Adaptive finite-time command-filtered backstepping sliding mode control for stabilization of a disturbed rotary-inverted-pendulum with experimental validation

Omid Mofid, Khalid A. Alattas, Saleh Mobayen, Mai The Vu, Yassine Bouteraa

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

In this paper, the finite-time stabilization of the disturbed and uncertain rotary-inverted-pendulum system is studied based on the adaptive backstepping sliding mode control procedure. For this purpose, first of all, the dynamical equation of the rotary-inverted-pendulum system is obtained in the state-space form in the existence of external disturbances and model uncertainties with unknown bound. Afterward, a novel command filter is defined to enhance the control strategy by consideration of a virtual control input. Therefore, the differential signal is replaced by the output of the command filter to reduce the complicated computing in the control process. Hence, the finite-time convergence of the sliding surface to the origin is attested by using the backstepping sliding mode control scheme according to the Lyapunov theory. Besides, the unknown upper bound of the exterior perturbation and uncertainty is approximated providing the adaptive control technique. Finally, simulations and experimental results are done to demonstrate the impression and proficiency of the suggested method.

Original languageEnglish
JournalJVC/Journal of Vibration and Control
DOIs
StateAccepted/In press - 2022

Keywords

  • Backstepping control
  • finite-time convergence
  • inverted-pendulum
  • robust stability
  • sliding mode control

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