Analysis and simulation on commutation force ripple of BLDCLM based on velocity

Author

Wang, Gang ; Li, Xiaomin ; Zhao, Keyi ; Li, Zhiyuan ; Li, Huilai

Author_Institution

Mech. Eng. Coll., Shijiazhuang, China

fYear

2012

Firstpage

1

Lastpage

5

Abstract

During the electromagnetic launchers, the Brushless DC linear motor works on the accelerated state, the range of velocity is wide, so the research on the influence of the speed upon the commutation force ripple is very important. The paper establishes the mathematical model of BLCDLM on the consideration of all factors that affects the commutation force ripple. Common formulas of the current, commutation time and force are derived by solving the mathematical model, and the curve of the current is given. Influence of speed and the back-EMF on the force ripple is analyzed in detail. At last, the results of simulation validate the analysis of theory.

Keywords

brushless DC motors; commutation; electric potential; electromagnetic launchers; linear motors; BLDCLM; accelerated state; back-EMF; brushless DC linear motor; commutation force ripple; commutation time; electromagnetic launchers; mathematical model; velocity range; Analytical models; Brushless DC motors; Commutation; Force; Mathematical model; Resistance; Torque; BLDCLM; commutation time; force ripple;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Launch Technology (EML), 2012 16th International Symposium on

Conference_Location

Beijing

Print_ISBN

978-1-4673-0306-4

Type

conf

DOI

10.1109/EML.2012.6325104

Filename

6325104