Modified SEPIC DC-to-DC Converter 2/(1-k) Output Gain Configuration for Renewable Power Energy and High Voltage Applications

This paper investigates the analysis of a converter which has higher voltage gain as compared to the conventional and modified single ended primary inductor converter (SEPIC) topologies. Proposed high gain SEPIC converter has a combination of two voltage lifting topologies; the switched inductor-capacitor type and the switched capacitor modification. A combination of these two modifications achieves a voltage gain of twenty times at a duty ratio of 90% by using 3 inductors, 5 capacitors and 4 diodes. Simulations conducted in Matlab/Simulink validate the analytical analysis along with the derivations of the theoretical analysis of the converter.