Power production of wind turbines
AssigneeVestas Wind Systems A/S
InventorsJacob Krogh Kristoffersen, Jesper Sandberg Thomsen
Life of this patent
Estimating the term…
Abstract
Embodiments of the invention generally relate to wind turbine generators, and more specifically to improving power production in wind turbine generators. A rotor plane of the wind turbine may be divided into a plurality of sections. A characteristic of wind associated with each section may be determined. An optimal pitch angle may be determined for each section based on the associated wind characteristic. A pitch controller may adjust the pitch angle of a blade to the optimal pitch angle as the blade sweeps through the section.
Claims15
A method for improving power production of a wind turbine comprising:
- dividing a rotor plane into a plurality of sections;
- for each section, determining a characteristic of wind associated with the section;
- for each section, determining an optimal pitch angle based on the determined characteristic of wind of the section;
- and
- adjusting a pitch angle of a blade of the wind turbine to the optimal pitch angle of each section as the blade sweeps through the section.
A pitch controller of a wind turbine, wherein the pitch controller is configured to:
- divide a rotor plane into a plurality of sections;
- for each section, determine a characteristic of wind associated with the section;
- for each section, determine an optimal pitch angle based on the determined characteristic of wind of the section;
- and
- adjust a pitch angle of a blade of the wind turbine to the optimal pitch angle of each section as the blade sweeps through the section.
A wind turbine comprising:
- a rotor, wherein the rotor plane is divided into a plurality of predefined sections;
- an azimuth angle sensor configured to determine a position of each blade in the rotor plane;
- and
- a pitch controller configured to:
- for each section, determine a characteristic of wind associated with the section;
- for each section, determine an optimal pitch angle based on the determined characteristic of wind of the section;
- and
- adjust a pitch angle of a blade of the wind turbine to the optimal pitch angle of each section as the blade sweeps through the section.
Dependencies are inferred from the claim text.