Global output feedback control with disturbance attenuation for minimum-phase nonlinear systems

Research output: Contribution to journalArticle

Abstract

This paper deals with the problem of disturbance attenuation with stability for a class of minimum-phase nonlinear uncertain systems by output feedback. In contrast to the state-feedback case, a nonlinear, not necessarily linear L2, gain is employed to characterize the disturbance rejection level. A constructive output feedback design is described to achieve global asymptotic stability while the effect of the disturbance on the output is diminished to an arbitrary degree of accuracy. Sufficient conditions are additionally provided to yield a nonlinear output feedback solving the standard L2-gain disturbance attenuation problem with internal stability.

Original languageEnglish (US)
Pages (from-to)155-164
Number of pages10
JournalSystems and Control Letters
Volume39
Issue number3
StatePublished - Mar 15 2000

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Feedback control
Nonlinear systems
Feedback
Uncertain systems
Disturbance rejection
Asymptotic stability
State feedback

Keywords

  • Disturbance attenuation
  • L-gain
  • Nonlinear control
  • Nonlinear gain
  • Output feedback
  • Partial-state observer
  • Uncertain systems

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

Cite this

Global output feedback control with disturbance attenuation for minimum-phase nonlinear systems. / Jiang, Zhong-Ping.

In: Systems and Control Letters, Vol. 39, No. 3, 15.03.2000, p. 155-164.

Research output: Contribution to journalArticle

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AB - This paper deals with the problem of disturbance attenuation with stability for a class of minimum-phase nonlinear uncertain systems by output feedback. In contrast to the state-feedback case, a nonlinear, not necessarily linear L2, gain is employed to characterize the disturbance rejection level. A constructive output feedback design is described to achieve global asymptotic stability while the effect of the disturbance on the output is diminished to an arbitrary degree of accuracy. Sufficient conditions are additionally provided to yield a nonlinear output feedback solving the standard L2-gain disturbance attenuation problem with internal stability.

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