Abstract：To reduce torque ripple of brushless DC motor (BLDCM) control system, two torque control methods were proposed based on predictive current control of BLDCM with trapezoidal back electromagnetic fields (EMF). According to the characteristics of trapezoidal back EMF, an extended PARK transformation was used to make torque value proportional to current and to transform torque control into current control. Based on 120 degree commutation mode and hybrid commutation mode, two predictive current control methods were proposed by current calculating of the next control cycle through mathematical model analysis of BLDCM and by voltage vector choosing through values comparison of a cost function. The simulation results show that both of the proposed methods can successfully control current and speed of BLDCM with rapid torque response and low torque ripple.
周林阳, 王生捷. 基于预测电流控制的BLDCM转矩控制[J]. 江苏大学学报（自然科学版）, 2015, 36(1): 79-86.
Zhou Linyang, Wang Shengjie. Torque control of BLDCM based on predictive current control[J]. Journal of Jiangsu University(Natural Science Eidtion)
, 2015, 36(1): 79-86.
2015, Vol. 36 
