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Recent research on multilevel inverters shows exciting properties, includingthe potential to generate multiple output voltages and integrated voltageboosting. However, most presented inverter topologies have a restricted numberof output voltage levels and limited output voltage boosting ratio. Inaddition, balancing the voltage of capacitors in multilevel converters is veryimportant and should be considered in the topology or control method. Thispaper describes a generalized switched-capacitor circuit topology formultilevel dc-to-ac inverters that can be developed for the desired outputvoltage levels. Also, the maximum ac output voltage can vary from values muchlower than the dc input voltage to several times of it depending on the designrequirement. High-voltage dc input and ac output could be handled usinglow-voltage capacitors, which substantially decreases overall cost and volume.The proposed topology further allows for easy expansion through stackablecircuits for multiple load phases. It has an inherent capacity for balancingthe voltage of capacitors. To validate the feasibility and practicality of thisconcept, we provide circuit descriptions, control strategies, designrecommendations, and pertinent simulation findings for the suggested invertertopology.

A Generalized Switched-Capacitor Modular Multilevel Inverter Topology  for Multiphase Electrical Machines with Capacitor-Voltage Self-Balancing  Capability