Oghorada,, OJK, Zhang, L, Efika, IB et al. (1 more author) (2019) Control of Modular Multilevel Converters Using an Overlapping Multi-Hexagon Space Vector Modulation Scheme. IEEE Journal of Emerging and Selected Topics in Power Electronics, 7 (1). pp. 381-391. ISSN 2168-6777
Abstract
This paper introduces a novel space vector modulation scheme that can be applied for the control of modular multilevel cascaded converters (MMCCs) with any number of levels. This is achieved by using basic two-level or three-level hexagons to determine the switch states and the duty cycles separately within one tier of the converter which is a cascade of three-level H -bridge, five-level flying capacitor, or neutral point-clamped inverters. Many such hexagons can be overlapped, with phase shift relative to each other, for the control of a complete MMCC, instead of extending a single hexagon to regions corresponding to the number of levels. This approach simplifies the modulation algorithm and brings flexibility in shaping the output voltage waveforms. Also, this proposed method achieves good waveform quality at low switching frequency, hence resulting in low switching losses. Simulation and experimental results are presented to verify the advantageous features of the method.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018, IEEE. This is an author produced version of a paper published in IEEE Journal of Emerging and Selected Topics in Power Electronics. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Uploaded in accordance with the publisher’s self-archiving policy. |
Keywords: | Modular Multilevel Cascade Converters; Space vector modulation |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Institute of Communication & Power Networks (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 19 Mar 2018 15:27 |
Last Modified: | 23 Apr 2020 10:25 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/JESTPE.2018.2812865 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:128594 |