Design methodology for high‐speed synchronous reluctance machines

This study presents two design methodologies for high‐speed synchronous reluctance (REL) machines. The interest for high‐speed drives comes from the request for compactness and high efficiency. The synchronous REL motors have been widely studied for several applications, but a coherent design procedure for high speed has not been proposed in the literature. The study proposes some analytical procedures to get an initial design. Then the rotor geometry optimisation through a differential evolution algorithm is described. Finally, a design example is given and thoroughly analysed using these two approaches.