Principle of solar power generation2020-01-15
The light-heat-movement-electricity conversion mode generates electricity by utilizing the thermal energy generated by the solar radiation. Generally, the solar collector converts the absorbed thermal energy into the steam of the working medium, and then drives the steam turbine to generate electricity.The first process is the light-heat conversion process;The latter process is the final conversion process from heat to power, which is the same as ordinary thermal power generation. The disadvantages of solar thermal power generation are low efficiency and high cost.
This method USES the photoelectric effect to convert solar radiation energy directly into electrical energy.A solar cell is a device that converts solar light energy directly into electrical energy due to the photogenic volt effect. It is a semiconductor photodiode. When the sun shines on the photodiode, the photodiode will convert the solar light energy into electrical energy and generate an electric current.When many batteries are connected in series or in parallel, they can become a solar cell array with relatively large output power.Solar cells are a promising new source of power, with the advantages of permanence, cleanliness and flexibility.Compared with thermal power generation, solar cells do not cause environmental pollution.