Improved Analytical Model of a Permanent-Magnet Brushless DC Motor

Journal article (2008)

Authors

P. Kumar

P. Bauer

Department

Electrical Sustainable Energy () (TU Delft)

Magnetization BLDC motor Permanent magnets Air-gap field

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Published Date

07-10-2008

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Source:

IEEE Transactions on Magnetics, 44 (10), 2008

Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Electrical Sustainable Energy

Abstract

In this paper, we develop a comprehensive model of a permanent-magnet brushless DC (BLDC) motor. An analytical model for determining instantaneous air-gap field density is developed. This instantaneous field distribution can be further used to determine the cogging torque, induced back electromotive force, and iron losses in the motor. The advantage of analytical models is that they can be readily used for optimization of BLDC motor because they are fast.

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