P and Q control strategy for single phase Z/qZ source inverter based on d-q frame

This paper explains a new control strategy for controlling active and reactive powers in a single phase Z or qZ source inverter to increase the active functions of these converters when they are interfacing with distributed energy resources. The proposed strategy is based on a d-q synchronous reference frame and it is validated by simulation in a single phase three-level neutral-point-clamped topology. Both steady and transient states are studied under different conditions.