Performance evaluation of single-phase transfomer-less PV inverter topologies

Double line frequency power decoupling with reduced capacitance and mitigation of leakage current are two of the major challenges of any grid-connected single phase photovoltaic (PV) inverter. This paper compares the performances of different topologies for single phase transformerless PV application in terms of the power decoupling capacitor requirement, the current ripple and total harmonic distortion (THD), efficiency performance, and leakage...