Patent ID: 8604633

Claim:
A system for the evaluation and control of the output of at least one wind turbine ( 3 ) located in a wind farm ( 1 ), the wind turbine ( 3 ) having a system for the control of its components which includes some first means of measurement ( 11 ) of some meteorological parameters M 1 situated in the wind turbine ( 3 ) and some second means of measurement ( 13 ) of the direction of orientation β of the wind turbine ( 3 ) and the power Pr actually produced by the wind turbine ( 3 ), the wind farm ( 1 ) having some third means of measurement ( 15 ) of some meteorological parameters M 2 located in a meteorological tower ( 5 ) situated in the same wind farm ( 1 ), characterised because it consists of a computerised unit ( 21 ) connected to the above-mentioned first, second and third means of measurement ( 11 , 13 , 15 ) which include: a) a first calculation module ( 23 ) which obtains the characteristic power Pc of the wind turbine ( 3 ) as a function of at least the meteorological parameters M 1 and M 2 and the direction of orientation β of the wind turbine ( 3 ), from the data provided periodically by the first, second and third means of measurement ( 11 , 13 , 15 ) during a first stage of operation of the wind turbine ( 3 ); b) a second calculation module ( 25 ) which from the data provided periodically by the above-mentioned first, second and third means of measurement ( 11 , 13 , 15 ) during the normal operation of the wind turbine ( 3 ) obtains the mean deviation Dm between the power Pr actually produced by the wind turbine ( 3 ) and the characteristic power Pc corresponding to the values of the parameters M 1 and M 2 and the direction of orientation β of the wind turbine ( 3 ) provided jointly with the value of the power Pr, applying the function obtained with the first calculation module ( 23 ), in a set of one or more series of data corresponding to a predetermined number of periods.