Topology of modified switched-capacitor Z-source inverters with improved boost capability

This paper proposes a new topology named a modified switched-capacitor Z-source inverter (MSC-ZSI) based on the classical ZSI, in which an impedance network consists of symmetric two cells and each cell has two inductors and two capacitors, and one diode. In comparison to the other topologies based on switched ZSI, the proposed topology provides higher boost capability and lower voltage stress across switching devices. The improved performances of proposed topology are validated by both the simulation and experimental results.