A dual two-level inverter with a single source for open end winding induction motor drive application

This paper describes a dual inverter motor drive topology using a single supply for open winding induction machine. The paper considers the possibilities of using a dual bridge inverter with one bridge inverter floating, this will allow achieving multilevel voltage output. The charging and discharging of the floating capacitor can be controlled using the redundant switching states. The use of this topology can improve the system weight and volume. The paper includes analysis and modulation of the converter topology as well as simulation and experimental results.