Modelling and design of a low speed flux reversal machine

Abstract EN

This paper is devoted to the electromagnetic design and the optimization of a 10 kW, 50 rpm direct drive Flux Reversal Machine, excited by NdFeB magnets located on the inner surface of the stator plots.

The optimization of the machine dimensions, focused on the maximization of the mass to torque ratio, is carried out by a genetic algorithm combined with the finite element method.

The electromagnetic characteristics of the optimized machine, including flux, back electromotive forces EMF, static torque,…etc., obtained by finite elements are then analyzed.

The results show that the machine presents good performances and can constitute an alternative to the direct drives at low speeds.