Design of a modular, high step-up ratio DC–DC converter for HVDC applications integrating offshore wind power

Hu, Yihua and Zeng, Rong and Cao, Wenping and Zhang, Jiangfeng and Finney, Stephen J. (2015) Design of a modular, high step-up ratio DC–DC converter for HVDC applications integrating offshore wind power. IEEE Transactions on Industrial Electronics. ISSN 0278-0046 (https://doi.org/10.1109/TIE.2015.2510975)

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Abstract

High power and high voltage gain DC-DC converters are key to high-voltage DC (HVDC) power transmission for offshore wind power. This paper presents an isolated ultra-high step-up DC-DC converter in matrix transformer configuration. A flyback-forward converter is adopted as the power cell and the secondary side matrix connection is introduced to increase the power level and to improve fault tolerance. Because of the modular structure of the converter, the stress on the switching devices is decreased and so is the transformer size. The proposed topology can be operated in column interleaved modes, row interleaved modes and hybrid working modes in order to deal with the varying energy from the wind farm. Furthermore, fault tolerant operation is also realized in several fault scenarios. A 400-W DC-DC converter with four cells is developed and experimentally tested to validate the proposed technique, which can be applied to high-power high-voltage DC power transmission.

ORCID iDs

Hu, Yihua, Zeng, Rong, Cao, Wenping, Zhang, Jiangfeng and Finney, Stephen J. ORCID logoORCID: https://orcid.org/0000-0001-5039-3533;
  • Item type:Article
    ID code:55398
    Dates:
    Date
    Event
    22 December 2015
    Published
    22 December 2015
    Published Online
    7 November 2015
    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:28 Jan 2016 16:37
    Last modified:11 Nov 2024 11:18
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/55398
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