Single-Phase Three-Level qZ-Source Inverter Connected to the Grid with Battery Storage and Active Power Decoupling Function

This paper introduces a single-phase three-level neutral-point clamped quasi-Z-source inverter with battery storage and active power decoupling (APD) function. Main focus is on the tuning process of the digital control system of the investigated topology by taking into account digital delay caused by digital realization. The results of our approach are validated by simulation.