Perfect Tracking Control of Servo Motor Based on Precise Model with PWM Hold and Current Loop

In motion control, position control systems of servomotors are generally designed without considering a current loop and dynamics of a PWM inverter. In this paper, a novel precise model of servomotor is developed including the current loop and the PWM inverter, and the high-speed servo system is proposed based on perfect tracking control with the precise model. Finally, simulations and experiments are performed to show the advantages of the proposed method.