A three-level flying capacitor inverter and cascaded H-bridge modules with float in capacitors have been proposed to generate 17 voltage levels. The current study discusses several features of the suggested inverter, such as capacitor voltage balancing. The simulation results are presented in order to investigate the performance of the suggested converter. The capacitor balancing algorithm's stability has been demonstrated during both transient and steady-state operation. Using one of the pole voltage combinations, all of the capacitors in this circuit can be instantly balanced. Another feature of this design is its ability to generate all voltages from a single dc-link power supply, allowing for back-to-back converter operation. Furthermore, the proposed inverter is capable of operating at all load power factors and modulation indices. Another benefit is that if one of the H-bridges fails, the inverter can still work at full load with a decreased number of levels. The dv/dt and common-mode voltage variations in this setup are quite minimal.

multilevel inverters, dc-link capacitor, PWM, space vector PWM