Three-Phase Four-Wire AC-DC-AC Converter With Shared Legs

This article proposes a three-phase four-wire ac-dc-ac converter with legs shared between grid and load sides. This topology is suitable for operation as uninterruptible power supply and unified power quality conditioner. Also, two scenarios of the converter are considered, first, load and grid volt...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on industry applications 2021-07, Vol.57 (4), p.3911-3922
Main Authors: Felinto, Alan Santana, Jacobina, Cursino Brandao, Fabricio, Edgard Luiz Lopes, Lacerda, Rodrigo Pereira de
Format: Article
Language:English
Subjects:
AC-AC converters
Amplitudes
Conduction losses
Electric converters
Electric potential
Electric power supplies
Harmonic distortion
Inductors
Legged locomotion
Load modeling
power conditioning
Pulse duration
Pulse width modulation
Topology
uninterrupted power systems
Uninterruptible power supplies
Uninterruptible power systems
Voltage
Voltage control
Wire
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 article proposes a three-phase four-wire ac-dc-ac converter with legs shared between grid and load sides. This topology is suitable for operation as uninterruptible power supply and unified power quality conditioner. Also, two scenarios of the converter are considered, first, load and grid voltages with same amplitude with possibility to compensate grid-voltage swells, and second, grid voltage with twice the amplitude of load. Converter model, pulsewidth modulation, control strategies, and passive elements design are developed. Comparisons between conventional and proposed topologies in terms of harmonic distortion and semiconductor losses are carried out. The proposed converter is suitable for operation in low-voltage high-power applications, presenting lower conduction losses than the considered conventional topologies.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2021.3081403