Title :
Improved Analytical Model of a Permanent-Magnet Brushless DC Motor
Author :
Kumar, P. ; Bauer, P.
Author_Institution :
Delft Univ. of Technol., Delft
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.
Keywords :
air gaps; brushless DC motors; electric potential; permanent magnet motors; torque; air-gap field density; analytical model; back electromotive force; brushless DC motor; cogging torque; instantaneous field distribution; permanent magnet motor; Air-gap field; BLDC motor; magnetization; permanent magnets;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2008.2001450
