Urgent: What are the basic methods of solar power generation at present? Analyze your own characteristics! !

The solar power generation system consists of a solar battery pack, a solar controller and a storage battery (bag). If the output power supply is AC 220V or 1 10V, an inverter is needed. The function of each part is:

(1) Solar panels: Solar panels are the core and most valuable part of solar power generation system. Its function is to convert the radiation ability of the sun into electric energy, or send it to the storage battery for storage, or push the load to work. The quality and cost of solar panels will directly determine the quality and cost of the whole system;

(2) Solar controller: The function of the solar controller is to control the working state of the whole system and protect the battery from overcharge and overdischarge. In places with large temperature difference, qualified controllers should also have temperature compensation function. Other additional functions, such as light control switch and time control switch, should be optional for the controller;

(3) Battery: generally lead-acid battery. In small and micro systems, nickel-hydrogen batteries, nickel-cadmium batteries or lithium batteries can also be used. Its function is to store the electric energy generated by solar panels when there is light, and then release it when needed.

(4) Inverter: 220VAC, 1 10VAC AC power supply is required in many occasions. Because the direct output of solar energy is generally 12VDC, 24VDC and 48VDC. In order to provide electrical energy for 220VAC appliances, DC energy generated by solar power generation system needs to be converted into AC energy, so DC- AC inverter is needed. In some cases, DC-DC inverter is also used when loads with multiple voltages are needed, such as converting 24VDC to 5VDC (note that it is not a simple step-down).

The design of solar power generation system needs to consider the following factors:

Q 1。 Where is the solar power generation system used? What is the solar radiation situation in this area?

Q2。 What is the load power of the system?

Q3。 What is the output voltage of the system, DC or AC?

Q4。 How many hours does the system need to work every day?

Q5。 How many days does the system need continuous power supply in rainy days without sunshine?

Q6。 What is the load, pure resistance, capacitance or inductance, and what is the starting current?

Q7。 Quantity required by the system.