Multi-layer switched reluctance motor to reduce torque ripple

A new multi-layer switched reluctance motor (MSRM) having a high starting torque capability with reduced torque ripple and acoustic noise is presented. Measured data and the results of numerical analysis are given to evaluate the motor structure. In the numerical analysis, due to the highly nonlinear nature of the motor, finite element analysis (FEA) is employed. A prototype multi-layer SRM is built and tested in the experimental studies. The obtained test and simulation results show that the multi-layer motor structure has a smooth torque profile with high starting torque and less acoustic noise.