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Terminal observer and disturbance observer for the class of fractional-order chaotic systems

  • Mohammad Reza SoltanpourEmail author
  • Mehrdad Shirkavand
Methodologies and Application
  • 19 Downloads

Abstract

In this paper, a terminal fractional-order observer and a terminal disturbance observer is proposed to estimate internal states and external disturbances of the class of fractional-order chaotic systems. The estimation of states within fixed time is achieved by employing a nonlinear feedback in terms of the observer error. The fixed convergence time is not relevant to the initial conditions and can be adjusted to any desired values by tuning the designable parameters. Finally, the numerical simulations are performed on fractional-order chaotic Liu, Chen, and Financial systems to validate the theoretical results. Moreover, some numerical simulations are provided to compare the obtained theoretical results with the other methods in the literature.

Keywords

Fractional order Chaos Terminal Finite time Fixed time Observer Disturbance observer Liu Financial Chen Arnodo–Coullet Modified Jerk Lu 

Notes

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interests.

Human and animals rights

This article does not contain any studies with human participants or animals performed by any of the authors.

Informed consent

Informed consent was obtained from all individual participants included in the study.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Electrical EngineeringShahid Sattari Aeronautical University of Science and TechnologyTehranIran

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