Non-unit distance protection algorithm for multiterminal MMC-HVDC systems using DC capacitor resonance frequency

Lacerda, Vinicius and Monaro, Renato Machado and Peña Alzola, Rafael and Campos-Gaona, David and Coury, Denis Vinicius (2022) Non-unit distance protection algorithm for multiterminal MMC-HVDC systems using DC capacitor resonance frequency. IEEE Transactions on Industrial Electronics, 69 (12). pp. 12924-12933. ISSN 0278-0046 (https://doi.org/10.1109/TIE.2021.3139245)

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Abstract

High-voltage dc (HVdc) transmission has been largely used to interconnect asynchronous systems and integrate renewable energy resources into electrical grids. However, the high short-circuit currents and low-tolerance of power electronics equipment impose new challenges for these systems' protection. To address these challenges, a new distance protection algorithm for HVdc grids with modular multilevel converters (MMCs) is proposed in this article. The proposed algorithm identifies the faulty line/cable using the resonance frequency of a dc capacitor installed in each terminal. The technique was tested in a four-terminal HVdc grid with five cables and ten circuit breakers. The algorithm was highly selective for faults in the lines and provided fast identification, in less than 1 ms, without communication amongst terminals. The algorithm was tested in hardware under high-noise conditions and provided reliable results.

  • Item type:Article
    ID code:79609
    Dates:
    Date
    Event
    1 December 2022
    Published
    6 January 2022
    Published Online
    17 December 2021
    Accepted
    Notes:© 2022 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:15 Feb 2022 13:51
    Last modified:18 Apr 2024 00:30
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/79609
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