common-mode current

A Reliable Three-Phase Transformerless Grid-Connected PV Inverter With Inductive DC Link Abstract-In this paper, a modi?ed buck?boost grid-connected three-phase photovoltaic inverter is presented. In the structure of inverter, an inductive dc link is used between the input and output. The merits of the employed inverter are soft switching and step-up/down conversion without any additional power…