Adaptive distance protection for lines connecting converter-interfaced renewable plants

Paladhi, Subhadeep and Pradhan, Ashok Kumar (2021) Adaptive distance protection for lines connecting converter-interfaced renewable plants. IEEE Journal of Emerging and Selected Topics in Power Electronics, 9 (6). 7088 - 7098. ISSN 2168-6777 (https://doi.org/10.1109/JESTPE.2020.3000276)

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Abstract

Fault ride through compliance as imposed by grid codes prevents undesirable disconnection of renewable plants from the network even during fault. Diversified control schemes adopted in the converters associated with such plants modulate the voltage and current output significantly during a fault. This varies the fault characteristics of the renewable plant at times and thereby affects the performance of the distance relay protecting lines connected to such plants. In this article, a distance protection method using local data is proposed for transmission lines connecting renewable plants. The proposed method calculates the phase angle of faulted loop current by determining the pure-fault impedance of the renewable plant at every instant following fault detection, irrespective of the control scheme associated with the plant. Utilizing the information, it calculates the line impedance up to fault point accurately. Performance of the proposed adaptive protection method is tested on renewable-integrated modified 39-bus New England system using PSCAD/EMTDC simulated data and found to be accurate. Comparative assessment with the conventional distance relaying technique reveals its superiority.

  • Item type:Article
    ID code:76145
    Dates:
    Date
    Event
    31 December 2021
    Published
    5 June 2020
    Published Online
    5 June 2020
    Accepted
    Notes:© 2020 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:19 Apr 2021 14:00
    Last modified:20 Apr 2024 00:44
    URI:https://strathprints.strath.ac.uk/id/eprint/76145
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