Bi-Directional Power Flow Rapid Charging System Using a Carrier Wave Modulated Self-Commutated Voltage Source Converter for Electric Vehicle

Abstract

This paper examines a high-performance battery charger for electric vehicles (EVs). Active power line filtering capabilities in the battery charger can be used to develop a fast-charging infrastructure that is advantageous for EV users as well as power distributors. This article discusses battery charger modeling and design difficulties in depth using a carrier wave modulated self-commutated voltage source converter architecture. A full study of the controller's features is also provided using model-based controller synthesis. The battery charger's active filtering performance is emphasized. In active filter applications, the model-based control system's intrinsic phase deviation and sensitivity to system factors decrease the active filter's performance, which is disclosed in this study. Based on numerous integrators in diverse reference frames, we provide an improved control structure for active filters to offset the model-based controller's degradation. The suggested controller demonstrates minimal sensitivity to system factors and fully compensates for the intrinsic phase deviation, as shown both theoretically and empirically. The suggested active filter controller has outstanding steady-state conditioning performance.