Renewable energy sources such as photovoltaics (PVs) or fuel cells (FCs) are not fitted for
direct power grid connection because they deliver DC voltage and current. In addition, they
also have a high internal resistance/nonlinear V/I dependence, which is why a power
electronic interface is always needed. This paper presents the implementation of a three-
phase power electronic interface for PV/FCs that uses a single conversion stage approach
based on a current source inverter (CSI) topology with series connected capacitors, that …