Application Of Robust-Control To Sustained Oscillations In Power-Systems

    Authors

    Z. H. Qu; J. F. Dorsey; J. Bond;J. D. McCalley

    Comments

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    Abbreviated Journal Title

    IEEE Trans. Circuits Syst. I-Fundam. Theor. Appl.

    Keywords

    Multimachine; Engineering, Electrical & Electronic

    Abstract

    Transient control of the sustained oscillations that can occur after a major disturbance to a power system is investigated. A control scheme for an n-generator system is first developed using a classical machine model, and then extended to a machine model that includes governor/turbine dynamics. The proposed cntrol strategies are linear and require only local relative angle and velocity measurements for the classical model case, plus the measurement of mechanical power if governor/turbine dynamics are included. Using Lyapunov's direct method, the control is shown to be robust with respect to parameter and load variations, and topology changes in the power system. The overall power system is shown to be exponentially stable in the large so that any oscillation, anywhere in the system, can be damped efficiently. The results are obtained without any linearization of the power system model. Simulation results for the 39 Bus New England System demonstrate the effectiveness of the proposed control.

    Journal Title

    Ieee Transactions on Circuits and Systems I-Fundamental Theory and Applications

    Volume

    39

    Issue/Number

    6

    Publication Date

    1-1-1992

    Document Type

    Note

    Language

    English

    First Page

    470

    Last Page

    476

    WOS Identifier

    WOS:A1992JE07800008

    ISSN

    1057-7122

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