scholarly journals A Novel Region-Refinement Pulse Width Modulation Method for Torque Ripple Reduction of Brushless DC Motors

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 5333-5342 ◽  
Author(s):  
Kai Liu ◽  
Zhiqiang Zhou ◽  
Wei Hua
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Torque Ripple ◽  
Modulation Method ◽  
Brushless Dc Motors ◽  
Brushless Dc ◽  
Dc Motors ◽  
Torque Ripple Reduction ◽  
Ripple Reduction

scholarly journals Electromagnetic Torque Ripple Reduction In Brushless Dc Motors

2008 ◽  
Vol 13 (1) ◽  
pp. 45-54
Author(s):  
José Roberto B. de A. Monteiro ◽  
Azauri Albano de Oliveira Jr. ◽  
Manoel Luis de Aguiar ◽  
Diógenes Pereira Gonzaga ◽  
Carlos Dias Maciel
Keyword(s):  
Torque Ripple ◽  
Electromagnetic Torque ◽  
Brushless Dc Motors ◽  
Brushless Dc ◽  
Dc Motors ◽  
Torque Ripple Reduction ◽  
Ripple Reduction

Novel modulation method for torque ripple suppression of brushless DC motors based on SIMO DC–DC converter

2020 ◽  
Vol 20 (3) ◽  
pp. 720-730
Author(s):  
Shikai Sun ◽  
Hui Guo ◽  
Yimeng Zhang ◽  
Yupeng Jia ◽  
Hongliang Lv ◽  
...  
Keyword(s):  
Torque Ripple ◽  
Modulation Method ◽  
Brushless Dc Motors ◽  
Brushless Dc ◽  
Dc Motors

Torque Ripple Suppression of Brushless DC Motors with Non-Ideal Back EMF for EPS Applications

2011 ◽  
Vol 201-203 ◽  
pp. 1198-1205 ◽  
Author(s):  
Xue Feng Zhang ◽  
Xue Wu Ji ◽  
Feng Gao
Keyword(s):  
High Performance ◽  
Pulse Width Modulation ◽  
Control Method ◽  
Torque Ripple ◽  
Brushless Dc Motors ◽  
Brushless Dc ◽  
Power Steering ◽  
Dc Motors ◽  
Commutation Torque Ripple ◽  
Type Motor

The torque ripple of brushless dc (BLDC) motors at low rotation speeds is prominent, while in the majority of working time of the automotive electric power steering (EPS) system, the steering rate is low and the assistant motor runs at low rotation speeds. Therefore, to develop a high-performance EPS system with a BLDC motor, the problem of torque ripple at low rotation speeds must be solved. Otherwise, the steering feel will not be smooth. This paper proposed an algorithm based on BLDC motors’ essential torque formula combined with the back-EMF (Electromotive Force) waveform coefficient to modify the target current to suppress the torque pulsation effectively. Meanwhile, the commutation process of this type motor is very short. Therefore, the torque coefficient can be regarded as constant during the commutation intervals. A direct pulse-width modulation (PWM) control method considering phase resistances is analyzed with a unipolar PWM scheme to reduce the commutation torque ripple further. Finally, simulations and experiments are conducted to verify the effectiveness of this method.

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