A predictive instantaneous-current PWM controlled rectifier with AC-side harmonic current reduction

Abstract

A new rectifier controlled by predictive instantaneous-current PWM control schemes for reducing AC-side harmonic currents in consideration of the DC-side voltage ripple is proposed. Unity power factor is also obtained. The paper describes three control schemes for a single-phase rectifier, and experimental and simulation studies of rectifier performance. The effectiveness of the control schemes is confirmed by experiments and simulations. The rectifier can be used in applications such as UPS systems and static VAr compensators.<>