• G. Kranthi Kumar
• Vinjamuri Praneetha

In a DC-AC system, some problems may threaten the reliability of the whole system, such as the shoot through issue and the failure of reverse recovery. Some methods are proposed to improve the reliability of the converters. In proposed inverter due to the splitting structure of inductor avoids reverse-recovery issues for the main power switches. High-frequency pulse width modulation switching commutation and the grid zero crossing instants, improving the quality of the output ac-current and increasing the converter efficiency. Also due to two additional AC-sides switches conducting the currents during the freewheeling phases so that the photovoltaic array is decoupled from the grid. This reduces the high-frequency common-mode voltage leading to minimized ground loop leakage current. This Paper describes H5 & H6 transformerless inverter topology.

Conventional H5 and H6 Transformerless Inverters, Proposed Transformerless Inverter, Ground leakage current analysis

"Implementation of Single Phase Transformerless Inverter for Grid Connected PV System ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.692-697, July-2018, Available :http://www.jetir.org/papers/JETIR1807993.pdf

"Implementation of Single Phase Transformerless Inverter for Grid Connected PV System ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp692-697, July-2018, Available at : http://www.jetir.org/papers/JETIR1807993.pdf