Novel rotor design optimization of Synchronous Reluctance Machine for low torque ripple

Torque ripple can be an important issue in Synchronous Reluctance Machine (SynRM) design, similar to the Induction Machine (IM). A novel, simple and systematic method for ripple reduction in SynRM (that can also be implemented for IPM and PMaSynRM) design is presented in this paper. The decoupling between stator and rotor structure during the torque ripple minimization is another goal. This can be achieved using a general method that minimizes the ripple independent of the stator structure, specially the slots number of the stator, and the number of barriers in the rotor or rotor slots number. Furthermore, it is shown that torque maximization and torque ripple minimization can be achieved independently in the SynRM design using limitedly, FEM simulations.