Improved analytical model of a permanent-magnet brushless DC motor

Kumar, P; Bauer, P.

Improved analytical model of a permanent-magnet brushless DC motor

Journal article (2008)

Authors

P Kumar Electrical Power Processing

P. Bauer Electrical Power Processing

Research Group

Electrical Power Processing

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Published Date

2008

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Research Group

Electrical Power Processing

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.