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Global Practical Output Tracking for a class of Uncertain Inherently Time-Varying Delay Nonlinear Systems by output feedback
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  • Keylan Alimhan,
  • Orken Mamyrbayev,
  • Abilmazhin Adamov,
  • Sandugash Alisheva,
  • Dina Oralbekova
Keylan Alimhan
L N Gumilyov Eurasian National University
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Orken Mamyrbayev
Institute of Information and Computational Technologies
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Abilmazhin Adamov
L N Gumilyov Eurasian National University
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Sandugash Alisheva
L N Gumilyov Eurasian National University
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Dina Oralbekova
Satbayev University

Corresponding Author:[email protected]

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Abstract

This article addresses the problem of global practical output tracking by output feedback for a class of uncertain inherently time-varying delay nonlinear systems. Firstly, a homogeneous output-feedback controller is designed for the nominal uncertain inherently system by virtue of adding a power integrator technique. Then, with the help of an appropriate Lyapunov-Krasovskii functional and reduced-order observer, by using homogeneous domination approach and the adding a power integrator method, an output feedback controller is successfully developed to guarantee all the states of the closed-loop system remain to be bounded and simultaneous make the tracking error arbitrarily small. The simulation results of an example verify the proposed approach