Research and review on Quasi-Z source grid connected inverter

The Quasi-Z source inverter was a newly proposed circuit topology in recent years, which was developed from Z source inverter. Due to the so many advantages, It has important research value and broad application prospects in the renewable Energy field of PV and fuel cell. The circuit strategy and feature is analyzed in this paper. This paper also focus on the novel circuit topology, control strategy and modeling of this inverter. A simulation example was given to verify the above analysis.