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Robust Performance and Observer Based Control for Periodic Discrete-Time Uncertain Systems

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  • Natália A. Keles
  • Márcio J. Lacerda
  • Cristiano M. Agulhari

Abstract

This paper presents an approach for the synthesis of observer-based controllers for discrete-time periodic linear systems. The performance criterion has been employed to design both the observer and the controller. For the periodic observer design, two conditions in the form of Linear Matrix Inequalities (LMIs) are proposed, which stem from the Lyapunov Theory applied over the dynamics of the estimation error. The LMI condition obtained for the periodic state-feedback controller results from the application of the duality principle over the periodic system, under the assumption that only the estimated states are available to be used in the state-feedback compensation. Numerical experiments illustrate the potential of the proposed observer-based control technique.

Suggested Citation

  • Natália A. Keles & Márcio J. Lacerda & Cristiano M. Agulhari, 2019. "Robust Performance and Observer Based Control for Periodic Discrete-Time Uncertain Systems," Mathematical Problems in Engineering, Hindawi, vol. 2019, pages 1-9, February.
    • Handle: RePEc:hin:jnlmpe:5851739
    DOI: 10.1155/2019/5851739
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