Performance investigation of new reduced switch count thirty-three level multilevel inverter

Multilevel inverters have a vast range of research and development opportunities that remain growing in depth and breadth. They also present an amazing amount of problems. Furthermore, to reduce the total harmonic distortion, improve efficiency, reliability, simplicity and reduce the cost of multilevel inverters. The primary motivation of this research is to establish an efficient MLI with reduced active switching elements to more levels in the output in order to get improved waveform quality by reducing THD and also reduce TSV per unit and cost function per level. NLC techniques is used in these inverters to control the switching schemes. Thirty-three level new reduced switch count MLI is recommended with only 17 switches and 4 unsymmetrical voltage sources. The performance of recommended system is verified for R and RL loads. TSV per unit calculated and it is 6.09. The total harmonic distortion is 3.11 %, the cost function per level of the recommended inverter is 4.24 for weight co-efficient 0.5 and 4.61 for weight co-efficient 1. The performance of the recommended inverters is reliable, less complexity, TSV per level is low and cost function per level is less. The THD produced by these 33 level inverters meet the standards of IEEE.