Improvement Of Power Quality In Electric Vehicle Charging With Bridgeless Cuk Converter

Abstract

A bridgeless Cuk converter based EV (Electric Vehicle) battery charger is designed in the project. The charger designed is better than the conventional charger because it uses less number of devices due to which the conduction losses is reduced and hence, charger efficiency is increased. The flyback converter is used at the battery side which is helpful in isolating the battery as well as synchronising the battery commands during constant current and voltage mode. The proposed charger is helps in reducing the total harmonic distortion (THD) in supply current to the limits as per the IEC 61000-3-2 standard by drawing sinusoidal current from the supply. The power density of the battery is very high and the cost of the battery is low. The working of the charger is simulated in MATLAB/SIMULINK.