Power converter topology for conditioning a fuel cells battery voltage

摘要

This paper presents a dc-dc converter for conditioning the output voltage of a generator that uses a battery of fuel cells as primary source. The proposed topology includes an LCL filter at the output of the primary source. The LCL filter replaces the L filter that is typically used at the input of the step up converter. The control of the output voltage of the converter is performed with a sliding mode strategy which includes a load impedance observer.The results are validated through simulation results, which show the performance of the proposed system to load changes.