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This paper deals with the design process of brushless dc (BLDC) motor considering with the magnetization process included the skewed magnetizing fixture. The optimal design is also conducted to compensate the reduced back-EMF due to the skewed PM. The BLDC motor is designed by the loading distribution method and the skewed PM is analyzed 3D FEM. In addition, to reduce the simulation time of 3D FEM,...
This paper proposes a method to reduce the torque ripple of a square wave voltage-driven BLDC motor. First off, this paper reviewed an existing voltage control method to reduce torque ripple, and confirmed through it that cogging torque component still remains. And this paper proposed an improved voltage control method to offset cogging torque components. Analysis was done by using FEM model, and...
This paper presents a statistical approach to the reduction design for cogging torque in a BLDC motor. In the approach, the finite element method, the numerical optimization technique, and the response surface methodology are effectively introduced. Additionally, the proposed approach provides the effective information to design engineers. Finally, the validity of this paper is verified by test.
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