An Overview of Main Multilevel Inverter Topologies

A review of existing topologies of multilevel inverters with a different number of levels is presented, distinctive features are highlighted, and advantages and disadvantages of various topologies are considered, taking into account design features. Using the example of elementary converters, various cascading methods are considered to increase the number of levels. Examples of use and benefits from implementation are given. The main families of topologies are distinguished, and the key features—the advantages and disadvantages of each family—are revealed.