An improved PWM technique for brushless servo drives

브러시리스 전동기의 구동을 위한 개선된 PWM 방법

The paper describes a new PWM technique, which is suitable for brushless servo drives. By taking into consideration the armature electromotive force, an appropriate switching voltage vector can be selected to enable switching rate reduction. Simulation results show better steady-state performance of this method than that of the classical technique.