A Novel Seven Level MLI with Unidirectional and Bidirectional Switches

Multilevel inverters are used in various application in low, medium and high-power applications which eliminates the need of bulky step-up transformers. Also, the produced harmonics are least in comparison with the traditional inverters. Cascaded multilevel inverter are known for the flexibility and modularity and the advantage is lesser number of power switch count than other types. But cost increases when increase in levels even though the benefits like pure sinusoidal waveform and reduced THD. In this paper, the novel multi-level inverter (MLI) topology with reduced power switches is discussed for seven level. The proposed paper is discussed with unidirectional and bidirectional switches. Two different novel topologies are compared and results are verified with MATLAB software.