COMPARATIVE ANALYSIS OF FLEET OF EV INTEGRATION IN AC, DC AND HYBRID MICROGRID

Abstract

Electric vehicles (EVs) are the prominent choice in the transportation sector to decrease the consumption of fossil fuels as well as greenhouse gases (GHG) productions. Microgrid operations especially hybrids AC/DC pave progressive development in the electrical vehicle by using renewable resources providing penetration of direct current (DC) into alternating current (AC). Power flow in AC, DC, and Hybrid-microgrid was made with the help of an isolated bidirectional battery charger with the potential of 1.5kW of 120 V. The proposed battery charger circuit was designed into two-stage conversion AC-DC and DC-DC. AC-DC conversion was done with the help of an inverter, while the rectifier was used for DC-DC conversion. Four switches operating at a High-frequency PI controller were used to maintain the output of 120V DC for battery charging while two controllers were used in the proposed battery charger circuit for battery power discharge system. Conduction losses were measured for comparative analysis of EV integration and future interventions. The mathematical equation and datasheet of IGBT were analysed by using MATLAB/SIMULINK software. While the 2nd phase of the study was impressions of innumerable types of EV charging on AC and DC voltages and regularity of the commercial hybrid AC/DC microgrid were scrutinized. Results revealed that maximum losses were found in the AC grid while minimum losses shown in the DC grid system. While the harmonic distortion in the case of the DC grid is also very low as compared to the others. Results underlined the insinuations of substance synchronized EV charging to condense adversative functioning impacts and associated ventures.