This paper proposes a new common-ground transformerless inverter for a single-phase system. The proposed inverter is derived based on a dual-buck structure, in which a zero leakage current is obtained. The proposed inverter has no shoot-through problem; thus, the inverter’s reliability is improved. A comparison study with the conventional common-ground transformerless inverter has been made to evaluate the performance of the proposed inverter. Finally, simulation and experimental verifications are presented to confirm the effectiveness of the proposed inverter.
