Method for controlling an AC / DC converter for electric vehicle charging stations

Abstract

The subject of the application is a method of controlling a converter (AC / DC) for an electric vehicle charging station that stabilizes the voltage in the circuit (DC) in conditions of voltage dips with reduced capacitance in the intermediate circuit (DC).A method of controlling a converter (AC / DC) for an electric vehicle charging station, stabilizing the voltage in the circuit (DC) in the conditions of voltage dips with reduced capacitance in the intermediate circuit (DC) constituting the first stage of conversion of the converter power module (CPM), with reduced capacitance CDC in the intermediate direct current circuit DC_link, for applications in electric vehicle charging stations DC_EVCS, consisting in determining the reference currents Iref,áâ using the symmetrical component method, consists in determining the reference currents Iref,áâ in the control system and modifying the negative component of the measured network voltage Uconv by introducing the coefficient k, m and r allowing for any shaping of the converter current Iconv.