Energy efficient modulation algorithm of four-quadrant converter with power factor correction

Abstract

The report considers the use of an active four-quadrant rectifier with power factor correction in the traction power supply system. The principle of forming a sinusoidal input current in a four-quadrant converter with the proposed hysteresis control system is presented, as well as the results of research on a simulation model in the Matlab software environment are presented. An improved hysteresis modulation algorithm in an active four-quadrant converter has been synthesized, which makes it possible to reduce the number of switching of power switches and thereby reduce dynamic losses in the converter.