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    Overload management of autonomous microgrids

    Access Status
    Fulltext not available
    Authors
    Pashajavid, E.
    Shahnia, Farhad
    Ghosh, Arindam
    Date
    2015
    Type
    Conference Paper
    
    Metadata
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    Citation
    Pashajavid, E. and Shahnia, F. and Ghosh, A. 2015. Overload management of autonomous microgrids, in Proceedings of the International Conference on Power Electronics and Drive Systems, pp. 73-78.
    Source Title
    Proceedings of the International Conference on Power Electronics and Drive Systems
    DOI
    10.1109/PEDS.2015.7203515
    ISBN
    9781479944033
    School
    Department of Electrical and Computer Engineering
    URI
    http://hdl.handle.net/20.500.11937/18748
    Collection
    • Curtin Research Publications
    Abstract

    Load-shedding is a mechanism to prevent overloading of the autonomous microgrids (MG). To minimize loadshedding, extra support can be provided by the embedded floating batteries in the autonomous MG. Furthermore, two islanded neighboring MGs can be interconnected to support each other. For this, the state of charge (SOC) of the floating batteries should be above the minimum SOC and extra generation capacity needs to be available in the distributed energy resources (DER) of the neighboring MG. In this paper an overload management strategy based on these two options is presented. This strategy needs to decide the connection time of the floating batteries as well as the interconnection time of the two neighboring MGs. It should also decide when the battery to be disconnected or the two interconnected MGs to be isolated. This paper focuses on a decentralized approach based on monitoring the frequencies of the MGs. The proposed strategy is validated by PSCAD/EMTDC simulations.

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