Desenvolvimento de um retificador de alto fator de potência utilizando a topologia de dez pulsos

Abstract

This paper develops a three-phase rectifier, with a high input power factor, according to a topology which is still to be better explored, and present it as a possible alternative to the known and established six and twelve pulses topologies. It covers general concepts about the rectification process and three-phase rectifiers, as well as recommendations and restrictions related to current harmonics in rectifiers input currents and its impact on the device/installation input power factor. Mathematical analysis and theoretical deductions related to the proposed topology characteristics, as well as the three-to-five phase transformer development are shown and explained along the text. Following, the paper specifies the ten-pulse rectifier prototype schema and simulates its performance under various load situations via software. Finally, the real prototype testing is shown, and its results commented and analyzed according to the prototype’s harmonic and input power factor display.