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Robust stability of sampled data systems

  • Mituhiko Araki
  • Tomomichi Hagiwara
Conference paper
Part of the Lecture Notes in Control and Information Sciences book series (LNCIS, volume 183)

Abstract

In this paper, we study robust stability and stabilizability of sampled-data control systems composed of a continuous-time plant and a discrete-time compensator together with sample/hold devices, using the frequency domain method. Our study is not confined only to the case of standard (i.e., single-rate) sampled-data controllers but also extended to the case of multirate sampled-data controllers. Specifically, we compare, by numerical examples, the tolerable amounts of the uncertainty of a given continuous-time plant for which the robust stabilization can be attained in the three cases: the cases of a continuous-time controller, a single-rate sampled-data controller, and a multirate sampled-data controller. The result will be useful for estimating the deterioration caused by use of sampled-data controllers in place of continuous ones, or evaluating the advantages of the multirate sampled-data scheme over the standard one.

Keywords

Frequency Domain Method Pole Assignment Digital Control System Frame Period Impulse Modulation 
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 1992

Authors and Affiliations

  • Mituhiko Araki
    • 1
  • Tomomichi Hagiwara
    • 1
  1. 1.Department of Electrical EngineeringKyoto UniversityKyotoJapan

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