IEEE/CAA Journal of Automatica Sinica
Citation: | S. Wang, W. Ji, Y. Jiang, Y. Zhu, and J. Sun, “Relaxed stability criteria for time-delay systems: A novel quadratic function convex approximation approach,” IEEE/CAA J. Autom. Sinica, vol. 11, no. 4, pp. 996–1006, Apr. 2024. doi: 10.1109/JAS.2023.123735 |
This paper develops a quadratic function convex approximation approach to deal with the negative definite problem of the quadratic function induced by stability analysis of linear systems with time-varying delays. By introducing two adjustable parameters and two free variables, a novel convex function greater than or equal to the quadratic function is constructed, regardless of the sign of the coefficient in the quadratic term. The developed lemma can also be degenerated into the existing quadratic function negative-determination (QFND) lemma and relaxed QFND lemma respectively, by setting two adjustable parameters and two free variables as some particular values. Moreover, for a linear system with time-varying delays, a relaxed stability criterion is established via our developed lemma, together with the quivalent reciprocal combination technique and the Bessel-Legendre inequality. As a result, the conservatism can be reduced via the proposed approach in the context of constructing Lyapunov-Krasovskii functionals for the stability analysis of linear time-varying delay systems. Finally, the superiority of our results is illustrated through three numerical examples.
[1] |
P. Pepe and Z. Jiang, “A Lyapunov-Krasovskii methodology for ISS and iISS of time-delay systems,” Syst. Control. Lett., vol. 55, no. 12, pp. 1006–1014, 2006. doi: 10.1016/j.sysconle.2006.06.013
|
[2] |
X. Zhang, Q.-L. Han, and X. Ge, “Novel stability criteria for linear time-delay systems using Lyapunov-Krasovskii functionals with a cubic polynomial on time-varying delay,” IEEE/CAA J. Autom. Sinica, vol. 8, no. 1, pp. 77–85, 2021.
|
[3] |
H. Zeng, H. Lin, Y. He, C. Zhang, and K. Teo, “Improved negativity condition for a quadratic function and its application to systems with time-varying delay,” IET Control Theory, vol. 14, pp. 2989–2993, 2020. doi: 10.1049/iet-cta.2019.1464
|
[4] |
Y. Wang, H. Liu, and X. Li, “A novel method for stability analysis of time-varying delay systems,” Automatica, vol. 66, no. 3, pp. 1422–1428, 2021.
|
[5] |
Y. Chen and G. Chen, “Stability analysis of systems with time-varying delay via a novel Lyapunov functional,” IEEE/CAA J. Autom. Sinica, vol. 6, no. 10, pp. 1068–1073, 2019.
|
[6] |
J. Chen and J. Park, “New versions of Bessel-Legendre inequality and their applications to systems with time-varying delay,” Appl. Math. Comput., vol. 375, p. 125060, 2020.
|
[7] |
Z. Li, H. Yan, H. Zhang, X. Zhan, and C. Huang, “Improved inequalitybased functions approach for stability analysis of time delay system,” Automatica, vol. 108, p. 108416, 2019. doi: 10.1016/j.automatica.2019.05.033
|
[8] |
F. Long, L. Jiang, Y. He, and M. Wu, “Stability analysis of systems with time-varying delay via novel augmented Lyapunov-Krasovskii functionals and an improved integral inequality,” Appl. Math. Comput., vol. 357, pp. 325–337, 2019.
|
[9] |
S. Ding, Z. Wang, Y. Wu, and H. Zhang, “Stability criterion for delayed neural networks via Wirtinger-based multiple integral inequality,” Neurocomputing, vol. 214, no. 19, pp. 53–60, 2016.
|
[10] |
K. Gu, J. Chen, and V. Kharitonov, Stability of Time-Delay Systems. Boston, USA: Springer Science & Business Media, 2003.
|
[11] |
Y. Wang, C. Hua, and G. Park, “Relaxed stability criteria for delayed generalized neural networks via a novel reciprocally convex combination,” IEEE/CAA J. Autom. Sinica, vol. 9, no. 0, pp. 1–3, 2022.
|
[12] |
A. Seuret and F. Gouaisbaut, “Hierarchy of LMI conditions for the stability analysis of time delay systems,” Syst. Control. Lett., vol. 81, pp. 1–7, 2015. doi: 10.1016/j.sysconle.2015.03.007
|
[13] |
C. Zhang, Y. He, L. Jiang, W. Lin, and M. Wu, “Delay-dependent stability analysis of neural networks with time-varying delay: A generalized free-weighting-matrix approach,” Appl. Math. Comput., vol. 294, pp. 102–120, 2017.
|
[14] |
S. Wang, W. Ji, Y. Jiang, and D. Liu, “Relaxed stability criteria for neural networks with time-varying delay using extended secondary delay partitioning and equivalent reciprocal convex combination techniques,” IEEE Trans. Neur. Net. Lear., vol. 31, no. 10, pp. 4157–4169, 2020. doi: 10.1109/TNNLS.2019.2952410
|
[15] |
J. Chen, S. Xu, and B. Zhang, “Single/multiple integral inequalities with applications to stability analysis of time-delay systems,” IEEE Trans. Automat. Contr., vol. 62, pp. 3488–3493, 2017. doi: 10.1109/TAC.2016.2617739
|
[16] |
Z. Li, H. Yan, H. Zhang, Y. Peng, J. Park, and Y. He, “Stability analysis of linear systems with time-varying delay via intermediate polynomial based functions,” Automatica, vol. 113, p. 108756, 2020. doi: 10.1016/j.automatica.2019.108756
|
[17] |
H. Zeng, Y. He, M. Wu, and J. She, “Free-matrix-based integral inequality for stability analysis of systems with time-varying delay,” IEEE Trans. Automat. Contr., vol. 60, no. 10, pp. 2768–2772, 2015. doi: 10.1109/TAC.2015.2404271
|
[18] |
S. Lee, W. Lee, and P. Park, “Polynomials-based integral inequality for stability analysis of linear systems with time-varying delays,” J. Franklin. Institute, vol. 354, no. 4, pp. 2053–2067, 2017. doi: 10.1016/j.jfranklin.2016.12.025
|
[19] |
O. Kwon, M. Park, J. Park, S. Lee, and E. Cha, “Improved results on stability of linear systems with time-varying delays via wirtinger-based integral inequality,” J. Franklin. Institute, vol. 351, no. 12, pp. 5386–5398, 2014. doi: 10.1016/j.jfranklin.2014.09.021
|
[20] |
P. Park, W. Lee, and S. Lee, “Auxiliary function-based integral inequalities for quadratic functions and their applications to time-delay systems,” J. Franklin. Institute, vol. 75, no. 4, pp. 11–15, 2017.
|
[21] |
A. Seuret and F. Gouaisbaut, “Stability of linear systems with timevarying delays using Bessel-Legendre inequalities,” IEEE Trans. Automat. Contr., vol. 63, no. 1, pp. 225–232, 2018. doi: 10.1109/TAC.2017.2730485
|
[22] |
X. Zhang and Q.-L. Han, “State estimation for static neural networks with time-varying delays based on an improved reciprocally convex inequality,” IEEE Trans. Neur. Net. Lear., vol. 29, no. 99, pp. 1376–1381, 2018.
|
[23] |
X. Zhang, Q.-L. Han, and J. Wang, “Admissible delay upper bounds for global asymptotic stability of neural networks with time-varying delays,” IEEE Trans. Neur. Net. Lear., vol. 29, no. 11, pp. 5319–5329, 2018. doi: 10.1109/TNNLS.2018.2797279
|
[24] |
H. Zeng, X. Liu, and W. Wang, “A generalized free-matrix-based integral inequality for stability analysis of time-varying delay systems,” Appl. Math. Comput., vol. 354, pp. 1–8, 2019. doi: 10.1016/j.cam.2019.01.001
|
[25] |
X. Zhang, W. Lin, Q.-L. Han, Y. He, and M. Wu, “Global asymptotic stability for delayed neural networks using an integral inequality based on nonorthogonal polynomials,” IEEE Trans. Neur. Net. Lear., vol. 29, no. 4, pp. 4487–4493, 2018.
|
[26] |
J. Chen, X. Zhang, J. Park, and S. Xu, “Improved stability criteria for delayed neural networks using a quadratic function negative-definiteness approach,” IEEE Trans. Neur. Net. Lear., vol. 33, no. 3, pp. 1348–1354, 2022. doi: 10.1109/TNNLS.2020.3042307
|
[27] |
F. Long, C. Zhang, Y. He, Q. Wang, and M. Wu, “Stability analysis for delayed neural networks via a novel negative-definiteness determination method,” IEEE Trans. Cyber., vol. 52, no. 6, pp. 5356–5366, 2022. doi: 10.1109/TCYB.2020.3031087
|
[28] |
F. S. S. de Oliveira and F. O. Souza, “Further refinements in stability conditions for time-varying delay systems,” Appl. Math. Comput., vol. 369, p. 124866, 2020.
|
[29] |
X. Zhang, Q.-L. Han, and X. Ge, “Sufficient conditions for a class of matrix-valued polynomial inequalities on closed intervals and application to H∞ filtering for linear systems with time-varying delays,” Automatica, vol. 125, p. 109390, 2021. doi: 10.1016/j.automatica.2020.109390
|
[30] |
Y. He, C. Zhang, H. Zeng, and M. Wu, “Additional functions of variable-augmented-based free-weighting matrices and application to systems with time-varying delay,” Int. J. Syst. Sci., vol. 54, no. 11, pp. 2301–2315, 2023. doi: 10.1080/00207721.2022.2157198
|
[31] |
C. Zhang, F. Long, Y. He, W. Yao, and M. Wu, “A relaxed quadratic function negative-determination lemma and its application to time-delay systems,” Automatica, vol. 113, p. 108764, 2020. doi: 10.1016/j.automatica.2019.108764
|
[32] |
F. Long, C. Zhang, Y. He, Q. Wang, and M. Wu, “A sufficient negative definiteness condition for cubic functions and application to time-delay systems,” Int. J. Robust. Nonlin., vol. 31, no. 11, pp. 7361–7371, 2021.
|