Optimizing the Cogging Torque Reduction of Integral Slot Number in Permanent Magnet Machine

Optimize the cogging torque reduction in permanent magnet machine was investigated in this paper, with the proposed machine of 48 stator slots and 6 poles. The slot opening proposed model width has been fixed to 2 mm. The two steps of slotting have been employed and assessed to reduce the cogging torque of the proposed model. In this study, the finite element method tool was implemented to investigate the magnetic flux distribution and the cogging torque reduction of the proposed model. The Response Surface Method (RSM) as one optimization technique has been implemented. By applying the finite element method, simulation results showed that the cogging torque of the PMMs proposed model could decrease effectively. In this study, the cogging torque reduction for the proposed model as much as 98.8 % compared with the initial model.