**6. Conclusions**

A new method was proposed for the reduction of cogging torque in permanent magnet BLDC motors. In this method, a rotor with an asymmetrical magnet structure is recommended for the minimization of cogging torque. The asymmetry is achieved through the displacement of the permanent magnet. The shifting angle considered for the analysis was selected by maintaining the L/τ ratio within the permissible limit. Combinations from 1◦ to 8◦ were tried out. The magnet pole shifting caused variations in the flux line distribution and flux densities. The variation in flux density helped to achieve a reduction in cogging torque. When the shifting angle was 3◦ , the minimum cogging torque was obtained. The prototype adopted for this method was analyzed using FEA, showing an immense decrease in cogging torque. A novel analytical approach was also developed in order to be able to speculate regarding the effects on cogging torque in a permanent magnet BLDC motor. The predicted cogging torque curve showed good agreement with the FEA results. The proposed method is practical and capable of achieving low cogging torque. The proposed rotor structure with an asymmetrical magnet is advantageous for the minimization of cogging torque.

**Author Contributions:** T.A.A. and M.A.N.D. have same contribution in design in motor and article work. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Conflicts of Interest:** The authors declare no conflict of interest.
