Mesh-based isolated micro inverter based on the Quasi-Z-Source network

Abstract

Due to many benefits quasi-Z-source based converters are suitable for renewable energy application, in particular for the photovoltaic systems. However, there are some problems that need closer analysis before quasi-Z-source converter can be fully implemented in PV micro inverters. The goal of this work is to address those problems and achieve stable performance of a micro inverter based on the quasi-Z-source network in the full load profile. The simulation results confirm the feasibility of the suggested solution. Tuning process is revealed.