Output feedback TCSC controller design making use of linear matrix inequality

Masachika Ishimaru*, Nastuko Okada, Ryuichi Yokoyama, Goro Shirai

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    2 Citations (Scopus)


    Power system stabilizing control plays an important role to remain in synchronism during major disturbances resulting from sudden or sustained load changes. TCSC (Thyristor Controlled Series Capacitor) is one of the representative devices of FACTS (Flexible AC Transmission System). In this paper, a design method for output feedback TCSC controller using detailed model has been applied to suppress system disturbances in large-scale power systems. As the methodology of robust controller design, H control has been adopted. Currently, LMI (Linear Matrix Inequality) is very effective, since it solves the Lyapunov inequality without considering the weighting coefficients used in other control theories. In the proposed approach, the load change is treated as a system uncertainty in the LMI approach. The proposed LMI-based approach is proved to be applicable for the design of TCSC controllers to enhance robustness and response by simulations on a test system.

    Original languageEnglish
    Title of host publicationProceedings of the IEEE Power Engineering Society Transmission and Distribution Conference
    Number of pages6
    Publication statusPublished - 2000
    EventProceedings of the 2000 Power Engineering Society Summer Meeting - Seattle, WA
    Duration: 2000 Jul 162000 Jul 20


    OtherProceedings of the 2000 Power Engineering Society Summer Meeting
    CitySeattle, WA


    • FACTS
    • H-infinity control
    • Linear matrix inequality
    • Output feedback
    • Pole area constraints
    • Power system control
    • Robust stability
    • TCSC
    • Transient stability

    ASJC Scopus subject areas

    • General Engineering
    • General Energy


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