Quasi-decentralized functional observers for the LFC of interconnected power systems

H.M. Trinh, Tyrone Fernando, Herbert Iu, Kitpo Wong

    Research output: Contribution to journalArticlepeer-review

    32 Citations (Scopus)


    This letter presents a novel approach to the load-frequency control (LFC) of interconnected power systems. Based on functional observers theory, quasi-decentralized functional observers (QDFOs) are designed to implement any given global PI state feedback controller. The designed functional observers are decoupled from each other and also of low-order; thus, they are cost effective and easy to implement. Although the proposed approach is applicable to $N-$ area power systems, an example of a two-area interconnected power system with reheat thermal turbines is considered for simplicity. © 1969-2012 IEEE.
    Original languageEnglish
    Pages (from-to)3513-3514
    JournalIEEE Transactions on Power Systems
    Issue number3
    Publication statusPublished - 2013


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