Cascaded Single-Phase Boost Inverter Using High Frequency Transformer

Abstract

Quasi-switched boost inverter was investigated to replace Z-source inverter and switched-boost inverter in the field of low power applications because it uses one-LC-pair less than Z-source inverter. In this paper, we suggest the configuration of H-bridge quasi-switched boost inverter based on high frequency transformer (H-qSBI) to improve voltage gain factor. The proposed topology contains the same devices like switched boost inverter, where the active switch is replaced by an H-bridge inverter. This paper focuses on analyzing quasi-switched boost inverter (qSBI) implementation and simulating the performing results of cascaded single-phase dual-inverter using high frequency transformer by PSIM simulation software. The results are tested by an input DC voltage of 36 V to generate an AC voltage of 220Vrms/50Hz.