一、離網(wǎng)光伏系統(tǒng)組成

光伏組件、離網(wǎng)逆變器（包含光伏充電器/逆變器）、儲能電池（鉛酸/膠體/鉛炭/三元 鋰/磷酸鐵鋰等類型）、光伏支架、線纜，以及配電箱等。

二、離網(wǎng)系統(tǒng)設計時需要提供哪些參數(shù)？

1.負載用電設備的功率

2.負載的工作時間（ 可以參考電費單或者總瓦數(shù)）

3.是否需要考慮陰雨天天數(shù)（持續(xù)供電)

4.安裝地光照條件以及安裝的傾角

三、光伏儲能離網(wǎng)系統(tǒng)的原理

1.太陽能電池板將太陽光轉(zhuǎn)換為直流電

2.逆變器將直流電轉(zhuǎn)換為交流電，供家用電器在白天使用

3.光伏板產(chǎn)生的剩余電力用于給電池充電

4.電池中存儲的能量在夜間得到利用

5.當無法使用公共設施并且電池電量不足時，發(fā)電機會為電池充電和負載供電

I. Composition of off-grid photovoltaic system

Photovoltaic modules, off-grid inverters (including photovoltaic chargers/inverters), energy storage batteries (lead acid/colloid/lead carbon/ternary lithium/lithium iron phosphate, etc.), photovoltaic brackets, cables, and distribution boxes, etc.

The picture

2. What parameters should be provided in the design of off-grid system?

1. Load power of electrical equipment

2. Working time of the load (refer to the electricity bill or total wattage)

3. Whether to consider the rainy days (continuous power supply)

4. Lighting condition and Angle of installation

Iii. Principle of photovoltaic energy storage off-grid system

1. Solar panels convert sunlight into direct current

2. Inverter converts direct current into alternating current for household appliances to use during the day

3. The surplus electricity generated by the photovoltaic panels is used to charge the batteries

4. The energy stored in the battery is used at night

5. When public facilities cannot be used and the battery is low, the generator will charge the battery and power the load