System and method for controlling a wind turbine
AssigneeGeneral Electric Renovables Espana, S.L.
InventorsJishnu Kavil Kambrath, Veena Padmarao, Kapil Jha, Arvind Kumar Tiwari
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Abstract
A system and method are provided for controlling a wind turbine. Accordingly, a controller of the wind turbine detects a transient grid event and generates a torque command via a drive-train-damper control module. The torque command is configured to establish a default damping level of a torsional vibration resulting from the transient grid event. The controller also determines at least one oscillation parameter relating to the torsional vibration and determines a target generator torque level based thereon. The target generator torque level corresponds to an increased level of damping the torsional vibration relative to the default damping level.
Claims20
A method for controlling a wind turbine coupled to a power grid, the wind turbine having a drivetrain comprising a rotor rotatably coupled to a generator via a slip coupling, the method comprising:
- detecting, via a controller, a first transient grid event;
- generating a torque command via a drive-train-damper control module of the controller in response to the first transient grid event, the torque command configured to establish a default damping level of a torsional vibration resulting from the first transient grid event;
- determining, via the controller, at least one oscillation parameter relating to the torsional vibration;
- determining, via the controller, a target generator torque level in response to the determination of the at least one oscillation parameter, the target generator torque level being a torque level corresponding to an increased damping level of the torsional vibration which is greater than the default damping level;
- and
- modifying the torque command with a torque modifier command generated via the controller so as to establish a torque of the generator at the target generator torque level, thereby developing the increased damping level.
A system for controlling a wind turbine, the system comprising:
- a generator rotatably coupled to a rotor via a slip coupling;
- and
- a controller communicatively coupled to the generator, the controller comprising at least one processor configured to perform a plurality of operations, the plurality of operations comprising:
- detecting a first transient grid event,
- generating a torque command via a drive-train-damper control module of the controller in response to the first transient grid event, the torque command configured to establish a default damping level of a torsional vibration resulting from the first transient grid event, determining at least one oscillation parameter relating to the torsional vibration,
- determining a target generator torque level in response to the determination of the at least one oscillation parameter, the target generator torque level being a torque level corresponding to an increased damping level of the torsional vibration which is greater than the default damping level, and
- modifying the torque command with a torque modifier command generated via the controller so as to establish a torque of the generator at the target generator torque level, thereby developing the increased damping level.
Dependencies are inferred from the claim text.