Design of a Permanent Magnet assisted Synchronous Reluctance motor using Ferrites

This paper presents a design transformation of a NdFeB permanent magnet assisted synchronous reluctance motor in order to propose a high-performance alternative solution using ferrites instead. Ferrite magnets are well known for their low cost and for their stable price, however they are less performant than rare earth magnets. In order to increase the Ferrite-Motor performances, more ferrite magnets have been used in the new design compared to its NdFeB-Motor counterpart. Particular effort was made in order to reduce torque ripples and mechanical stress to acceptable limits. The Ferrite-Motor appears to be a good solution to be adopted in future powertrains having relatively good performances at lower costs.