The photovoltaic solar power generation system is composed of solar cells, solar controllers and batteries (groups). If the output power supply is AC 220V or 110V, an inverter is also required.
1. Solar panel: solar panel is the core part of solar power generation system and the most valuable part of solar power generation system. Its function is to convert the radiation capacity of the sun into electric energy, or send it to the battery for storage, or promote the load to work.
2. Solar controller: the function of solar controller is to control the working state of the whole system and protect the battery from overcharge and over discharge. In places with large temperature difference, qualified controllers should also have the function of temperature compensation. Other additional functions such as optical control switch and time control switch should be optional to the controller;
3. Battery: generally lead-acid battery, nickel hydrogen battery, nickel cadmium battery or lithium battery can also be used in small and micro systems. Its function is to store the electric energy emitted by the solar panel when there is light, and release it when necessary.
4. Inverter: the direct output of solar energy is generally 12VDC, 24VDC, 48VDC. In order to provide power to 220VAC electrical appliances, it is necessary to convert the DC power generated by the solar power generation system into AC power, so DC-AC inverter is required.
