Wind turbine control and monitoring method using a wind speed estimation based on a LIDAR sensor
AssigneeIfp Energies Nouvelles
InventorsBenoit Bayon, Jonathan Chauvin
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Abstract
The invention is a method for controlling and/or monitoring a wind turbine 1 equipped with a LIDAR sensor 2. Control and/or monitoring provides an estimation of the wind speed at the rotor obtained an estimator and a LIDAR sensor 2. The estimator of the wind speed at the rotor is constructed from a representation of the wind, a model of the LIDAR sensor and a model of wind propagation.
Claims27
A method for at least one of controlling and monitoring a wind turbine equipped with a LIDAR sensor performing a measurement of the wind at a point located upstream from the wind turbine, comprising:
- a) acquiring a sensor signal corresponding to the measurement performed by the LIDAR sensor;
- b) constructing an estimator for estimating wind speed at the rotor of the turbine from processing the sensor signal using a mathematical representation of the wind, a model of the LIDAR sensor and a model of wind propagation which relates the sensor signal to the wind speed at the rotor;
- c) estimating the wind speed at the rotor of the turbine by applying the sensor signal to the estimator which converts the sensor signal at the point upstream from the rotor into an output signal expressing an estimation of wind speed at a plane of the rotor;
- and
- d) at least one of controlling and monitoring the wind turbine in response to the estimation of the wind speed at the plane of the rotor.
An offshore wind turbine equipped with a LIDAR sensor including a measuring point located upstream from the turbine, and a control implementing a wind turbine control method comprising:
- a) acquiring a sensor signal corresponding to the measurement performed by the LIDAR sensor;
- b) constructing an estimator for estimating wind speed at the rotor of the turbine from processing the sensor signal using a mathematical representation of the wind, a model of the LIDAR sensor and a model of wind propagation which relates the sensor signal to the wind speed at the rotor;
- c) estimating the wind speed at the rotor of the turbine by applying the sensor signal to the estimator which converts the sensor signal at the point upstream from the rotor into an output signal expressing an estimation of wind speed at a plane of the rotor;
- and
- d) at least one of controlling and monitoring the wind turbine in response to the estimation of the wind speed at the plane of the rotor.
Dependencies are inferred from the claim text.