Wind farm wake control activation method
AssigneeVestas Wind Systems A/S
InventorsMahmood MIRZAEI, Jacob Deleuran GRUNNET
Life of this patent
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Abstract
The invention relates to a method for controlling a yaw offset of a plurality of wind turbines. The method uses a decision function which generates an activation parameter for determining if the yaw offset control of a specific wind turbine should be enabled or disabled. The decision function depends on two or more variables comprising a wind direction variable indicative of the wind direction of the specific wind turbine, and a wind variation variable defining at least a wind variation range where yaw offset control is disabled or enabled. Based on the decision function it is determined if a yaw offset should be added to the current yaw setting of the specific wind turbine.
Claims17
A method for controlling a yaw offset of a plurality of wind turbines (101), the method comprises:
- providing a decision function arranged for providing an activation parameter for a specific wind turbine of the plurality of wind turbines dependent on two or more variables, where the two or more variables comprise:
- a wind direction variable indicative of the wind direction of the specific wind turbine;
- and
- a wind variation variable defining at least a wind variation range where yaw offset control is disabled and/or a wind variation range where yaw offset control is enabled,
- enabling or disabling the yaw offset control of the specific wind turbine based on the activation parameter, wherein the enabled yaw offset control provides a yaw offset relative to a default yaw setting.
A wind turbine controller unit arranged for controlling a yaw offset of one or more wind turbines, the wind turbine controller unit comprises:
- a decision function arranged for providing an activation parameter for a specific wind turbine of the plurality of wind turbine dependent on two or more variables, where the two or more variables comprise:
- a wind direction variable indicative of the wind direction of the specific wind turbine;
- and
- a wind variation variable defining at least a wind variation range where yaw offset control is disabled and/or a wind variation range where yaw offset control is enabled,
- wherein the activation parameter is provided for enabling or disabling the yaw offset control of the specific wind turbine, where the enabled yaw offset control provides a yaw offset relative to a default yaw setting.
A computer program product comprising software code adapted to control a wind turbine when executed on a data processing system, the computer program product being adapted to perform an operation for controlling a yaw offset of the wind turbine, comprising:
- providing a decision function arranged for providing an activation parameter for the wind turbine of the plurality of wind turbines dependent on two or more variables, where the two or more variables comprise:
- a wind direction variable indicative of the wind direction of the wind turbine;
- and
- a wind variation variable defining at least a wind variation range where yaw offset control is disabled and/or a wind variation range where yaw offset control is enabled;
- and
- enabling or disabling the yaw offset control of the wind turbine based on the activation parameter, wherein the enabled yaw offset control provides a yaw offset relative to a default yaw setting.
Dependencies are inferred from the claim text.