Design development and analysis of generalized single phase bridgeless AC DC power converters with improved power quality

Abstract

In recent years, research into power factor correction AC-DC converters has been developed. Battery charging, arc welding, industry, and the military are all applications for these AC DC converters. Traditional AC DC conversion employs transformers, semiconductors, and resistors. Power losses, input current distortion, and a low power factor are all disadvantages of conventional converter topologies. AC-DC converters are typically accompanied by a rectifier in power factor correction converters. The fundamental disadvantage of converters the discontinuous form of supply current generates more harmonics. As a consequence, a bulky input filter newlinecomposed of passive components is required to suppress undesired distortions, resulting in a reduction in efficiency and an increase in system cost. I n this research work, several single phase AC-DC Bridgelessbuck- boost converter topologies like Cuk, SEPIC, Canonical Switching Cell and Landsman converters are studied in order to ensure the power quality at the input side. This research aims to develop a modified bridgeless positive output canonical switching cell power factor correction converter that boost input power quality and offers a regulated DC output voltage. With the aid of a small filter on the input side, discontinuous conduction mode is frequently newlinechosen for input power factor correction. The circuit is simple as two diodes are eliminated. A setup of 100 W, 48 V modified bridgeless canonical switching cell converter is designed in order to compare simulation results with hardware outcomes. Furthermore, even under power of low load, this topology offers low current harmonic distortions. newline newline