Comparison of reduced part count multilevel inverters (RPC-MLIs) for integration to the grid

Multilevel inverters (MLIs) have been developed to a matured level for generating high quality output voltage, used in numerous applications. Conventional MLIs has been received more attention due to their remarkable use in medium-voltage applications. But use of high number of part counts in conventional MLIs increase the intricacy of circuitry and controlling both results in high expenses and reduced reliability. Therefore, development of newer topologies is an active attention to reduce part count compared to the conventional MLIs. This paper presents an exhaustive review of recently proposed reduced part count MLIs for grid integration application on the basis of selection of components, comparative factors and their suitability. It is aimed at presenting a state of the art on configuration, working and their features to researchers, inventors, and application engineers dealing with multilevel inverters.