Comparison of Different Topologies of Multilevel Inverter

Multilevel inverters are being used in the production/industrial sector for quite some time. They are generally used to achieve high power output from medium-level voltage sources. They reduce the harmonic distortion (also known as total harmonic distortion or THD) present in the output voltage generated by these multilevel inverters. This paper tries to compare the different topologies of multilevel inverters which are cascaded h-bridge multilevel inverter, modular multilevel converter, and diode clamped multilevel inverter. The topologies have been simulated in MATLAB SIMULINK software and the final results are tabulated.