NDLI: Single-phase ac–dc–ac multilevel five-leg converter

Content Provider	IET Digital Library
Author	Maia, Ayslan Caisson Norões Jacobina, Cursino Brandão
Abstract	In this study, a multilevel five-leg single-phase ac–dc–ac converter and its generalisation are presented. The converter is suitable to be used as an uninterrupted power supply or a unified power quality conditioner without an isolation transformer. The operating principles, the pulse-width modulation strategy and the control system for the proposed converter are presented. The proposed single-phase multilevel ac–dc–ac converter is composed mostly of low-power switches capable of generating input and output voltages with low harmonic content. The proposed configuration is compared with the conventional solution in terms of harmonic distortion, semiconductor losses and ratings of switches. Experimental results demonstrate the feasibility of the proposed configuration. The experimental verification of the proposed topology and control strategy was obtained by using IGBTs with dedicated drives and a digital signal processor TMS320F28335 with plug-in boards and sensors.
Starting Page	2733
Ending Page	2742
Page Count	10
ISSN	17554535
Volume Number	7
e-ISSN	17554543
Issue Number	Issue 11, Nov (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/7/11
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2013.0833
Journal	IET Power Electronics
Publisher Date	2014-08-12
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	AC-DC Power Converter Control of Electric Power System Control Strategy Control System Current Control DC-AC Power Converter Digital Signal Processor Electric Current Control Harmonic Content Harmonic Distortion Harmonics IGBT Isolation Transformer Low Power Electronics Low-power Switches Multilevel Five-leg Converter Plug-in Boards Power Conversion Harmonics Power Electronics Power Supply Power Supply Quality Power System Control Pulse-width Modulation Strategy PWM Power Converter Semiconductor Loss Single-phase AC–DC–AC Converter Supervisory Circuit Switched Mode Converter TMS320F28335 Unified Power Quality Conditioner Uninterrupted Power Supply Voltage Control
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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