Implementation of PSO Algorithm in Novel SEPIC Converter with PV Fed Source

Abstract

In this paper a novel SEPIC converter is designed for continuous input current operation. The SEPIC converter’s voltage gain is greater than that of traditional converters. This converter works via a single switch and there is less voltage stress around the switch. The input side filter circuit is not needed because the proposed converter’s input current is continuous. It is also suitable for applications involving renewable energy and fuel cells. The non-inverting output voltage is obtained in this converter. So, only by altering the duty cycle of the power switch pulse can it work at a wide output voltage range. This voltage regulation of the converter is regulated by the PI controller. Controller parameters are managed and varied by the PSO algorithm. This converter, due to the use of a single power switch, can easily control continuous conduction mode operation. Finally, the validity of the suggested dc-dc converter is checked by the simulation results and the output voltage control of the proposed converter is explained.