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    A fully decentralized approach for mitigating destructive disturbances in isolating process of remote coupled microgrids

    250334.pdf (722.8Kb)
    Access Status
    Open access
    Authors
    Pashajavid, E.
    Ghosh, Arindam
    Date
    2016
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Pashajavid, E. and Ghosh, A. 2016. A fully decentralized approach for mitigating destructive disturbances in isolating process of remote coupled microgrids, in Proceedings of the Australasian Universities Power Engineering Conference (AUPEC), Sep 25-28 2016, pp. 499-504. Brisbane, Australia: IEEE.
    Source Title
    Proceedings of the 2016 Australasian Universities Power Engineering Conference, AUPEC 2016
    DOI
    10.1109/AUPEC.2016.7749355
    ISBN
    9781509014057
    School
    Department of Electrical and Computer Engineering
    Remarks

    © 20xx 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.

    URI
    http://hdl.handle.net/20.500.11937/50716
    Collection
    • Curtin Research Publications
    Abstract

    Coupling remote microgrids (MGs) is a promising technique to handle power deficiency in such systems. However, once the shortfall is removed, the coupled MGs (CMG) should isolate to carry on their operation autonomously. Due to the non-zero power still flowing through the tie-line, however, considerable voltage spikes may be imposed on the interconnecting static switch (ISS) during the isolation that may damage the device. This paper proposes a practical decentralized approach to efficiently alleviate the mentioned transients, facilitating a successful MG isolation procedure. Two auxiliary controllable loads (ACL) are to be considered at two sides of the ISS. When the necessity of applying the isolation action is detected, the ISS controller commands the ACL on the supporting MG side to connect. A droop-based scheme is formulated to derive the load should be demanded by the ACL such that the power passing through the ISS drops to zero, preventing any spikes across it at the opening moment. Once the isolation action is accomplished, the controller disconnects the ACL. Efficiency of the proposed algorithm is validated through various cases simulated using PSCAD/EMTDC.

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