How the Solar Module generates power.
2022-10-21
The sun shines on the semiconductor P-N junction, forming a new hole-electron pair. Under the action of the electric field of the P-N junction, the hole flows from the p region to the n region, and the electron flows from the n region to the p region. When the circuit is connected, the current is formed. That's how photoelectric effect solar cells work.
Solar power generation There are two types of solar power generation, one is the light-heat-electricity conversion mode, the other is the direct light-electricity conversion mode.
(1) The light-heat-electricity conversion method uses the thermal energy generated by solar radiation to generate electricity. Generally, the absorbed thermal energy is converted into the steam of the working medium by the solar collector, and then the steam turbine is driven to generate electricity. The former process is the light-heat conversion process; The latter process is the heat - electricity conversion process.
Solar power generation There are two types of solar power generation, one is the light-heat-electricity conversion mode, the other is the direct light-electricity conversion mode.
(1) The light-heat-electricity conversion method uses the thermal energy generated by solar radiation to generate electricity. Generally, the absorbed thermal energy is converted into the steam of the working medium by the solar collector, and then the steam turbine is driven to generate electricity. The former process is the light-heat conversion process; The latter process is the heat - electricity conversion process.
(2) The photoelectric effect is used to convert the solar radiation energy directly into electric energy. The basic device of the photoelectric conversion is the solar cell. Solar cell is a device that directly converts solar light energy into electric energy due to photogeneration volt effect. It is a semiconductor photodiode. When the sun shines on the photodiode, the photodiode will turn the solar light energy into electric energy and generate current. When many cells are connected in series or in parallel, a square array of solar cells with relatively large output power can be formed.
