Abstract: Switched capacitor multilevel inverter (SCMLI) configuration for high-frequency medium voltage applications is presented. A 5L-SCMLI basic configuration is further extended to 9L operation with a reduced number of active switches having self voltage boosting and balancing ability. Further, the proposed 9L-SCMLI is extended up to n level being considered as the basic configuration for the extension of horizontal extension (HE) and vertical extension (VE). A generalized switching table is provided for the proposed extensions. Design of the size of capacitor demonstrated for the proposed 9L-SCMLI.

Abstract: A device, method, and non-transitory computer readable medium that determines a multilevel inverter circuitry comprising Nsource DC voltage sources and at least 2Nsource+5 controlled switching devices. The number of output voltage levels and the maximum output voltage of the multilevel inverter circuitry can be variable and depend on a trade-off among voltage rating of switches, variety of DC sources, and control strategy. A hybrid modulation scheme is employed to reduce the total harmonic distortions.