Operation and control of dg based power island in smart grid environment

S. Chowdhury, C. F. Ten, P. A. Crossley

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    Abstract

    This paper presents a simulation study of operation and control of distributed generators (DGs) in power islands in Smart Grid environment. It examines the technical feasibility of DG islanding operation to exploit their services for improving electrical safety, security and quality of energy supply. The grid-connected DGs are initially operated at PQ mode and then switched to V-f mode to have full controllability of bus frequency and voltage when operated as independent power island. Suitable controllers are designed separately for individual control of voltage and frequency at the DG bus. The simulation results are validated through several case studies using DIgSILENT software for both intentional and unintentional loss of grid (LOG) situations. It has been observed that when several islanded DGs are interconnected to form a power island, they can share the active and reactive power demands of the island leading to quick restoration of the system voltage and frequency within permissible bandwidth.
    Original languageEnglish
    Title of host publicationIET Conference Publications|IET Conf Publ
    DOIs
    Publication statusPublished - 2009
    Event20th International Conference and Exhibition on Electricity Distribution, CIRED 2009 - Prague
    Duration: 1 Jul 2009 → …
    http://www.cired.be/CIRED09/pdfs/CIRED2009_0856_Paper.pdf

    Conference

    Conference20th International Conference and Exhibition on Electricity Distribution, CIRED 2009
    CityPrague
    Period1/07/09 → …
    Internet address

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