A T-type modular multilevel converter

Wang, Shuren and Massoud, Ahmed M. and Williams, Barry W. (2021) A T-type modular multilevel converter. IEEE Journal of Emerging and Selected Topics in Power Electronics, 9 (1). pp. 843-857. ISSN 2168-6777 (https://doi.org/10.1109/JESTPE.2019.2953007)

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Abstract

This article proposes a novel modular multilevel converter (MMC) named 'T-type MMC' (T-MMC) for reliable, controllable, and efficient performance in energy conversion applications. Circuitry configurations and control structures are presented with respect to fundamental and additional functions. The T-MMC topology consists of two solid-state power stages (Stage-I and Stage-II), which are coordinated for ac and dc fault tolerance and increased ac-side voltage synthesis. Energy storage elements can be integrated into the submodules. As a result, the T-MMC based energy storage system can not only increase system inertia but also maintain continuous power transmission during faults. A thyristor forced-commutation technique facilitates actively controlled utilization of symmetrical thyristors in the conduction path; thus, T-MMC normal-mode operation losses can be equivalent to those of the conventional half-bridge MMC. Simulation and experimentation demonstrate the performance of the T-MMC.

  • Item type:Article
    ID code:71205
    Dates:
    Date
    Event
    28 February 2021
    Published
    11 November 2019
    Published Online
    3 November 2019
    Accepted
    Notes:© 2020 IEEE. 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.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:24 Jan 2020 16:08
    Last modified:15 Apr 2024 13:41
    URI:https://strathprints.strath.ac.uk/id/eprint/71205
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