Title

Application Of Robust Control To Sustained Oscillations In Power Systems

Keywords

Exponential stability; Lyapunov stability; Power systems; Robustness; Transient control; Uncertainty

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 control 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.

Publication Date

1-1-1992

Publication Title

Proceedings of the 1st IEEE Conference on Control Applications, CCA 1992

Number of Pages

620-625

Document Type

Article; Proceedings Paper

Identifier

scopus

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/CCA.1992.269777

Socpus ID

85065828034 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85065828034

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