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Disturbance observer based attitude control for flexible spacecraft with input magnitude and rate constraints

  • Zhijie Liu
  • , Jinkun Liu*
  • , Lijun Wang
  • *Corresponding author for this work
  • Beihang University
  • Key Laboratory of Precision Opto-Mechatronics Technology (Ministry of Education)

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, we investigate the problem of attitude control design for flexible spacecraft with external disturbance, input magnitude and rate constraints. First, a disturbance observer is designed to estimate and compensate for the disturbances including the external disturbance and vibration from the flexible appendages. Then, based on the disturbance observer, a sample state feedback control scheme is proposed for flexible spacecraft subject to input magnitude and rate constrains, using the linear matrix inequality (LMI) and Lyapunov direct method. Finally, the results are illustrated using numerical simulations for control performance verification.

Original languageEnglish
Pages (from-to)486-492
Number of pages7
JournalAerospace Science and Technology
Volume72
DOIs
StatePublished - Jan 2018

Keywords

  • Disturbance observer
  • Flexible spacecraft
  • Input magnitude and rate constraints
  • LMI technology
  • State feedback control

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