Among all wind power generators, the amount of electrical energy generated by each rotation of the wind power generator varies depending on the power of the wind power generator.
For example, the most common 2MW direct drive wind power generator, when the wind power is sufficient and stable, can generate 2,000 degrees of electricity every 60 minutes, and each rotation of the fan blades requires 3.5 seconds. , 60 minutes, is equal to 3,600 seconds, so the electricity generated by the generator per second is 0.56 kilowatt hours. Then, the electricity generated by the wind power generator fan for each rotation is 0.56 × 3.5 seconds, or 1.94 kilowatt hours. .
Detailed information
Principle of generator
The principle of wind power generation is to use wind energy to turn the blades of the wind turbine. , Thenthrough the gear machine increases the rotation speed to induce the generator to produce electricity. According to current wind turbine technology, electricity production can start at a breeze speed of around three meters per second (the breeze level).
Due to the unstable air volume, the wind turbine produces 13-25V alternating current, which needs to 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 with a protection circuit to convert the chemical energy of the battery into AC 220V mains power to ensure stable use.
Wind power generates approximately 0.1 kilowatt hours of electricity per revolution.
Wind power generation: At rated speed, a 100 kW wind turbine generates 0.1 kWh of electricity per cycle. When wind energy is sufficientt stable, a 2MW direct drive wind power generator can do it. can generate 2000 degrees of electricity every 60 minutes. Among them, each rotation of the fan blade takes 3.5 seconds. Wind turbines from 50 W to 300 W are 12 V, and there are 24 V wind turbines in the range of 300 W to 800 W.
A wind turbine is an electrical device that converts wind energy in mechanical work. The mechanical work causes the rotor to rotate and ultimately produces alternating current. Its operating principle is relatively simple. It uses the sun as heat. source and atmosphere as operating principle. The thermal energy from the environment is used by the generator. As an energy source replacing human and animal energy, it plays an important role in developing productivity. Wind energy production often poses no fuel problems and does not produce air pollution.ique.
Disadvantages of wind energy
1. Instability: Instability and unpredictability of wind speed is a major challenge for wind energy. Changes in wind speed will cause fluctuations in electricity generation, which will affect the stability of the power grid. In addition, the seasonality of wind speed and geographic location also affect the efficiency and scale of wind power generation.
2. High construction and maintenance costs: Although wind power is a type of renewable energy, its construction and maintenance costs remain high. Wind power generation requires equipment such as large generators and towers, which are expensive to manufacture and install. Additionally, since wind energy equipment operates in harsh environments and requires frequent maintenance and repairs, whichalso increases its operating costs.
3. Geographic Location Restrictions: Wind power generation requires sufficient air flow and appropriate wind speed, so choosing its geographic location is very important. A suitable geographic location can improve the efficiency and scale of wind power generation, but it is also limited by geographic location. For example, it is difficult to establish wind power plants in mountainous areas, oceans and other areas.
The above content refers to Baidu-Wind Energy Encyclopedia