This paper gives an overview of medium-voltage (MV) multilevel converters with a focus on
achieving minimum harmonic distortion and high efficiency at low switching frequency …

The neutral-point (NP) potential of the three-level neutral-point-clamped converters is
needed to maintain balancing. Zero-sequence voltage is the only freedom degree when …

A new topology for a hybrid multilevel inverter will be presented, which significantly
increases the level number of the output waveform and thereby dramatically reduces the low …

The objective of the present work is to improve the output waveform of three level inverters
used in high-power applications, where the switching frequency is very low. This is achieved …

Three-level neutral point clamped (NPC) inverter is a widely used topology of multilevel
inverters. However, the neutral point fluctuates for certain switching states. At low modulation …

A significant problem with neutral-point-clamped three-level inverters is the fluctuation in the
neutral-point voltage. In this paper, a capacitor voltage balancing technique for carrier …

This paper presents an extensive comparative study between a two-and three-level inverter
for electric vehicle traction applications. An advanced control strategy for balancing the two …

This paper presents a transformerless hybrid active filter integrated into a medium-voltage
motor drive for energy savings. This hybrid filter is intended for line harmonic-current …

A new operational mode for diode-clamped multilevel inverters termed quasi two-level
operation is proposed. Such operation aims to avoid the imbalance problem of the dc-link …

Neutral point (NP) balancing problems in neutral-point-clamped (NPC) three-level inverters
have been widely discussed in the past. Most of the previous researches have focused on …