Three phase to single phase current fed high step up ac-dc matrix converter based on CWVM

Abstract

A single-phase step-up ac–dc matrix converter based on Cockcroft–Walton CW) voltage multiplier is explained in this paper. Here we are using a four bidirectional- switch matrix converter in between the CW circuit and ac source, the modern topology gives high quality of line conditions, adjustable output voltage, and low output ripple. The proposed matrix converter is operated with two independent frequencies. One of the frequencies is associated with Power Factor Correction (PFC) control, and the other frequency is to set the matrix converters output frequency. Here we are simulated 50V/12W converter for measurement and analysis. The measured system efficiency and power factor is improved and output voltage ripple is reduced at full load condition.