Optimal adaptation of the wind rotor to the permanent magnets synchronous generator of a small passive wind turbine

This work deals with the problem of optimal design of a fully passive small wind turbine chain whose main components are the wind rotor and the generator. This involves optimizing the synchronous generator with permanent magnets, and secondly ensuring mutual adaptation between the wind rotor and the optimized generator, so that the assembly is more attractive and more sensitive to the conversion of wind energy. Thus, we are interested in maximizing the electromagnetic torque of the machine while minimizing the total cost of the active part of the machine. Then we adapted the characteristics of the wind rotor to those of the optimized generator. The originality of this work was to find, for a given performance generator, the radius of the sail according to the wind potential of the location. A bi-objective optimization based on the genetic algorithm allowed us to obtain good results. The analysis of these results shows that for an optimized generator there is a radius of the wing adapted to a given wind speed.