Offshore wind power plant designed to reduce fatigue load of wind turbine
AssigneeKorea Institute of Ocean Science & Technology
InventorsKey Yong Hong, Kyong Hwan Kim, Se Wan Park, Kang Su Lee, Jong Su Choi, Sang Lee
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Abstract
An offshore wind power plant designed to reduce a fatigue load of a wind turbine includes an offshore structure, a plurality of wind turbines which is installed above the offshore structure to be spaced apart from each other with a predetermined distance and is supplied with a power through wind to produce electrical energy; and a turbine controller which controls at least one of a pitch movement and a yaw movement for the plurality of wind turbines.
Claims6
An offshore wind power plant designed to reduce a fatigue load of a wind turbine, comprising:
- an offshore structure comprising a first stage and a second stage configured to rotate with respect to the first stage,
- a plurality of wind turbines installed above the second stage of the offshore structure to be spaced apart from each other with a predetermined distance and configured to produce electrical energy based on wind power;
- and
- a turbine controller configured to control a pitch movement of at least one blade of each of the plurality of wind turbines,
- wherein the plurality of wind turbines include:
- a first wind turbine installed at a front side above the offshore structure;
- and
- a second wind turbine installed at a rear side of the first wind turbine, and
- wherein the turbine controller is configured to independently control a blade pitch angle of the first wind turbine and a blade pitch angle of the second wind turbine to operate the first wind turbine and the second wind turbine in a first operation mode and a second operation mode,
- wherein, in the first operation mode, the turbine controller is configured to:
- maintain the blade pitch angle of the second wind turbine, and
- adjust the blade pitch angle of the first wind turbine to be inclined by a first predetermined angle,
- wherein, in the second operation mode, the turbine controller is configured to:
- maintain the blade pitch angle of the first wind turbine, and
- adjust the blade pitch angle of the second wind turbine to be inclined by a second predetermined angle,
- wherein each of the first and second predetermined angles is in a range of 3 degrees to 6 degrees, and
- wherein the plurality of wind turbines are spaced apart from each other in at least one of a traverse direction or a longitudinal direction.
Dependencies are inferred from the claim text.