An Model Predictive Control with Duty Cycle Control for PWM Rectifier

Abstract

Model predictive control (MPC) is an optimal control method which has been widely concerned in the field of AC motor control and power electronics converter in recent years. This paper presents a model prediction control with duty cycle control for PWM rectifier. In a control cycle, traditional single vector is replaced by a zero vector and a non-zero vector, and the two switch sequences operate in sequence, it improves the precision of voltage vector selection. The simulation results show that the proposed method effectively reduces the current distortion and DC bus voltage ripple compared with the traditional MPC.