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Reduction of cogging torque in PMBLDC motor with reduced stator tooth width and bifurcated surface area using Finite Element analysis

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2 Author(s)
Rizwan, M. ; Electr. & Electron. Eng., SRM Univ., Chennai, India ; Doss, M.A.N.

This paper proposes a method for reduction of cogging torque with reduced stator tooth width and bifurcated active surface area using Finite Element analysis. For the proposed changes in the motor design the variation in the flux density distribution in the air gap, cogging torque and reluctance torque ripple are determined. The variations in the torque developed by the motor, cogging torque, output power, losses and efficiency for different stator tooth shapes are recorded. From the present study it is observed that there is a significant reduction of cogging torque with reduced stator tooth width & bifurcated active surface area compared with a specified motor.

Published in:

Electrical Energy Systems (ICEES), 2011 1st International Conference on

Date of Conference:

3-5 Jan. 2011