The rated wind speed is related to the swept area of the impeller and the torque of the generator. It is generally determined based on algorithms and simulation software, and then a prototype is made based on the theoretical value. Generally speaking, when the rated power of the generator remains unchanged, Below, the larger the impeller diameter, the lower the rated wind speed, which means the sweep area is larger, and the smaller wind speed can allow the generator to reach full power
The wind energy utilization coefficient of the fan is represented by CP. In theory, CP will not exceed 0.593. The maximum power generation efficiency of current mainstream wind turbines (the highest utilization rate is around 10 meters/second) is generally around 0.45, while the seventh-level wind is 14-17 meters/second, which exceeds the troublesome wind speed of the wind turbine. Utilize The rate will start to decrease, around 0.2-0.4. The sweep area is related to the impeller diameter. The current mainstream impeller diameters are 70, 80, 93, 105, 115 meters, etc. You can calculate the corresponding sweep area.
In addition, the current mainstream wind turbine power is 1500, 2000, 3000, 5000, 6000KW, etc., of which 1500 and 2000 account for 80%.