• RAVIKUMAR BODA
• Prof.G.Mallesham

Transformer-less inverter are commonly employed in grid-connected photovoltaic (PV) systems due to their small size, light weight, and low cost. In transformer-less PV inverters, on the other hand, common mode voltage reduction is one of the most critical challenges. Moreover, depending on the converter topology and modulation approach, numerous appealing single-phase transformer-less inverter topologies have been devised to eliminate the common mode voltage. Furthermore, the literature has paid little attention to three-phase topologies with low common mode voltage. To lower the common mode voltage, this paper offers a novel three phase eight switch inverter (H8) and related modulation approach. It's based on a three-phase (H6) inverter, although it works on a different concept. Performance experiments using MATLAB/Simulink are used to evaluate the efficacy of the proposed H8 design. Results show low variation in CMV and low THD in the output grid current, Low variation in CMV throughout the operation results in reduced leakage current.

Common mode current, common mode voltage, modulation index, transformer-less inverter, three phase inverter.

"Three-phase H8 inverter with reduction common mode voltage and leakage current for TL-PV system", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 2, page no.e689-e703, February-2022, Available :http://www.jetir.org/papers/JETIR2202489.pdf

"Three-phase H8 inverter with reduction common mode voltage and leakage current for TL-PV system", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 2, page no. ppe689-e703, February-2022, Available at : http://www.jetir.org/papers/JETIR2202489.pdf