A Water Pumping Photovoltaic Powered System Based on a Merged DC-DC Sepic-Cuk Converter

Cordeiro, Armando; Foito, Daniel José Medronho

http://hdl.handle.net/10400.26/32564

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Authors

Cordeiro, Armando

Foito, Daniel José Medronho

Abstract(s)

This paper has the purpose to present a non-isolated dual output DC-DC converter for a water pumping photovoltaic powered system. The proposed topology is based in the integration of a traditional Sepic and Cuk converters but requires only a single power semiconductor switch. It is characterized by an extension of the voltage static gain when compared with the classical boost topology and by a reduced voltage stress across the power switch and diodes. The system will be implemented through a classical MPPT algorithm that will control the proposed DC-DC converter. Several simulation and experimental results are also presented in order to confirm the characteristics of the proposed power converter and global water pumping systems.