TY - JOUR N2 - Brushless DC motors are often used as the power sources for modern ship electric propulsion systems. Due to the electromagnetic torque ripple of the motor, the traditional control method reduces the drive performance of the motor under load changes. Aiming at the problem of the torque ripple of the DC brushless motor during a non- commutation period, this paper analysis the reasons for the torque ripple caused by pulse- width modulation (PWM), and proposes a PWM_ON_PWM method to suppress the torque ripple of the DC brushless motor. Based on the mathematical model of a DC brushless motor, this method adopts a double closed-loop control method based on fuzzy control to suppress the torque ripple of the DC brushless motor. The fuzzy control technology is integrated into the parameter tuning process of the proportional–integral–derivative (PID) controller to effectively improve the stability of the motor control system. Under the Matlab/Simulink platform, the response performance of different PID control methods and the torque characteristics of different PWM modulation methods are simulated and compared. The results show that the fuzzy adaptive PID control method has good dynamic response performance. It is verified that the PWM_ON_PWM modulation method can effectively suppress the torque ripple of the motor during non-commutation period, improve the stability of the double closed-loop control system and meet the driving performance of the motor under different load conditions. L1 - http://journals.pan.pl/Content/114127/PDF/10_AEE-2019-4_INTERNET.pdf L2 - http://journals.pan.pl/Content/114127 PY - 2019 IS - No 4 EP - 858 DO - 10.24425/aee.2019.130687 KW - DC brushless motor KW - electric propulsion KW - fuzzy PID control KW - torque ripple KW - PWM_ON_PWM modulation A1 - Daode, Zhang A1 - Wei, Lingkang A1 - Hu, Xinyu A1 - Zhang, Chupeng A1 - Li, Xuesheng PB - Polish Academy of Sciences VL - vol. 68 DA - 2019.12.02 T1 - Research on torque ripple suppression of brushless DC motor based on PWM modulation SP - 843 UR - http://journals.pan.pl/dlibra/publication/edition/114127 T2 - Archives of Electrical Engineering ER -