Integration of High Gain Re-Lift Luo Converter with Buck Converter for Electric Vehicle Application

Abstract

Distributed power generation from integrated renewable energy sources (RES) is one of the key solutions for Electrical Vehicle (EV) charging. Generally, for small-scale integration of RES, the voltage level is insufficient for EVs charging. For providing the required voltage level from RES, DC-DC step-up converters play a vital role. In this paper, a new topology for high voltage gain (HVG) DC-DC converter is proposed without including an electromagnetic component. In the proposed converter topology, two conventional converters, i.e., Re-lift Luo and Buck converter (RLBC), are integrated. The proposed converter can provide step-up and step-down output simultaneously. The integrated converter (RLBC) can provide a theoretical gain upto 120 times for step-up operation. The proposed RLBC structure is simulated in MatLab simulink. Obtained result from simulation proves the functionality and mathematical analysis of the converter. In EVs various devices such as battery chargers, audio systems, electric motors, lights, and communication systems need different voltage levels. Consequently, the suitable application for the proposed structure is EV.