An Experimental Analysis of Seven Level Cascaded H-Bridge Multilevel inverter for Harmonic Minimization

Abstract: This research on cascade H-Bridge multilevel inverter in these days for various sectors goes on rapidly due to its systematic operation. This paper proposes a harmonic minimization in distribution network by using power converter. This project deals simulation and experimentation of 7-level inverter. It presents 7-level inverter with harmonics reduction along with the reduction in number of switches. The percentage (%) total harmonic distortion is calculated for 7-level inverter. A standard cascade multilevel inverter requires n DC sources for 2n + 1 level. The functionality verification of the 7-level inverter is done using MATLAB and HARDWARE. The result of simulation is verified by experimentation. The harmonic components of the output voltage and switching losses can be diminished considerably.

Keywords: Harmonic, inverter, voltage, Dc Source.