Back to results
US 11,761,425 B2Granted
Turbulence intensity estimation
AssigneeGeneral Electric Renovables Espana, S.L.
InventorsSamuel Davoust, Srinivas Kandasamy, Sanketh Bhat
Life of this patent
Estimating the term…
Abstract
A method to operate a wind turbine is provided, the method including determining a correction model associated with the wind turbine, determining a corrected turbulence intensity parameter associated with the wind turbine based on the correction model, and operating the wind turbine based on the corrected turbulence intensity parameter.
Claims14
A method to operate a wind turbine having a rotor with a plurality of blades connected thereto, the rotor connected to a generator, the method comprising:
- determining a correction model associated with the wind turbine;
- determining a corrected turbulence intensity parameter associated with the wind turbine based on the correction model and a first plurality of wind data corresponding to a received rotor effective wind speed data;
- operating the wind turbine based on the corrected turbulence intensity parameter;
- and
- wherein the received rotor effective wind speed is a spatial average of a wind field over an entire plane of the rotor and is determined by a model-based controller based on power output of the generator, rotor speed, and pitch of the blades.
2 more elements
A method to operate a wind turbine, the method comprising:
- determining a correction model associated with the wind turbine;
- determining a corrected turbulence intensity parameter associated with the wind turbine based on the correction model;
- operating the wind turbine based on the corrected turbulence intensity parameter;
- wherein determining the correction model comprises:
- receiving a first and a second plurality of wind data;
- processing the first and the second plurality of wind data to determine a first and a second set of estimates respectively, each set of estimates including at least one of:
- a normalized plurality of wind data, a power spectral density of the plurality of wind data, a turbulence intensity parameter, or a turbulence length scale parameter;
- and
- calibrating the correction model based at least on one from the first set of estimates and at least one from the second set of estimates;
- wherein determining the corrected turbulence intensity comprises:
- receiving a third plurality of wind data;
- and
- processing the third plurality of wind data to determine a third set of estimates, the third set of estimates including an uncorrected turbulence intensity parameter, and at least one of:
- a normalised plurality of wind data, a power spectrum, and a turbulence length scale parameter;
- calibrating a site correction model based on at least the second plurality of wind data and the corrected turbulence intensity parameter;
- and
- determining an adjusted turbulence intensity parameter based on a fourth plurality of wind data and the site correction model.
14 more elements
Dependencies are inferred from the claim text.