Decentralised control of DC microgrid based on virtual admittance to enhance DC voltage and grid frequency support

Yana, Syiska and Florida James, Anthony and Emhemed, Abdullah and Burt, Graeme; (2018) Decentralised control of DC microgrid based on virtual admittance to enhance DC voltage and grid frequency support. In: 2018 53rd International Universities Power Engineering Conference (UPEC). IEEE, GBR. ISBN 9781538629109 (https://doi.org/10.1109/UPEC.2018.8541863)

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Abstract

DC microgrid technology has become one of key smart grid research topics in recent years. In comparison to AC microgrids, DC microgrids are more manageable to operate in grid-connected and islanded modes, and also offering improved efficiency and better controllability. Services, such as voltages and AC system frequency support can also be potentially provided by optimally controlling the DC microgrids converter interfaces and their local distributed energy resources. These will require a good understanding of the dynamic interactions between the DC microgrid and the host AC system, and implementation of the appropriate control strategies. This paper investigates the dynamic resilience of a DC microgrid connected to an AC system under different frequency and voltage disturbances. A decentralised droop control strategy within the DC microgrid is used for fast active power control and wider system frequency support. A virtual admittance method is also utilised to enhance the local DC microgrid voltages during the AC frequency events and DC fault test scenarios. The effectiveness of the control strategy is evaluated by simulation studies in MATLAB/Simulink.

  • Item type:Book Section
    ID code:64688
    Dates:
    Date
    Event
    13 December 2018
    Published
    27 June 2018
    Accepted
    Notes:© 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.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:04 Jul 2018 13:40
    Last modified:23 Apr 2024 00:04
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/64688
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