Z-source five leg inverter

摘要

In recent years, five leg inverter and nine switch inverter have been proposed. Those can independently control two three-phase loads. This paper proposes a novel structure for Five-Leg Inverter (FLI) named Z-source FLI. This inverter has ten switching devices and can independently control two three-phase loads with high voltage range. First, the construction of the Z-source FLI is introduced and then, PWM modulation method for the z-source FLI is elaborated. Consequently, it is shown with Z-source one can improve Voltage Utility Factor in FLI. In the end, the validity of the method is verified by simulations.