Globally stable adaptive system design for minimum phase SISO plants with input saturation

  • Authors:
  • Y. -S. Zhong

  • Affiliations:
  • Department of Automation, Tsinghua University, Beijing 100084, PR China

  • Venue:
  • Automatica (Journal of IFAC)
  • Year:
  • 2005

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Abstract

Model reference adaptive control problem for single-input single-output time-invariant continuous-time plants with input saturation is considered with main attention focused on global properties. A sufficient condition is presented and a new design method of adaptive control systems is proposed. If a priori information about the plant is available to choose the reference model and the reference input so that the sufficient condition holds, the closed-loop adaptive control system designed by the proposed method can have global stability and globally output tracking property. It is shown that the sufficient condition becomes necessary in some cases.