• Keerthana Bollipo
• Kota Prabhakara Naidu
• Prabhu Chandu Malladi
• Ms.P.Suguna Ratnamala

This paper proposes the transformerless photovoltaic (PV) inverter topology to reduce leakage current Multilevel inverters are a source of high power, often used in industrial applications and can use either sine or modified sine waves. The topology has the advantages of simple structure, low weight and provides higher efficiency. However, the topology makes a path for leakage current to flow through parasitic capacitance formed between the photovoltaic (PV) module and the ground. A modulation technique has significant impact to reduce the leakage current without adding any extra component. This project proposes a hybrid multicarrier pulse width modulation (H-MCPWM) technique to reduce leakage current in a transformerless cascaded multilevel inverter for photovoltaic (PV) systems. The proposed hybrid multicarrier pulse width modulation technique ensures low leakage current in the transformerless photovoltaic seven level inverter system with simplicity in implementation of the modulation technique using lesser number of carriers.

Cascaded H-bridge multilevel inverter, hybrid multicarrier pulse width modulation (H-MCPWM), leakage current reduction, transformerless photovoltaic (PV) system.

"A NOVEL METHODOLOGY FOR SINGLE PHASE TRANSFORMERLESS INVERTER WITH LEAKAGE CURRENT ELIMINATION FOR PV SYSTEMS APPLICATION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.132-139, March-2019, Available :http://www.jetir.org/papers/JETIRAN06018.pdf

"A NOVEL METHODOLOGY FOR SINGLE PHASE TRANSFORMERLESS INVERTER WITH LEAKAGE CURRENT ELIMINATION FOR PV SYSTEMS APPLICATION", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp132-139, March-2019, Available at : http://www.jetir.org/papers/JETIRAN06018.pdf