Five-Level Inverter with Zero Volt Not Connected (ZVNC) for Medium Power: Analysis of Operating Mode

摘要

In comparison with to the structure of the five-level NPP (Neutral Point Piloted) inverter, the studied topology has two less power transistors. The midpoints of bus bar DC voltage and the arms of the inverter are not connected. The balancing of the flying capacitances voltages involves an integrated control strategy.