Control system for a floating wind turbine structure
AssigneeHywind AS
InventorsFinn Gunnar Nielsen, Bjørn Skaare
Life of this patent
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Abstract
A method of controlling a turbine of a floating wind turbine structure to reduce fatigue of moorings of the floating wind turbine structure includes curtailing the turbine based on a pitching motion of the floating wind turbine structure and on a wind direction at the floating wind turbine structure relative to an orientation of the moorings of the floating wind turbine structure. Optionally, the curtailment may be further based on a degree of displacement of the floating wind turbine structure from a reference location.
Claims24
A method of controlling a turbine of a floating wind turbine structure to reduce fatigue of moorings of the floating wind turbine structure, the method comprising:
- determining a motion of the floating wind turbine structure and a wind direction at the floating wind turbine structure;
- and
- curtailing the turbine based on the determined motion of the floating wind turbine structure and the determined wind direction at the floating wind turbine structure relative to directions in which the moorings extend away from the floating wind turbine structure,
- wherein curtailing the turbine comprises reducing a power output of the turbine, and
- wherein a wind-direction-based component of the curtailment has a higher value when wind approaches directly over one of the moorings and a lower value when wind approaches directly between two of the moorings.
Dependencies are inferred from the claim text.