Title :
Torque ripple reduction of BLDC motors by modifying the non-commutating phase voltage
Author :
Sangsefidi, Y. ; Ziaeinejad, S. ; Shoulaie, A.
Author_Institution :
Electr. Eng. Dept., Iran Univ. of Sci. & Technol., Tehran, Iran
Abstract :
This paper presents a method for commutation torque ripple reduction in brushless DC motor (BLDCM) drives. Commutation torque ripple depends on the current ripple. In the proposed method, by adding an extra voltage source to the non-commutating phase, current ripple and so commutation torque ripple is suppressed. The current ripple of BLDC motor in 120° elec. conduction mode is analyzed. The proposed method is confirmed by the dynamic simulation of a 600 W BLDC motor.
Keywords :
DC motor drives; brushless DC motors; commutation; commutator motors; torque control; BLDC motor drive; brushless DC motor; commutation torque ripple reduction; current ripple; dynamic simulation; electric conduction mode; non commutating phase voltage; power 600 W; Brushless DC motors; Commutation; Electromagnetics; Permanent magnet motors; Torque; Brushless direct current (BLDC) motor; commutation torque ripple reduction; current ripple; torque ripple;
Conference_Titel :
Electrical, Control and Computer Engineering (INECCE), 2011 International Conference on
Conference_Location :
Pahang
Print_ISBN :
978-1-61284-229-5
DOI :
10.1109/INECCE.2011.5953897
