NDLI: Optimised modulation technique for three-phase differential multilevel converters with fundamental frequency switching strategy

Content Provider	IET Digital Library
Author	Mojibian, Mohammad Jafar Bina, Mohammad Tavakoli
Abstract	In recent years, various modulation techniques have been introduced for different topologies of multilevel converters; every technique has its own advantages as well as disadvantages in practice. This study presents a new optimised variable offset modulation technique for differential multilevel converters that is based on using the concept of optimised offset in a simple buck converter. This modulation technique with achievement to full DC utilisation reduces switching losses. The resultant switching pulses reduce the switching power losses for multilevel converters compared with the conventional techniques. To evaluate the suggested method, the optimised offset has been compared with three conventional modulation techniques. All four modulation techniques are implemented on a reduced structure 16-level converter with fundamental frequency switching strategy. Comparative analysis for the experiments confirms the capability of the presented technique in efficiency enhancement as well as high quality of the output voltage and loss reduction.
Starting Page	2471
Ending Page	2481
Page Count	11
ISSN	17554535
Volume Number	9
e-ISSN	17554543
Issue Number	Issue 13, Oct (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/9/13
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2015.0447
Journal	IET Power Electronics
Publisher Date	2016-10-26
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Buck Converter Fundamental Frequency Switching Strategy Modulation Optimised Variable Offset Modulation Technique Power Converter Power Supplies to Apparatus Reduced Structure 16-level Converter Switching Converter Switching Loss Reduction Three Phase Differential Multilevel Converter
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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