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Stability of Linear Systems with Interval Time-varying Delay via New Interval Decomposition

새로운 구간 분해 방법을 이용한 구간 시변지연을 갖는 선형시스템의 안정성

  • 김진훈 (충북대학교 전자정보대학 전자공학부)
  • Received : 2011.06.19
  • Accepted : 2011.08.08
  • Published : 2011.09.01

Abstract

In this paper, we consider the stability of linear systems with an interval time-varying delay. It is known that the adoption of decomposition of delay improves the stability result. For the interval time-delay case, they applied it to the interval of time-delay and got less conservative results. Our basic idea is to apply the general decomposition to the low limit of delay as well as interval of time-delay. Based on this idea, by using the modified Lyapunov-Krasovskii functional and newly derived Lemma, we present a less conservative stability criterion expressed as in the form of linear matrix inequality(LMI). Finally, we show, by well-known two examples, that our result is less conservative than the recent results.

Keywords

References

  1. E. Fridman and U. Shaked, "A descriptor system approach to $H_{\infty}$ control of linear time-delay systems", IEEE Trans. Autom. Control, vol. 47, pp. 253-270, 2001.
  2. M. Wu, Y. He, J.-H. She and G.-P. Liu, "Delaydependent criteria for robust stability of time-varying delay system", Automatica, vol. 40, no. 8, pp.1435-1439, 2004. https://doi.org/10.1016/j.automatica.2004.03.004
  3. Q.-L. Han, "A descriptor system approach to robust stability of uncertain neutral systems with discrete and distributed delays", Automatica, vol 40, pp. 1791-1796, 2004. https://doi.org/10.1016/j.automatica.2004.05.002
  4. X. Jiang and Q. L. Han, " On $H_{\infty}$ control for linear systems with interval time-varying delay", Automatica, vol. 41, pp. 2099-2106, 2005. https://doi.org/10.1016/j.automatica.2005.06.012
  5. Y. He, Q.-G. Wang, L. Xie and C. Lin, "Delay-range-dependent stability for systems with time-varying delay", Automatica, vol. 43, pp. 371-376, 2007. https://doi.org/10.1016/j.automatica.2006.08.015
  6. H. Shao, "Improved delay-dependent stability criteria for systems with a delay varying in a range", Automatica, vol. 44, pp. 3215-3218, 2008. https://doi.org/10.1016/j.automatica.2008.09.003
  7. P. Park and J.W. Ko, "Stability and robust stability for systems with a time-varying delay, https://doi.org/10.1016/j.automatica.2007.02.022
  8. D. Yue, E. Tian and Y. Zhang, A piecewise analysis method to stability analysis of linear continuous/ discrete systems with time-varying delay, Int. J. of Robust and Nonlinear Control, vol.19, pp. 1493-1518, 2009. https://doi.org/10.1002/rnc.1399
  9. J. Sun, G.-P.. Liu, J. Chen and D. Rees, "Improved delay-range-dependent stability criteria for linear systems with time-varying delays", Automatica, vol. 46, pp. 466-470, 2010. https://doi.org/10.1016/j.automatica.2009.11.002
  10. X.L. Zhu, G.-H. Yang, "New results of stability analysis for susyems with time-varying delay", Int. J. Robust Nonlinear Control, vol.20, pp.596-606, 2010.
  11. S. Boyd, L. E. Ghaoui, E. Feron and V. Balakrishhnan, Linear Matrix Inequalities in System and Control Theory, Studies in Applied mathematics, 1994.
  12. J.-H. Kim, "Note on stability of linear systems with time-varying delay", Automatica(will be printed in 2011).
  13. K. Gu, V.L. Kharitonov and J. Chen, Stability of time-delay systems, Birkhausser, 2003.