Wind power generates several degrees of electricity in one lap.

The blade speed of the common 1.5 MW wind turbine is 1 rpm to 19-30 rpm, and the blade speed is not high, but the gear box inside the generator can increase the speed of the high-speed shaft to 50 times that of the low-speed shaft, that is, 1500 rpm. Calculated by the power generation of wind turbine 1 hour with 1500 degrees, the windmill can generate 1 degree of electricity when it rotates.

Specifically, the wind energy utilization coefficient reflects the degree to which the wind turbine absorbs energy from natural wind energy, and the data is generally given by the manufacturer who designed the wind turbine. If calculated according to Bates limit value theory, it will be found that the maximum wind energy utilization coefficient of ideal wind turbine is about 0.593.

The energy source of wind turbine prime mover is the "kinetic energy" of stroke in nature.

Therefore, it is also called clean energy. However, as we all know, the wind has a strange temper, which leads to strong variability and uncontrollable wind speed, and finally the wind turbine is disturbed.

Under the operation of various winds, the situation of wind power generation will be different, but the actual useful power it can obtain can be calculated by the formula "P = 1/2ρR 3 v3 Cp", where ρ represents the air density, r represents the rotor radius, v represents the airflow speed, and Cp represents the wind energy utilization coefficient.