Wind turbine control method using an estimation of the incident wind speed
AssigneeIfp Energies Nouvelles
InventorsJonathan Chauvin, Ghizlane Hafidi-Rami Yahyaoui
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Abstract
The invention is a method for controlling a wind turbine to optimize the energy production with an estimation of the incident wind speed Vw being used to obtain an optimum control (COM). The estimation of wind speed M is achieved by accounting for the dynamics of the system from the measurement of rotor speed the torque imposed on the generator and of orientation of the turbine blades.
Claims26
A method for controlling a wind turbine, comprising a rotor to which at least one blade is attached and an electrical machine connected to the rotor, wherein pitch angle of the at least one blade and electrical recovery torque of the electrical machine are measured or determined, comprising:
- a) constructing a model of dynamics of the rotor using a principle of dynamics to describe the rotor, the model relating incident wind speed at the wind turbine to rotating speed of the rotor, the pitch angle of at least one blade and the electrical recovery torque;
- b) measuring the rotating speed of the rotor;
- c) determining an incident wind speed by using the model of dynamics of the rotor, of the measured rotating speed of the rotor, of the pitch angle of the at least one blade and of the electrical torque;
- and
- d) controlling the pitch angle of at least one blade and/or the electrical recovery torque as a function of the incident wind speed to optimize production of energy by the wind turbine.
Dependencies are inferred from the claim text.