PM-assisted Synchronous Reluctance machines for light electric vehicle propulsion system-comparative analysis

The battery voltage in Electric or hybrid vehicles is switching from the classic 24 or 48V batteries to ones using 400V or higher. In this paper, two electric machines supplied with a 560V DC-link will be designed and optimized using a classic design approach and using a 120V DC-link supplied electric machine as reference. As the market for rare earth magnets is in decline, the proposed machine type is a Synchronous Reluctance Machine (SynRM) assisted with Ferrite magnets placed in the flux barriers. A comparison is performed between the two machine variants using the FEA method, in order to validate the performances of the machines.