The rotor system converts the wind’s kinetic energy into a rotation, and so should be seen as the engine that finally drives the whole turbine. It is also the part of the turbine that is most exposed to all harsh weather conditions (rain, hail, lightning, hurricanes & typhoons), with extremely tight safety requirements.
The weight of the rotor assembly is critical, for several reasons.
Sub-systems within the Rotor
- Blade pitch bearings: Pitch bearing dimensions are similar as Yaw bearing dimensions, and so are loads.
- Blade pitch actuators can be either hydraulic or electrical.
|Wind Turbine Section||Application Examples|
|Blade Pitching||Pitch Slide Bearings|
|Pitch Roller Bearings|
|Blade Components||Blade Add-ons|
|Blade Protection (erosion, lightning)|
|Blade Spar Caps|