Wind turbine, yaw control device, and operation control method
AssigneeMitsubishi Heavy Industries, Ltd.
InventorMitsuya BABA
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Abstract
A wind turbine includes: a wind turbine rotor; a nacelle supporting the wind turbine rotor rotatably; a yaw rotation part configured to rotate the nacelle; and a yaw control part configured to operate the yaw rotation part in a yaw rewind mode of rotating the nacelle in such a direction that a yaw angle changes toward zero, if an absolute value of the yaw angle exceeds a threshold which is variable in accordance with a wind-velocity parameter representing a magnitude of a wind velocity. The threshold increases with an increase in the wind-velocity parameter.
Claims15
A wind turbine comprising:
- a wind turbine rotor;
- a nacelle supporting the wind turbine rotor rotatably;
- a yaw rotation part configured to rotate the nacelle;
- and
- a yaw control part configured to operate the yaw rotation part in a yaw rewind mode of rotating the nacelle in such a direction that a yaw angle changes toward zero, if an absolute value of the yaw angle exceeds a threshold which is variable in accordance with a wind-velocity parameter representing a magnitude of a wind velocity,
- wherein the threshold increases with an increase in the wind-velocity parameter.
A method of controlling operation of a wind turbine which comprises a wind turbine rotor, a nacelle supporting the wind turbine rotor rotatably, and a yaw rotation part configured to rotate the nacelle, the method comprising:
- a step of operating the yaw rotation part in a yaw rewind mode of rotating the nacelle in such a direction that a yaw angle changes toward zero, if an absolute value of the yaw angle exceeds a threshold which is variable in accordance with a wind-velocity parameter representing a magnitude of a wind velocity,
- wherein the threshold increases with an increase in the wind-velocity parameter.
Dependencies are inferred from the claim text.