A controller for cascaded h-bridge multilevel inverter

The multilevel inverter technology has gained a tremendous significance in the research area. This paper proposed a new controller for generating the switching sequence of power devices used in multilevel inverter to produce the desired output. An embedded code has been developed to control the switching states of different IGBT switches. To validate the effectiveness of the proposed technique to control the multilevel inverter switching states MATLAB simulation of 3-level, 5-level and 17-level using cascaded H bridge topology of multi-level inverter is presented in this paper. Each multilevel inverter configuration presented in this paper is explained by the corresponding schematic diagram, operating principle, and simulation results