Second-order SM approach to SISO time-delay system output tracking

Gang Liu*, Alan Zinober, Yuri B. Shtessel

*Corresponding author for this work

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Abstract

A fully linearizable single-input-single-output relative-degree n system with an output time delay is considered in this paper. Using the approach of Padé approximation, system center approach, and second-order sliding-mode (SM) control, we have obtained good output tracking results. The Smith predictor is used to compensate the difference between the actual delayed output and its approximation. A second-order supertwisting SM observer observes the disturbance in the plant. A nonlinear example is studied to show the effect of this methodology.

Original languageEnglish
Pages (from-to)3638-3645
Number of pages8
JournalIEEE Transactions on Industrial Electronics
Volume56
Issue number9
DOIs
Publication statusPublished - 2009
Externally publishedYes

Keywords

  • Output delay
  • Padé approximation
  • Second-order sliding-mode (SM) control
  • Stable system center

Cite this

Liu, G., Zinober, A., & Shtessel, Y. B. (2009). Second-order SM approach to SISO time-delay system output tracking. IEEE Transactions on Industrial Electronics, 56(9), 3638-3645. https://doi.org/10.1109/TIE.2009.2017089