A Common-Ground Seven-Level Boosting Inverter (CG7LI) for Solar-PV Application

In this work, a new seven-level inverter architecture for common-ground single-phase photovoltaic (PV) systems with boosting capability is proposed. The size of the passive elements and the number of power components have been reduced in the suggested inverter. For it to function properly, fourteen switches and three capacitors are needed. The number of levels, switches, capacitors, and diodes in the inverter circuit, as well as boosting (step-up capability), common grounding capability (CG), and leakage current value as useful parameters for evaluating inverter performance, are compared with recent multilevel inverter topologies in a comparative study. The proposed seven-level inverter was created in the PLECS environment for its validation.