The functions of wind are as follows:
1. As a natural energy source, wind can exchange warm and cold air. Wind is now used to pump water and process food, and windmills can also be used to generate electricity.
2. It can complete the water cycle on the earth, mix and balance heat and water vapor, and regulate temperature and humidity.
3. Wind transports and exchanges energy in the air, which can promote the growth of crops.
4. Wind can spread plant pollen and seeds, helping plants to pollinate and reproduce.
Wind is a natural phenomenon caused by air movement, which is caused by solar radiation heat. Sunlight shines on the surface of the earth, causing the surface temperature to rise. The air on the surface expands due to heat and becomes lighter and rises. After the hot air rises, low-temperature cold air flows in laterally. The rising air gradually cools and becomes heavier and falls. The higher surface temperature heats the air and causes it to rise. This flow of air creates wind.
According to whether the propeller is variable: fixed propeller: fixed propeller, passive yaw; variable pitch: variable propeller, active yaw; classified by blade: two blades, three blades, multi-blade ; According to motor type: permanent magnet direct drive wind turbine, asynchronous double-fed wind turbine; according to axis direction: horizontal axis, vertical axis; according to power: micro, small, medium, large, and by region: offshore Type, land type.