As wind is not a stable source of energy, the speed of the blades is closely related to the magnitude of the wind force, the magnitude of the working torque and the shape of the blades. Generally, in order to obtain a relatively stable rotation speed, a variable ratio transmission device is often used to obtain a relatively constant rotation speed to drive the generator.
In order to achieve relatively high power generation efficiency, wind turbines often use permanent generators with neodymium, iron and boron magnets with high magnetic energy. If it is not used for grid-connected electricity production to benefit from state subsidies, it is used to charge batteries in areas where power supply is difficult (such as relay stations of signals).
Calculating the number of turns in a generator is no different from calculating the number of turns in aordinary permanent magnet generator.
To calculate the number of revolutions, we need to understand the following quantities: the speed of the generator n, the output voltage V, the number of pole pairs of the motor P and the maximum magnetic flux Φ passing through the coil. Suppose the number of revolutions required by the generator is x.
Then V=2πnPΦx/√2=4.44nPΦx
That is to say x=4.44nPΦ/V