Conversor CA / CC com Topologia Zeta modificado para aplicação em soldagem a arco elétrico com eletrodo revestido.

Abstract

In recent years, the consumption of electric power has increased due to the high demand of equipment, many of them of high power. Some of these equipments are the electric arc welding machines, whose composition is transformers with low power factor, causing a high consumption of reactive and providing high rates of harmonic distortion (TDH). The purpose of this work is to analyze, design, simulate and test a CA-CC converter as a power factor pre-regulator (PFC), the topology used for this study was the isolated double-switched zeta converter for use in arc welding by coated electrodes. Analyzes of the zeta converter were carried out in the continuous (CCM) and discontinuous (DCM) conduction mode, the project design and simulation results were presented.