Design and implementation of photovoltaic module using multilevel inverter and boost converter

1,2Student, Department of Electrical Engineering, NIT Durgapur, West Bengal, India 3Professor, Department of Electrical Engineering, NIT Durgapur, West Bengal, India ---------------------------------------------------------------------***--------------------------------------------------------------------AbstractThis paper presents the design of photovoltaic module, where the panel is constructed by series and parallel connection of solar cell. The power obtained from the solar panel is boosted up by feeding it to dual stage boost converter and then the output is fed to multilevel cascaded H-bridge inverters. The utilization of multilevel inverter in power electronics has been increased since last decades. Multilevel cascaded H-bridge inverters have high conversion efficiency, easily interfaced with renewable energy sources such as solar panel. In this paper comparisons have been made of THD of voltage waveform obtained from 3,5,7,9 and 11 level cascaded H-bridge inverter, using shifted pulses technique for switching. Also comparisons has been made of THD of sinusoidal voltage waveform obtained from T-LCL type LPF filter used for 3,5,7,9 and 11 level inverters to get voltage with minimum harmonics. This paper demonstrates that as the level of cascaded H-bridge inverter used increases the Total Harmonic Distortion (THD) decreases.