Title :
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
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;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2012 2nd International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4577-1414-6
DOI :
10.1109/CECNet.2012.6201890
