PROPOSED SYMMETRICAL 5-LEVEL AC-DC VIENNA RECTIFIER FOR HIGH PERFORMANCE APPLICATION

Abstract

Vienna rectifier with reduced number of switches has been receiving wide
interest in the past years to improve the input power quality of rectifier systems.
In this paper, a review of three phase 3-level Vienna and configuration of 5-level
structure from 3-level Vienna topology are presented. Moreover, Phase Opposite
Disposition (POD) and Phase Disposition (PD) Pulse Width Modulation (PWM)
control are proposed and compared to eliminate the low frequency harmonic in
the line current and to achieve unity power factor at the rectifier input terminal.
In this paper, the performance and feasibility of the proposed single phase and
three phase 5-level Vienna topologies are verified by simulation.