Single-Source Switched-Capacitor-Based Multilevel Inverter (S3CMLI) and Its Horizontal/Vertical Extension with Reduced Components

In this paper, a single-source switched-capacitor multilevel inverter (S3CMLI) and its horizontal, as well as vertical, extensions with reduced components are proposed. The proposed topology has nine levels among the double boosting output voltages. Commonly, the multilevel inverters are used to convert the DC–AC and achieve variable voltages and frequencies in AC power systems. Further, multilevel inverters are employed to boost the voltages in the green energy systems. The S3CMLI is a structure consisting of ten switches, nine driver signals and two flying capacitors. Every mode circuit will be connected by four/three switches. Using a hardware prototype, the system has been operated on dynamic conditions by changing to high inductive loads, variable frequencies and different modulation index and hence, the flexibility of the developed multilevel inverter has been demonstrated. The proposed inverter can be extended to horizontal and vertical structures and increase the levels and boost output voltages. The comprehensive comparisons with a few other similar MLIs configurations demonstrate better performance and the advantages of the S3CMLI.