What Are The Classifications Of Solar Power Generation Systems?

1. Solar power system - solar power generation

Solar power generation is a form of power generation that does not require direct conversion of light energy into electricity through a thermal process. These include photovoltaic power generation, photochemical power generation, photoinduction power generation, and photobiological power generation. Photovoltaic power generation is a direct power generation method that uses solar-level semiconductor electronic devices to effectively absorb solar radiation energy and convert it into electrical energy, which is the mainstream of solar power generation today. The development of photochemistry has electrochemical photovoltaic cells, photoelectric solar cells, light Shu photovoltaic cells, and the actual application is photovoltaic cells.

Solar power generation system is mainly composed of solar cells, batteries, controllers and inverters. Among them, solar cells are the core part of solar power generation system, and the quality and cost of solar panels directly determine the quality and cost of the entire system. Solar cells are mainly divided into crystalline silicon cells and thin film cells. Electronics include monocrystalline silicon cells, polycrystalline silicon cells, mainly amorphous silicon solar cells, copper ingot solar cells, bromine solar cells.

The photoelectric conversion efficiency of monocrystalline silicon solar cells is about 15%, up to 23%, which is the highest photoelectric conversion efficiency in solar cells, but the manufacturing cost is high. The life of monocrystalline silicon solar cells is generally 15 years, and the length is 25 years. The photoelectric conversion efficiency of polycrystalline silicon solar cells is 14% to 16%, and the production cost is lower than that of monocrystalline silicon solar cells, so it has been greatly developed, but the life of polycrystalline silicon solar cells is shorter than that of monocrystalline silicon solar cells.

2. Solar power system - solar thermal power generation

The method of converting solar radiation energy into electrical energy through water or other working medium and device is called solar power generation. There are two ways to do this: first convert solar energy into heat, and then convert heat into electricity. One is to convert solar energy directly into electricity. For example, the development of temperature differences in semiconductors or metal materials, the development of thermoelectric and thermoelectric ions in vacuum devices, the thermoelectric conversion of alkali metals, and the development of magnetic fluids. Another way is to generate electricity by turning on solar energy (such as a steam turbine) to drive a generator. This is similar to existing thermal power generation, but its heat comes not from fuel but from solar energy. There are many types of solar power generation, mainly tower system, trough system, disk system, solar cell, solar tower thermal power generation and so on five kinds. The first three are concentrated solar power systems, and the last two are non-concentrated.