Extended boost trans-Z-source inverter

Abstract

This paper proposes a new topology, which is named the extended boost trans-Z-source inverter. The extended trans-Z-source inverter, which is based on the improved trans-Z-source inverter, provides a continuous input current and a higher boost ability compared to most previously proposed Z-source inverter-based topologies. Another advantage of this proposed topology is its expandability. In some applications such as distributed power generation where high gain is often demanded, higher boost rates can be obtained by adding extra passive components. In order to investigate the performance of the proposed topology, comparison between the proposed topology and previously proposed schemes, in terms of boost ability, number of components and voltage and current stresses is made. Both the analytical and simulation results validate proper operation and performance of the proposed scheme.