Modeling and Simulation of Brushless DC Motor with Nonideal Back EMF

Ying Zhao; Yong Jun Yang

doi:10.4028/www.scientific.net/AMM.130-134.3434

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 130-134Modeling and Simulation of Brushless DC Motor with...

Modeling and Simulation of Brushless DC Motor with Nonideal Back EMF

Abstract:

The back electromotive force (EMF) waveform of brushless dc motor (BLDCM) is trapezoid. But it is not absolutely trapezoid because of motor manufacturing. In this paper, a method of modeling for BLDCM with nonideal back EMF is presented. Eighteen states during an electric angle cycle are obtained after the nonideal back EMF of BLDCM is analyzed. The S-Function of MATLAB is used to generate the nonideal back EMF according to rotor speed and position. The pulse width modulation (PWM) current control of BLDCM is adopted. Simulated results validate the method.

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Periodical:

Applied Mechanics and Materials (Volumes 130-134)

Pages:

3434-3437

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.130-134.3434

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Online since:

October 2011

Authors:

Ying Zhao, Yong Jun Yang

Keywords:

Blushless DC Motor, Modeling, Nonideal Back Electromotive Force, Simulation

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References

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