The uses of small windmills include power generation, viewing, publicity, etc.
1. Power generation: Wind energy is a renewable energy source. Wind energy is used to drive the windmill blades to rotate, and then the wind energy is converted into electrical energy through speed increasers and other devices.
2. Appreciation: The small windmill can rotate under the action of the wind, with a beautiful appearance and ornamental value.
3. Publicity: Small windmills can be used as advertising tools to promote related products or brands.
Principle of power generation
Convert the kinetic energy of the wind into mechanical kinetic energy, and then convert the mechanical energy into electrical kinetic energy. This is wind power generation. The principle of wind power generation is to use wind power to drive the windmill blades to rotate, and then use a speed increaser to increase the speed of rotation to prompt the generator to generate electricity.
According to current windmill technology, power generation can begin at a breeze speed of approximately three meters per second (the degree of breeze). Wind power is becoming a craze around the world because it does not require the use of fuel and does not produce radiation or air pollution.
Due to the unstable air volume, the wind turbine outputs alternating current of 13 to 25V, which must be rectified by the charger, and then the battery is charged, so that the electrical energy generated by the wind turbine is converted into chemical energy. . Then use an inverter power supply with a protection circuit to convert the chemical energy in the battery into AC 220V mains power to ensure stable use.
Extended information:
Wind turbine classification:
1. Horizontal axis wind turbine, the rotation axis of the wind wheel is parallel to the direction of the wind;
2. Vertical axis wind turbine, the rotation axis of the wind wheel is perpendicular to the ground or the direction of the air flow.
Advantages:
1. Clean and good environmental benefits;
2. Renewable and never exhausted;
3. Infrastructure The cycle is short and can be constructed on land or at sea;
4. The installed capacity is flexible and the operation and maintenance costs are low.
Baidu Encyclopedia-Wind Power