Design and Implementation of High Gain SEPIC Converter

Abstract

The study’s purpose is to design a novel high voltage gain single ended primary inductor converter (SEPIC) that is suitable for photovoltaic energy. A split inductor circuit and an expanded switched capacitor circuit have been combined with a modified SEPIC converter to create this topology. A high gain voltage with low value of duty ratio is the main advantage of the implemented topology. By mixing the split inductor circuit (three diodes and two inductors) and the switched capacitor circuit (two diodes and two capacitors) with the modified SEPIC converter, the output voltage gain is increased to 7.5 with a duty ratio value of 0.5. The steady state study and the principle of operation of the presented DC-DC SEPIC converter are produced in continuous conduction mode (CCM). The theoretical analysis and the performance of the designed SEPIC converter is verified by MATLAB program and practical outcomes.