Pre-charging and DC fault ride-through of hybrid MMC based HVDC systems

Zeng, Rong and Xu, Lie and Yao, Liangzhong and Morrow, D John (2015) Pre-charging and DC fault ride-through of hybrid MMC based HVDC systems. IEEE Transactions on Power Delivery. ISSN 0885-8977 (https://doi.org/10.1109/TPWRD.2014.2360042)

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Abstract

Compared to half-bridge based MMCs, full-bridge based systems have the advantage of blocking dc fault, but at the expense of increased power semiconductors and power losses. In view of the relationships among ac/dc voltages and currents in full-bridge based MMC with the negative voltage state, this paper provides a detailed analysis on the link between capacitor voltage variation and the maximum modulation index. A hybrid MMC, consisting of mixed half-bridge and full-bridge circuits to combine their respective advantages is investigated in terms of its pre-charging process and transient dc fault ride-through capability. Simulation and experiment results demonstrate the feasibility and validity of the proposed strategy for a full-bridge based MMC and the hybrid MMC.

  • Item type:Article
    ID code:51164
    Dates:
    Date
    Event
    2015
    Published
    24 September 2014
    Published Online
    19 September 2014
    Accepted
    Notes:(c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, 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 components 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:19 Jan 2015 16:33
    Last modified:21 Apr 2024 00:23
    URI:https://strathprints.strath.ac.uk/id/eprint/51164
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