Advanced Non-Permanent-Magnet Reluctance Machines for Traction Applications: A Review

Permanent magnet machines have been widely adopted in electric vehicle traction systems. However, they face several challenges such as price fluctuation and availability of rare-earth magnets. Reluctance machines are attractive candidates to eliminate PMs. This paper presents a review of advanced non-PM reluctance machines for traction applications, including synchronous reluctance machines, switched reluctance machines, and newly developed variable flux reluctance machines.