Soft-switching interleaved boost converter with high voltage gain applied to a photovoltaic system

This paper presents a soft-switching interleaved boost converter with high voltage gain connected to photovoltaic panels. This converter is far suitable for this application, as it presents a high step-up voltage and high efficiency, due to the non-dissipative soft-switching cell adapted to the converter. In order to verify its effectiveness, experimental results from this converter operating with hard-switching and soft-switching are compared. Theoretical analysis, operation principle and topology details are also presented and studied. High voltage gain, low switching stress, small switching losses, and high efficiency are expected from this topology.