Controlled transition full-bridge hybrid multilevel converter with chain-links of full-bridge cells

Li, Peng and Adam, Grain Philip and Holliday, Derrick and Williams, Barry (2017) Controlled transition full-bridge hybrid multilevel converter with chain-links of full-bridge cells. IEEE Transactions on Power Electronics, 32 (1). pp. 23-38. ISSN 0885-8993 (https://doi.org/10.1109/TPEL.2016.2523598)

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Abstract

This paper proposes a controlled transition full-bridge (CTFB) hybrid multilevel converter (HMC) for medium and high voltage applications. It employs a full-bridge cell chain-link (FB-CL) between the two legs in each phase to generate multilevel bipolar output voltage. The CTFB-HMC has twice dc voltage utilization or power density of conventional converters due to the bipolar capability of its full-bridge configuration. Hence, for the same power rating and same voltage level number, its total cells per phase are quarter that in modular multilevel converter (MMC), which reduces the hardware installation volume. Also, in the proposed converter, the total device number in the conduction paths is the same as in the half-bridge MMC, leading to low conduction losses. The FB-CL current of the CTFB converter has no dc component, which offers the potential to enhance the transient response. Comparative studies between the CTFB and other multilevel topologies are carried out to clarify its main features. The modulation strategies and parameter sizing of the proposed converter are investigated using a generic case. Simulation and experimental results are used to verify the effectiveness of the proposed approach.

ORCID iDs

Li, Peng ORCID logoORCID: https://orcid.org/0000-0003-3865-2998, Adam, Grain Philip ORCID logoORCID: https://orcid.org/0000-0002-1263-9771, Holliday, Derrick ORCID logoORCID: https://orcid.org/0000-0002-6561-4535 and Williams, Barry;
  • Item type:Article
    ID code:56068
    Dates:
    Date
    Event
    1 January 2017
    Published
    29 January 2016
    Published Online
    25 January 2016
    Accepted
    Notes:This paper is a post-print of a paper submitted to and accepted for publication in IEEE Transactions on Power Electronics and is subject to Institution of Electrical and Electronic Engineering Copyright. The copy of record is available at IEEE Explorer Digital Library
    Subjects:Science > Physics
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:05 Apr 2016 07:11
    Last modified:11 Nov 2024 11:23
    URI:https://strathprints.strath.ac.uk/id/eprint/56068
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