Multilevel converters have been under research and development for more than three
decades and have found successful industrial application. However, this is still a technology …

This paper presents a technology review of voltage-source-converter topologies for
industrial medium-voltage drives. In this highly active area, different converter topologies …

This work is devoted to review and analyze the most relevant characteristics of multilevel
converters, to motivate possible solutions, and to show that we are in a decisive instant in …

Multilevel converters are considered today as the state-of-the-art power-conversion systems
for high-power and power-quality demanding applications. This paper presents a tutorial on …

In three-phase unbalanced systems, where the circulation of zero sequence current is
necessary, four-leg converters provide a neutral connection for single-phase or other …

Rising demand for distributed generation based on renewable energy sources (RES) has
led to several issues in the operation of utility grids. The microgrid is a promising solution to …

In the last few years, interest in multiphase converter technology has increased due to the
benefits of using more than three phases in drive applications. Besides, multilevel converter …

The main objective of this paper is to simplify the implementation of continuous and
discontinuous 3-D space vector pulsewidth modulations (SVPWMs). This paper analyzes …

Arm voltage and submodule (SM) capacitor voltage balancing is a key factor for the safe and
reliable operation of modular multilevel converters (MMCs). The arm voltage balancing is …

This paper presents a novel modulation strategy for n-phase neutral-point-clamped (NPC)
converters. The proposed modulation strategy is able to control and completely remove the …