Lyapunov-Based Control of Single-Phase AC–DC Power Converter for BEV Charger

Abstract

In this paper, we consider the problem of controlling single-phase ac–dc power converter for battery electric vehicle (BEV) charger. The control objectives are threefold: (i) unitary power factor (UPF) in grid side, (ii) tight regulation of dc-bus voltage to its constant reference in dc side, and (iii) asymptotic stability of the closed-loop system. Based on the nonlinear model of the studied system, a nonlinear controller is designed using Lyapunov approach. In order to validate the effectiveness of the proposed nonlinear controller, several numerical simulations are performed using the MATLAB/Simulink software.