Reduction of torque ripple and increase of torque capacity of BLDC motor

Author

Mousavi, S.M.H. ; Sefid, S.S.S.G. ; Mirbagheri, S. Mina ; Sefid, S.E.S.G.

Author_Institution

Khuzestan Regional Electr. Co., Ahvaz, Iran

fYear

2012

Firstpage

1

Lastpage

5

Abstract

This paper uses the idea of increasing the phases of Brushless DC motors (BLDC motors) with the purpose of Performance improvement of this motors. At first, a new model for the drive of 9-phase BLDC motor is studies. This model is simulated and run by Matlab/Simulink software. Then, the obtained results including Steady-state and transient characteristics, are compared with the results of 3, 5 and 7-phase models. The results of comparison show the advantages of increasing number of phases of BLDC motor, including considerable reduction of torque ripple, increase of starting torque and partial improvement in motor efficiency.

Keywords

brushless DC motors; 3-phase models; 5-phase models; 7-phase models; 9-phase BLDC motor; Matlab-Simulink software; brushless dc motors; motor efficiency; performance improvement; starting torque; steady-state characteristics; torque capacity; torque ripple reduction; transient characteristics; Brushless DC motors; Hysteresis motors; Mathematical model; Motor drives; Torque; BLDC motor; simulation; speed control; torque ripple;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Drives and Energy Systems (PEDES), 2012 IEEE International Conference on

Conference_Location

Bengaluru

Print_ISBN

978-1-4673-4506-4

Type

conf

DOI

10.1109/PEDES.2012.6484303

Filename

6484303