Nonsingular finite-time second order sliding mode attitude control for reentry vehicle

Yong Zhi Sheng*, Jie Geng, Xiang Dong Liu, Liang Wang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

This paper presents nonlinear robust flight control strategies for the reentry vehicle which is nonlinear, coupling, and includes parameter uncertainties and external disturbances. Firstly, a finite-time second order sliding mode attitude control strategy is pointed out with the introduction of a nonsingular finite-time sliding mode manifold. By the proposed controller, the attitude tracking errors are mathematically proved to converge to zero within finite time and the chattering of sliding mode controller is alleviated without any deterioration of robustness and accuracy. For further alleviation of chattering, a smooth second order sliding mode attitude control strategy is then designed based on an improved nonsingular finite-time sliding mode manifold. Finally, the proposed strategies are applied to the attitude control of X-33 RLV in the reentry phase to verify the validity and robustness of the proposed strategies.

Original languageEnglish
Pages (from-to)853-866
Number of pages14
JournalInternational Journal of Control, Automation and Systems
Volume13
Issue number4
DOIs
Publication statusPublished - 8 Aug 2015

Keywords

  • Chattering alleviation
  • finite-time attitude control
  • reentry vehicle
  • second order sliding mode
  • singularity elimination

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Sheng, Y. Z., Geng, J., Liu, X. D., & Wang, L. (2015). Nonsingular finite-time second order sliding mode attitude control for reentry vehicle. International Journal of Control, Automation and Systems, 13(4), 853-866. https://doi.org/10.1007/s12555-013-0181-y