The solar power generation system is composed of solar battery packs, solar controllers, and storage batteries (groups). If the output power is AC 220V or 110V, an inverter is also required. The functions of each part are: (1) Battery: generally lead-acid battery
, in small and micro systems, nickel-hydrogen battery, nickel-cadmium battery or lithium battery can also be used. Its function is to store the electrical energy generated by the solar panel when there is light, and then release it when needed. (2) Solar panels: Solar panels are the core part of the solar power generation system and the most valuable part of the solar power generation system. Its function is to convert the sun's radiation capacity into electric energy, or send it to the storage battery for storage, or drive the load to work. The quality and cost of solar panels will directly determine the quality and cost of the entire system. Wellsee monocrystalline silicon solar panels (3) Solar controller: The function of the solar controller is to control the working status of the entire system, and to protect the battery from overcharge and overdischarge. In places with large temperature differences, a qualified controller should also have the function of temperature compensation. Other additional functions such as light control switch and time control switch should be optional options of the controller. (4) Inverter: In many occasions, 220VAC, 110VAC AC power supply is required. Because the direct output of solar energy is generally 12VDC, 24VDC, 48VDC. In order to provide electrical energy to 220VAC electrical appliances, the DC power generated by the solar power generation system needs to be converted into AC power, so a DC-AC inverter is required. In some occasions, when multiple voltage loads are required, a DC-DC inverter is also used, such as converting 24VDC electric energy into 5VDC electric energy (note that it is not a simple step-down). The production process of crystalline silicon solar cells: crystalline silicon solar cells 'silicon' is one of the most abundant materials on our planet. Since scientists discovered the semiconductor properties of crystalline silicon in the 19th century, it has changed almost everything, even human thinking. At the end of the 20th century, 'silicon' can be seen everywhere in our lives. Crystalline silicon solar cells have been industrialized the fastest in the past 15 years. The production process can be roughly divided into five steps: a, purification process b, drawing process c, slicing process d, battery making process e, packaging process.
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