Submodule configuration of HVDC-DC auto transformer considering DC fault

Suo, Zhiwen and Li, Gengyin and Li, Rui and Xu, Lie and Wang, Weisheng and Chi, Yongning and Sun, Wei (2016) Submodule configuration of HVDC-DC auto transformer considering DC fault. IET Power Electronics. pp. 1-24. ISSN 1755-4535 (In Press)

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    Abstract

    This paper studies the submodule configuration of MMC based non-isolated HVDC-DC autotransformer (HVDC-AT) with DC fault blocking capability, including two-terminal and multi-terminal topologies. The operation principle of the HVDC-AT is described. Considering the arm current differences, the total number of required semiconductors for the HVDC-AT is derived and is compared with the MMC based isolated front-to-front (F2F) DC transformer. A full operation process for the multi-terminal HVDC-AT considering DC fault is then presented, including normal operation, fault isolation and continuous operation of healthy converters after fault. The submodule configuration and fault recovery of the multi-terminal HVDC-AT are validated by simulations using PSCAD/EMTDC.

    Author(s):Suo, Zhiwen, Li, Gengyin, Li, Rui ORCID: https://orcid.org/0000-0001-8990-7546, Xu, Lie ORCID: https://orcid.org/0000-0001-5633-7866, Wang, Weisheng, Chi, Yongning and Sun, Wei
    Item type:Article
    ID code:57504
    Keywords:renewable energy, HVDC technology, offshore wind power, modular multilevel converter, Electrical engineering. Electronics Nuclear engineering, Environmental engineering, Renewable Energy, Sustainability and the Environment, Energy Engineering and Power Technology
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Technology > Engineering (General). Civil engineering (General) > Environmental engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:23 Aug 2016 08:49
    Last modified:20 Aug 2019 01:42
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/57504
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