Relations Between Control Signal Properties and Robustness Measures

Per-Ola Larsson, Tore Hägglund

Research output: Contribution to conferencePaper, not in proceedingpeer-review

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Abstract

In this paper we consider control signal properties, such as maximum magnitude and activity, as well as system robustness measures. We derive an ideal controller and control signal for exponential disturbance rejection for a first order process with time delay. For the resulting closed-loop system, it is shown analytically that there are strong interconnections between robustness measures and control signal properties regarding load disturbance attenuation. The results imply that popular controller design methods implicitly take control signal properties into consideration.
Original languageEnglish
Publication statusPublished - 2008
Event17th IFAC World Congress, 2008 - Seoul, Korea, Seoul, Korea, Democratic People's Republic of
Duration: 2008 Jul 62008 Jul 11
Conference number: 17

Conference

Conference17th IFAC World Congress, 2008
Country/TerritoryKorea, Democratic People's Republic of
CitySeoul
Period2008/07/062008/07/11

Subject classification (UKÄ)

  • Control Engineering

Free keywords

  • robust time-delay systems
  • constrained control
  • Controller constraints and structure
  • disturbance rejection
  • robustness analysis.

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  • PID Control

    Robertsson, A. (Researcher), THEORIN, A. (Researcher), Bernhardsson, B. (Researcher), Berner, J. (Researcher), Åström, K. J. (Researcher), Hast, M. (Researcher), Garpinger, O. (Researcher), Larsson, P.-O. (Researcher), Hägglund, T. (Researcher), Romero Segovia, V. (Researcher) & Soltesz, K. (PI)

    1900/01/012022/05/01

    Project: Research

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