A SiC-Based Hybrid PFC-Inverter for On-board EV Chargers

Abstract

Extensive research on electric vehicles (EVs) has been made as the popularity has been increasing in recent years. Many studies show the advantages and necessities of the bidirectional on-board chargers (OBCs) implantation in EVs. One of the essential parts of an EV’s OBC is power factor correction (PFC) converter. Nowadays, boost types PFCs have been widely used. The main problem with these converters is that they cannot provide a wide output voltage range. This work presents a hybrid PFC-Inverter for bidirectional EVs charging applications. MATLAB/Simulink is used to validate the proposed converter, and simulations are performed from 10% of the rated power to full load in PFC and inverter operation modes separately. The obtained results indicate a unity power factor (PF) and a total harmonic distortion (THD) of the input current at 3.65% in charging mode and a THD of the output current at 2.18% in discharging mode at rated power and voltages that agrees with standards.