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  • Optimal feedback path selection for interconnected power systems using load frequency control strategy

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    Hossain484325-Published.pdf (2.466Mb)
    File version
    Version of Record (VoR)
    Author(s)
    Chowdhury, A Hasib
    Rahman, Md Mijanur
    Hossain, Md Alamgir
    Griffith University Author(s)
    Hossain, Md. Alamgir
    Year published
    2020
    Metadata
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    Abstract
    The main goal of an interconnected power system is to transfer power from one area to another while the network frequency and tie-line flow remain within the prescribed limits. However, both of these quantities may violate their desired values during this transfer due to disturbances in the network. This paper proposes a stratagem for choosing the right feedback path for an interconnected power system to maintain the system frequency and tie-line flows within the prescribed limits while external disturbances exist. Area control error (ACE), a combination of frequency error and tie-flow deviations, is used as the performance ...
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    The main goal of an interconnected power system is to transfer power from one area to another while the network frequency and tie-line flow remain within the prescribed limits. However, both of these quantities may violate their desired values during this transfer due to disturbances in the network. This paper proposes a stratagem for choosing the right feedback path for an interconnected power system to maintain the system frequency and tie-line flows within the prescribed limits while external disturbances exist. Area control error (ACE), a combination of frequency error and tie-flow deviations, is used as the performance indicator. In the proposed approach, feedback control is designed using active disturbance rejection controller (ADRC) based load frequency control to tackle ACE. It is observed that the individual load change monitoring is sufficient for selecting the right feedback paths rather than the consideration of simultaneous load changes of all load centres. The effectiveness of the proposed controller for selecting the feedback paths has been tested by conducting several case studies. The results demonstrate that the proposed controller can reduce transient magnitude around 57% for ACE, 55% for frequency error and 72% for tie-line error as compared to the PID controller.
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    Journal Title
    IET Generation, Transmission & Distribution
    Volume
    15
    Issue
    4
    DOI
    https://doi.org/10.1049/gtd2.12047
    Copyright Statement
    © 2020 The Authors. IET Generation, Transmission & Distribution published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
    Subject
    Electrical engineering
    Nanotechnology
    Science & Technology
    Engineering
    Publication URI
    http://hdl.handle.net/10072/404249
    Collection
    • Journal articles

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