Nested Multilevel Topologies

This paper proposes multilevel topologies based on the concept of nested arrangement. Such topologies are called nested multilevel converters, since the central point of the legs are connected at the same point, with the external legs involving the internal ones. Nested configurations present advant...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on power electronics 2015-08, Vol.30 (8), p.4058-4068
Main Authors: Cipriano Dos Santos, Euzeli, Gonzaga Muniz, Joao Helder, Cabral da Silva, Edison Roberto, Jacobina, Cursino Brandao
Format: Article
Language:English
Subjects:
Converters
Diodes
Electrical equipment
Electronics
Equivalence
Experiments
Inverters
Lead
Legs
Multilevel
Pulse duration modulation
Pulse width modulation
Simulation
Strategy
Switches
Topology
Vectors
Voltage
Waveform analysis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper proposes multilevel topologies based on the concept of nested arrangement. Such topologies are called nested multilevel converters, since the central point of the legs are connected at the same point, with the external legs involving the internal ones. Nested configurations present advantages as compared to the equivalent NPC topologies in terms of reduced number of diodes and consequently higher efficiency. In addition to proposing a new family of power electronics converters, this paper presents an optimized pulse width modulation strategy that allows synthesizing voltage waveforms with higher quality, a losses comparison with the NPC topology, and a general comparison with other topologies proposed in the technical literature. Simulated and experimental results are presented to validate the theoretical expectations.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2014.2351392