A New Approach for the Application of Single Phase Transformerless Inverters with Leakage Current Elimination in PV Systems

Abstract

The transformerless photovoltaic (PV) inverter topology is suggested in this paper to lower leakage current. Multilevel inverters can employ either sine waves or modified sine waves and are a source of high power that is frequently used in industrial applications.The topology benefits from a straightforward structure, light weight, and improved efficiency. However, the parasitic capacitance that forms between the photovoltaic (PV) module and the ground provides a conduit for leakage current to pass.Without introducing any additional components, a modulation technique has a considerable influence on reducing leakage current. In order to lower leakage current in a transformerless cascaded multilevel inverter for photovoltaic (PV) systems, a hybrid multicarrier pulse width modulation (H-MCPWM) technique is proposed in this study. Low leakage current is guaranteed by the suggested hyb