A new electromechanical concept for hybrid powertrains

Abstract

The paper is devoted to a finite element analysis based design of an electromagnetic system dedicated for hybrid propulsion systems. It consists of two concentric permanent magnet machines, yielding the so-called single stator dual rotor permanent magnet with an inner rotor, an outer rotor and a stator sandwiched between the two rotors. In order to decouple magnetically both machines, a non magnetic material ring is inserted between the two stators. Giving the small dimensions of the inner machine, special attention is focused upon its sizing.