1. The length of the main shaft of the wind turbine affects the mechanical strength of the wind turbine. Increasing the length of the main shaft will reduce the diameter of the main shaft and increase the bending force.
2. The length of the main shaft also affects the speed range of the wind turbine. When the main shaft is long, the speed range increases and it has better adaptability.
3. The length of the main shaft also affects power generation, affecting copper loss, iron loss, mechanical loss and other parameters of the generator.