|---|
| DoD | 50% | 80-90% |
| Lub neej voj voog | 500-800 | 2,000-5,000 |
| Temp. Ntau yam | -20℃rau 50 degree | -30℃rau 60 degree |
| Nqi ib kWh | $100-$150 | $300-$500 |
2. Kauj Ruam -los ntawm - Kauj Ruam Kev Ntsuas
Formula:
Roj teeb muaj peev xwm (Ah)=[LED Fais Fab (W) × Teev / Hnub × DoA] / [System Voltage (V) × DoD × Efficiency Factor (0.85)]
Case Study: 60W LED Streetlight hauv Berlin, Lub Tebchaws Yelemees
Inputs:
LED Lub Zog: 60W
Lub sijhawm ua haujlwm txhua hnub: 12 teev
DoA: 3 hnub (rau huab cua caij ntuj no)
Qhov System Voltage: 24V DC
DoD: 80% (LiFePO4)
Ua haujlwm zoo: 0.85 (inverter / maub los poob)
Kev suav:
Kev siv txhua hnub=60W × 12h=720Wh
Total Buffer Xav tau=720Wh × 3=2,160Wh
Roj teeb muaj peev xwm (Ah)=2, 160Wh / (24V × 0.8 × 0.85) ≈ ** 132Ah **
Pom zoo: 24V 150Ah LiFePO4 roj teeb (tso cai 10% npoo).
3. Hnub Ci Vaj Huam Sib Luag Sizing Synergy
Txoj cai:Hnub ci array yuav tsum tau them tag nrho cov roj teebthiablub zog LEDs txhua hnub.
Formula:
Hnub Ci Vaj Huam Sib Luag Wattage (W)=[Txhua Hnub Siv LED (Wh) × 1.3] / Peak Sun Teev
Berlin Piv txwv:
Peak Sun Sijhawm: 2.5 (lub caij ntuj no)
Vaj huam sib luag Loj=(720Wh × 1.3) / 2.5 ≈375W→ Round mus rau 400W
4. Tiag -World Design Cases
Case 1: Highway Lighting (120W LED, Dubai)
| Parameter | Tus nqi |
|---|---|
| Txhua hnub Runtime | 10 teev |
| Ua | 2 hnub |
| Peak Sun Sijhawm | 5.5 |
| Roj teeb loj | 24V 200Ah LiFePO4 |
| Hnub ci Array | 2 × 300W panels |
Case 2: Txoj Kev Nyob Hauv Tsev (30W LED, Seattle)
| Parameter | Tus nqi |
|---|---|
| Txhua hnub Runtime | 8 hnu |
| Ua | 5 hnub |
| Peak Sun Sijhawm | 2.0 (lub caij ntuj no) |
| Roj teeb loj | 12V 300Ah LiFePO4 |
| Hnub ci Array | 1 × 250W vaj huam sib luag |
5. Cov hom kev ua tsis tiav tseem ceeb & cov kev daws teeb meem
Undersizing:
Cov tsos mob:Teeb dim/disconnect tom qab hnub huab cua sib law liag.
Kho:Nce DoA lossis roj teeb muaj peev xwm los ntawm 25%.
Oversizing:
Cov tsos mob:Chronic undercharging → sulfation hauv lead-acid roj teeb.
Kho:Txoj cai - qhov loj me lossis siv cov roj teeb lithium.
Voltage poob:
Cov tsos mob:Flickering teeb thaum lub sij hawm peak load.
Kho: Use 24V/48V systems (not 12V) for LEDs >50W.
6. Kev Tsim Kho Tshiab
Smart Controllers:
Algorithms kho brightness raws li roj teeb SOC (xws li, dim mus rau 70% ntawm 40% SOC).
Hybrid Cia:
Supercapacitors tswj lub siab tshaj plaws loads, ncua roj teeb lub neej.
Huab Cua Huab Cua:
IoT systems txo lub sij hawm khiav ua ntej qis - lub hnub ci.
Xaus
Lub roj teeb meej-LED sib piv yuav tsum tau tshuaj xyuashuab cua hauv zos, LED efficiency, thiabroj teeb chemistry. LiFePO4 roj teeb, txawm tias tus nqi siab dua, muab kev ua neej ntev dua thiab kev sib sib zog nqus sib sib zog nqus -txo TCO los ntawm 30-40% tshaj 10 xyoo. Rau 60W LED system nyob rau hauv temperate aav:
Yam tsawg kawg nkaus:100Ah lithium roj teeb + 300W hnub ci
Qhov zoo tshaj plaws:150Ah roj teeb + 400W hnub ci nrog 4-hnub DoA
Tswv yim tsim:Ib txwm simulate systems siv cov cuab yeej xws li PVsyst lossis SAM (NREL) ua ntej xa mus.
