Function
Auxiliary systems may be incorporated to lubricate bearings and provide condition monitoring and advanced control inputs.
What it costs*
The rotor auxiliary systems cost varies significantly with rotor design.
Who supplies them
Automatic lubrication systems: Lincoln and SKF.
Key facts
All offshore wind turbines have automatic lubricated Blade bearings [T2.5]. A central lubrication pump connected to a metering distribution system provides a consistent volume of grease to ports around the circumference of the bearing each day. Grease purged from the system is collected from exit ports to avoid over pressurising seals.
Turbines also have blade load measurement as an advanced control input, facilitating reduction in turbine loading, normally at the expense of extra pitch system duty and blade bearing loading.
Lighting and other maintenance support features are also provided in the hub.
What’s in it
- Automatic lubrication system
- Blade load measurement system
- Maintenance support features