Design and Analysis of High Efficiency DC- DC Boost Converter for EV Charging Applications

Abstract

Abstract: In today’s scenario DC-DC converters plays a major role in EV Charging. Normally, a boost converter would only be used when the output voltage minimum is about 1.5 times the input voltage. The main drawback in conventional converters is high ripple input current, which reduces the lifespan of the converter and overall system. Thus, conventional boost converters are not suitable for high voltage applications. To Overcome these Problems Modified SEPIC Converter is developed. This Modified SEPIC Converter is able to increase the Input voltage by 10 times. Modification of the Conventional SEPIC Converter is done by adding Capacitors and Diodes. This Paper also talks about the Design and analysis of the DC-DC Modified SEPIC Converter and controlling the Output voltage of the converter with a PI controller. The converter works at high efficiency and the Converter is operated at Continuous Conduction Mode (CCM). This Converter can effectively be applied for Photovoltaic Systems. The results of the Modified SEPIC converter for open loop and closed loop are simulated in MATLAB/SIMULINK.