solar power generation

Solar Power Generation - Customization of Science Museum Exhibitions, Campus Community Science Popularization Equipment, Source Manufacturer of Science Exhibitions Description and Introduction of Scientific Principles:

The exhibition items consist of two parts: the principle of solar power generation and the types of solar panels, showcasing the principles of solar power generation. Solar energy is the radiation released by high-temperature nuclear fusion reactions inside the sun, and is a clean and sustainable natural energy source. There are two main ways to generate electricity using solar energy. One is to convert solar energy into heat energy, heat the working fluid to produce steam, and drive the steam turbine generator to generate electricity; Another method is to use the photovoltaic effect of special semiconductor materials to directly convert solar energy into electrical energy. The device for energy conversion is called a solar cell, also known as a solar cell or photovoltaic cell. The main principle of solar cell power generation is the photoelectric effect of semiconductors, also known as the photovoltaic effect. The photovoltaic effect of PN junction is widely used. When an N-type semiconductor that conducts electrons and a P-type semiconductor that conducts holes are combined, a built-in electric field is formed at the interface due to the mutual diffusion of electrons and holes, known as a PN junction. After the light reaches the PN junction, if the energy of the photon is greater than the bandgap width, electrons are excited from the valence band to the conduction band, producing electron hole pairs. They are separated under the electric field of reverse biased PN junction, and a current is generated when an external circuit is connected at both ends of the PN junction. In addition, the photovoltaic effect of PN junction can also be used to produce photodetectors. In vast areas without power grids, solar power generation can conveniently provide lighting and daily electricity for users, including solar lights, solar fans, solar cars, etc; Solar power generation can also complement regional power grid integration.

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