Method of yawing a rotor of a wind turbine
AssigneeVestas Wind Systems A/S
InventorChris Spruce
Life of this patent
Estimating the term…
Abstract
A wind turbine (1) in which the yaw speed of a rotor (4) of the wind turbine (1) is increased, in a direction to reduce yaw error, from a first speed to a faster second speed when at least one of a yaw error threshold and a rate of change in yaw error threshold is exceeded. Yaw error is an amount an axis about which the rotor (4) is rotatable is offset from the wind direction to which the rotor (4) is exposed. As a result, the maximum loads that a wind turbine 1 should withstand may be reduced and lighter wind turbine components result.
Claims15
A method of yawing a rotor of a wind turbine, the method comprising:
- increasing a yaw speed of the rotor of the wind turbine, in a direction to reduce a yaw error, from a first speed to a faster second speed when at least one of a yaw error threshold and a rate of change in yaw error threshold is exceeded, the yaw error being an amount an axis about which the rotor is rotatable is offset from a wind direction to which the rotor is exposed.
A controller comprising:
- a processor;
- and
- a memory coupled to the processor and storing program code that, when executed by the processor, causes the controller to:
- increase a yaw speed of a rotor of a wind turbine, in a direction to reduce a yaw error, from a first speed to a faster second speed when at least one of a yaw error threshold and a rate of change in yaw error threshold is exceeded, the yaw error being an amount an axis about which the rotor is rotatable is offset from a wind direction to which the rotor is exposed.
A computer program product comprising:
- a non-transitory computer-readable medium;
- and
- program code stored on the non-transitory computer-readable medium that, when executed by a processor, causes the processor to:
- increase a yaw speed of a rotor of a wind turbine, in a direction to reduce a yaw error, from a first speed to a faster second speed when at least one of a yaw error threshold and a rate of change in yaw error threshold is exceeded, the yaw error being an amount an axis about which the rotor is rotatable is offset from a wind direction to which the rotor is exposed.
A wind turbine comprising:
- a rotor;
- and
- a controller including a processor and a memory coupled to the processor, the memory storing program code that, when executed by the processor, causes the controller to:
- increase a yaw speed of the rotor of the wind turbine, in a direction to reduce a yaw error, from a first speed to a faster second speed when at least one of a yaw error threshold and a rate of change in yaw error threshold is exceeded, the yaw error being an amount an axis about which the rotor is rotatable is offset from a wind direction to which the rotor is exposed.
A wind turbine comprising:
- a rotor;
- and
- a computer program product including:
- a non-transitory computer-readable medium, and
- program code stored on the non-transitory computer-readable medium that, when executed by a processor, causes the processor to:
- increase a yaw speed of the rotor of the wind turbine, in a direction to reduce a yaw error, from a first speed to a faster second speed when at least one of a yaw error threshold and a rate of change in yaw error threshold is exceeded, the yaw error being an amount an axis about which the rotor is rotatable is offset from a wind direction to which the rotor is exposed.
Dependencies are inferred from the claim text.