Title :
Improved Design for Reduction of Torque Ripple of Brushless DC Motor
Author :
Wang, Aiyuan ; Ling, Zhihao
Author_Institution :
Sch. of Electr. Eng., Shanghai Danji Univ., Shanghai, China
Abstract :
The paper has probed into the torque ripple of brushless DC motor fed by square wave. For the main torque ripple caused by electromagnetic factor, the equation of two-phase brushless DC motor has been deduced. Then considering the manufactured technique of the motor, an improved design for reduction the torque ripple has been presented with simplified and feasible proposition. And a case has been simulated by dynamic finite element method. The simulation results indicate that the improved design effectively reduces the torque ripple of the motor.
Keywords :
brushless DC motors; finite element analysis; machine theory; torque; dynamic finite element method; electromagnetic factor; torque ripple reduction; two-phase brushless DC motor design; Armature; Brushless DC motors; DC motors; Equations; Magnetic flux; Permanent magnet motors; Rotors; Servomotors; Synchronous motors; Torque; Brushless DC Motor; Motor; Torque Ripple;
Conference_Titel :
Industrial and Information Systems, 2009. IIS '09. International Conference on
Conference_Location :
Haikou
Print_ISBN :
978-0-7695-3618-7
DOI :
10.1109/IIS.2009.115
