Abstract. This paper deals with the study of the non-ideal ZSource inverter where the inductors and capacitors resistance are taken into account, while the main aim of the Z-source inverter for performing voltage buck and boost capabilities using a unique impedance network between the power source and converter circuit is guarded. In this paper an average model for the ZSource inverter using state space averaging is proposed. Then, the behaviors of the studied system is analyzed based on the stability of the presented model, this analyze leads to the design of the suitable controller to be used to ensure the stability of the presented model. Finally the average model analyze is verified by simulation results
