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Multicriteria Adaptive Observers for Singular Systems with Unknown Time-Varying Parameters

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  • Wookyong Kwon
  • Jaepil Ban
  • Soohee Han
  • Chong Soo Lee
  • Sangchul Won

Abstract

This paper proposes multicriteria adaptive observers for a class of singular systems with unknown time-varying parameters. Two criteria for the disturbance attenuation level and the upper bound of an ultimate invariant set are scalarized into a single cost function and then it is minimized by varying the weight parameter, which creates the optimal trade-off curve or Pareto optimal points. The proposed multicriteria adaptive observers are shown to be able to easily include integral action for better robust performance. It is demonstrated with numerical simulations that the proposed multicriteria adaptive observers provide the good estimation accuracy and allow effective and compromising design by considering two different cost functions simultaneously.

Suggested Citation

  • Wookyong Kwon & Jaepil Ban & Soohee Han & Chong Soo Lee & Sangchul Won, 2017. "Multicriteria Adaptive Observers for Singular Systems with Unknown Time-Varying Parameters," Mathematical Problems in Engineering, Hindawi, vol. 2017, pages 1-10, February.
    • Handle: RePEc:hin:jnlmpe:7343575
    DOI: 10.1155/2017/7343575
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