Abstract: The invention relates to a system for evaluating the efficiency of a wind turbine (3), with a control system comprising means (11, 15) which are used to measure meteorological parameters M1, M2 and are respectively arranged in the wind turbine (3) and in a meteorological tower (5), and means (13) for measuring the orientation ? of the wind turbine and the power Pr generated by same. The system according to the invention comprises a computerised unit (21) which is connected to said measuring means (11, 13, 15) and provided with a first calculating module (23) designed to obtain a characteristic power Pc as a function of said parameters from the data obtained during a first operating step, and a second calculating module (25) designed to obtain the mean deviation Dm between the power Pr actually generated and the characteristic power Pc according to the function obtained by the first calculating means (23) in the set of at least one series of data.

Abstract: The invention relates to an automatic method for controlling a high-frequency inductive coupling power transfer system, which maintains the transferred power at a load equal to the nominal load with misalignments of up to 99% of the area of the secondary, in which the supply voltage and frequency of the system are controlled using a closed-loop control system in order to regulate the misalignments and the variation in the distance to the secondary and, in this way, transfer the nominal power.