The technology study of permanent magnet brushless DC motor without position sensor

Author

Rong, Jun ; Zhou, Yong ; Zhang, Min ; Chen, Xi ; Li, Xian ; Li, YiMing

Author_Institution

Dept. of Inf. & Commun. Engineeing, Hunan Inst. of Sci. & Technol., Yueyang, China

fYear

2012

fDate

21-23 April 2012

Firstpage

736

Lastpage

739

Abstract

The paper studies the control technique of without position sensor for permanent magnet brushless motor(BLDCM). According to the mathematical model of BLDCM, the paper derives the working principle of commutation principle for using the third harmonic back electromotive force(EMF). Compared with the other technologies of without position sensor, the method of third harmonic detection can be easily achieved in the application of high-power BLDCM, and the system operation is very stable. At last the simulation results show that the theoretical analysis is completely correct, and the result provides a new study idea to the technology of without position sensor for BLDCM.

Keywords

brushless DC motors; commutation; electric potential; machine control; mathematical analysis; permanent magnet motors; commutation principle; mathematical model; permanent magnet BLDCM; permanent magnet brushless DC motor; position sensor; third harmonic back EMF; third harmonic back electromotive force; third harmonic detection; working principle; AC motors; Application software; Harmonic analysis; Integrated circuits; Permanent magnets; Presses; Pulse width modulation; permanent magnet BLDCM; simulation; third harmonic; without positon sensor;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics, Communications and Networks (CECNet), 2012 2nd International Conference on

Conference_Location

Yichang

Print_ISBN

978-1-4577-1414-6

Type

conf

DOI

10.1109/CECNet.2012.6201890

Filename

6201890