摘要：This paper investigates a hybrid multilevel converter for an induction machine drive. It is
performed through the add of a 1-phase 3-levels FC-based leg to a. classical 3-phases 3-levels
NPC converter. The aim of the additional leg is to prouide NPC legs with an active neutral
point and, consequently, avoids the neutral point voltage unbalance issue. To ensure a balanced .
flying capacitor uoltage and a constant
neutral point， a strategy control of the FC leg is
developed and an appropriate LC filter is proposed. The converter is simulated feeding a 1. 5kW
induction machine. Experimental results of the converter feeding a 1.5k:W induction machine
show the effectiveness of the developed control of FC leg and the proposed topology.
