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Energy Efficient Reference Tracking Modified Enhanced H-Bridge Multilevel Inverter

A Multilevel Inverter that uses less hardware, which is energy efficient and has reduced switching and conduction losses is proposed. This topology is developed from a symmetrical structure enhanced multilevel inverter (MLI). It consists of a seventeen level symmetrical structure enhanced H- Bridge, a DC source in series with the load through a switch and another switch to bypass the DC input source. By way of the addition of a DC input source, the number of levels of the proposed inverter has been increased to thirty-three; hence, the total harmonic distortion (THD) is reduced. Only four switches are in its active conducting state in each mode of operation due to which the power losses are reduced compared to a CHB and Developed H-Bridge MLI. The proposed single-phase multilevel inverter is simulated using MATLAB/ Simulink, and the results have been confirmed experimentally with a prototype.