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Robust Digital Control Design

  • I. D. Landau
  • R. Lozano
  • M. M’Saad
Part of the Communications and Control Engineering book series (CCE)

Abstract

One of the basic questions in control design is how to account for the discrepancies between the model of the plant used for design and the true model. A number of factors may be responsible for modelling errors. A generic term for this modelling error is model uncertainty which can itself be represented mathematically in different ways. Two major classes of uncertainty are: structured uncertainty (or more commonly termed parametric uncertainty) and unstructured uncertainty (usually specified in the frequency domain). The use of unstructured uncertainty description was one of the starting points for the impressive development of robust control design in the 80’s (Zames 1981).

Keywords

Close Loop System Nyquist Plot Robust Stability Internal Model Control Nyquist Criterion 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag London 1998

Authors and Affiliations

  • I. D. Landau
    • 1
  • R. Lozano
    • 2
  • M. M’Saad
    • 3
  1. 1.GR-Automatique EnsiegSt Martin d’HèresFrance
  2. 2.CNRS, HEUDIASYCCompiegne Technological UniversityCompiegne CedexFrance
  3. 3.Caen University, ISMRACaen CedexFrance

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