Back to results
US 2015/0147173 A1Published application
Methods and systems to shut down a wind turbine
AssigneeGeneral Electric Company
InventorPranav Agarwal
Life of this patent
Estimating the term…
Abstract
A wind turbine system is presented. The wind turbine system includes a wind turbine comprising a plurality of blades and a tower, and a processing subsystem configured to shut down the wind turbine by non-linearly pitching out the plurality of blades in the wind turbine towards a feather position at a pitch rate determined based upon a tower-fore-aft velocity of a top-portion of the tower during oscillations of the tower.
Claims19
A wind turbine system, comprising:
- a wind turbine comprising a plurality of blades and a tower;
- and
- a processing subsystem configured to shut down the wind turbine by non-linearly pitching out the plurality of blades in the wind turbine towards a feather position at a pitch rate determined based upon a tower-fore-aft velocity of a top-portion of the tower during oscillations of the tower.
A method to shut down a wind turbine, comprising:
- non-linearly pitching out a plurality of blades in the wind turbine towards a feather position at a pitch rate determined based upon a tower-fore-aft velocity of a top-portion of a tower in the wind turbine during oscillations of the tower.
A method to shut down a wind turbine, comprising:
- non-linearly pitching out a plurality of blades in the wind turbine towards a feather position at a pitch rate determined based upon a state of a top-portion of a tower during oscillations of the tower.
Dependencies are inferred from the claim text.