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    A Multimode Supervisory Control Scheme for Coupling Remote Droop-Regulated Microgrids

    73429.pdf (1.102Mb)
    Access Status
    Open access
    Authors
    Pashajavid, Ehsan
    Ghosh, Arindam
    Zare, Firuz
    Date
    2018
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Pashajavid, E. and Ghosh, A. and Zare, F. 2018. A Multimode Supervisory Control Scheme for Coupling Remote Droop-Regulated Microgrids. IEEE Transactions on Smart Grid. 9 (5): pp. 5381-5392.
    Source Title
    IEEE Transactions on Smart Grid
    DOI
    10.1109/TSG.2017.2688475
    ISSN
    1949-3053
    School
    School of Electrical Engineering, Computing and Mathematical Science (EECMS)
    Remarks

    © 2018 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/20.500.11937/73186
    Collection
    • Curtin Research Publications
    Abstract

    This paper proposes a supervisory control scheme to facilitate coupling of remote droop-regulated microgrids (MGs) during power shortfalls. In this scheme, instead of power converters, an instantaneous static switch is incorporated for the interconnection. Therefore a supervisory controller is essential to cope with the associated challenges, which are: 1) the level of supporting power provided by the neighboring MG and 2) isolation procedure of the coupled MGs (CMG) when the power deficiency condition is removed. Droop coefficients of distributed generators of the overloaded MG are dynamically updated by the controller according to the three operating modes defined to address the aforementioned challenges. The transit criteria, as well as the controlling signals, are accurately formulated based only on the local measurements to decrease the dependency on the communication systems. This enhances the reliability level of the coupled system. Effectiveness of the proposed strategy is validated through the results obtained from PSCAD/EMTDC simulations. Also, small-signal stability of the CMG operated by the proposed controller is examined using a developed model in MATLAB.

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