DZ-Source Converter: A Duality Inspiration of Z-Source Converter for Current-Source High-Conversion Ratio Applications

A novel derivation of a DC-DC current-source converter (CSC) family is proposed in this paper. According to the duality principles, a CSC family with current boost capability is proposed based on the well-known Z-source converter (ZSC). Furthermore, with the help of the improved topology of Z-source converter, namely the Quasi Z-source Converter (QZSC), the alternative CSC boost topology with reduced current stress over the components and continuous input power is proposed. This paper opens the possible derivation of a new family of DC-DC boost current source converters. The mathematical derivations of the two proposed converters are extensively studied and the results are validated with an accurate simulation model in PLECS. The utilized thermal model based on the real parameters of selected components is used for the efficiency analysis to accurately predict the performance of the future experimental setup.