Trends and Challenges in Multi-Level Inverter with Reduced Switches

Multilevel inverter had been paid a lot of attention from the academia and research community in recent times due to its role high medium power applications. In this paper, detailed survey is made on recently designed multilevel find suitability inverters for particular Research performed various types such as: Symmetric, asymmetric, hybrid modularized order identify issues generating more levels at output. A summary with reduced switch count provided, so that novel topology can be future. Further, an 81-level switched ladder using unidirectional bidirectional switches designed. Simulation work carried out Matlab/Simulink validate performance change resistive load impedance load. The output fed 110 V, 186.5 W single phase induction motor study characteristics, further speed control by varying input voltage results are presented.