Passive wind energy conversion system association of a direct-driven synchronous motor with vernier effect and a diode rectifier

The increase of the performances of wind turbine systems passes through the removal of the speed-increasing gear which is generally located between the blades and the alternator and thus the direct drive of this last. In this article we will show that the association of a direct-driven synchronous motor with Vernier effect and a diode rectifier is possible and makes it possible to achieve interesting objectives of costs and performances. We will present the studied electric system, the characteristics of the vertical axis wind turbine which drive the motor, then we will comment the results obtained in the study through simulations of the association of the motor with a diode rectifier. These results are perfectly in agreement with the measurements taken on the system studied at the laboratory.