Comparison of brushless DC motors with trapezoidal and sinusoidal back-EMF

Author

Tabarraee, Kamran ; Iyer, J. ; Chiniforoosh, S. ; Jatskevich, Juri

Author_Institution

Electr. & Comput. Eng., Univ. of British Columbia, Vancouver, BC, Canada

fYear

2011

fDate

8-11 May 2011

Abstract

For analysis of electromechanical systems with brushless DC (BLDC) motors and power electronic drives it is essential to have a sufficiently accurate model of the machine. This paper compares the BLDC motors with sinusoidal and trapezoidal back-EMF waveforms and presents an improved detailed model for the 120° BLDC motor-inverter system with trapezoidal back-EMF. The established model is shown to be more accurate in comparison to the typical models that assume sinusoidal back-EMF. The presented studies are based on a typical industrial BLDC and include measurements and simulations using various detailed models developed in two different simulation packages.

Keywords

DC motor drives; brushless DC motors; electric potential; invertors; BLDC motor inverter system; brushless DC motor; electromechanical systems; power electronic drive; sinusoidal back EMF; trapezoidal back EMF; Brushless DC motors; Harmonic analysis; Mathematical model; Predictive models; Torque; Detailed Model; brushless dc motor; trapezoidal back-EMF;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering (CCECE), 2011 24th Canadian Conference on

Conference_Location

Niagara Falls, ON

ISSN

0840-7789

Print_ISBN

978-1-4244-9788-1

Electronic_ISBN

0840-7789

Type

conf

DOI

10.1109/CCECE.2011.6030567

Filename

6030567