Method for controlling a wind turbine during yaw operation
AssigneeGE Vernova Renovables Espana, S.L.
InventorsMatthias Volmer, Till Hoffmann, Diego Navarro, Ketan Daniel Tigga, Lothar Hendus
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Abstract
The present disclosure relates to methods (100, 200, 300) for controlling a wind turbine (10) during a yaw operation. The present disclosure further relates to control systems (92) for wind turbines and to wind turbines (10). A method for operating a wind turbine (10) during yaw operation comprises operating one or more yaw drives (35) to rotate the nacelle (16) with respect to the tower (15). In addition, the method comprises predicting an end of the yaw operation and, in response to predicting an end of the yaw operation, actuating a hydraulic brake (94) before the predicted end.
Claims15
A method for controlling a wind turbine during a yaw operation, the wind turbine including a nacelle, a tower, and a yaw system that rotates the nacelle relative to the tower about to a longitudinal axis of the tower, the yaw system including a hydraulic brake and one or more yaw drives, the method comprising:
- operating the one or more yaw drives at a first operational state in a yaw operation to rotate the nacelle with respect to the tower;
- predicting an end of the yaw operation when the one or more yaw drives are stopped;
- in response to the predicted end of the yaw operation, actuating the hydraulic brake before the predicted end of the yaw operation so that a predetermined braking moment of the hydraulic brake is achieved at or before the predicted end of the yaw operation;
- and
- maintaining the one or more yaw drives at the first operational state until the predicted end of the yaw operation.
Dependencies are inferred from the claim text.