ESO-based saturated deployment control of tethered satellite system with finite-time tracking performance guarantees

Caisheng Wei, Yanzhu Bian, Yuxin Liao, Shibin Luo, Zeyang Yin, Jianjun Luo

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations

Abstract

This paper investigates a novel finite-time saturated deployment control approach for the tethered satellite system in the presence of uncertain dynamics and space perturbations, as well as state constraints. First, an integral Lyapunov function is constructed to remove the hard state constraints characterized by a finite-time convergent performance function. Then, a backstepping finite-time deployment controller is devised via using an extended state observer (ESO) to approach the unknown dynamics, perturbations and saturation deviation. Compared with the existing finite-time control methods, the prominent advantage of the proposed one is that the finite-time saturated deployment control is achieved without violating the state constraints and using fractional state feedback. Finally, an illustrative example is organized to validate the effectiveness of the proposed approach.

Original languageEnglish
Pages (from-to)5689-5694
Number of pages6
JournalIFAC-PapersOnLine
Volume53
Issue number2
DOIs
StatePublished - 2020
Event21st IFAC World Congress 2020 - Berlin, Germany
Duration: 12 Jul 202017 Jul 2020

Keywords

  • Extended state observer
  • Finite-time control
  • Saturated control
  • Tethered satellite system

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