Torque ripple reduction of wound rotor synchronous motor using rotor slits

This paper treats the method for reduction of torque ripple in wound rotor synchronous motor (WRSM) which is one of the alternative solution to Interior permanent magnet synchronous motor (IPMSM). The main reason for the torque ripple is mainly generated by the saturation of magnetic flux on only one side of pole shoes. Therefore, we propose a way to reduce the torque ripple while maintaining the average torque by disperse the flux evenly using rotor slits. We plan to optimize the shape of rotor slits by response surface methodology (RSM) and validate it through finite element method (FEM).