Accurate superimposed component estimation for improved relay performance during power swing

Paladhi, Subhadeep and Pradhan, Ashok Kumar and Rao, J. Ganeswara (2022) Accurate superimposed component estimation for improved relay performance during power swing. IEEE Systems Journal. pp. 1-11. ISSN 1932-8184 (https://doi.org/10.1109/JSYST.2021.3138758)

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Abstract

There is continuous variation in amplitude, phase, and frequency of voltage and current signals during power swing in a power system. Such variation makes the memorized prefault data less accurate to be used as nonfault component while computing superimposed quantity for protection decisions during power swing. In this article, the voltage and current signal characteristics during power swing are analyzed and a technique is proposed to obtain correct nonfault components for superimposed quantity computation. The accuracy of the method in estimating the nonfault components is observed for different power swing conditions simulated in a 39-bus New England system and field data. The relay performance improvement as observed is also provided while applying the method to directional relaying, fault type classification, and fault location applications for faults during power swing. Comparative assessment reveals the superiority of the proposed method in improving the accuracy of the superimposed components computed during power swing.

  • Item type:Article
    ID code:79263
    Dates:
    Date
    Event
    20 January 2022
    Published
    20 January 2022
    Published Online
    22 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:25 Jan 2022 10:31
    Last modified:09 Apr 2024 02:59
    URI:https://strathprints.strath.ac.uk/id/eprint/79263
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