Abstract
A novel adaptive neural network (NN) output-feedback regulation algorithm for a class of nonlinear time-varying time-delay systems is proposed. Both the designed observer and controller are independent of time delay. Different from the existing results, where the upper bounding functions of time-delay terms are assumed to be known, we only use an NN to compensate for all unknown upper bounding functions without that assumption. The proposed design method is proved to be able to guarantee semi-global uniform ultimate boundedness of all the signals in the closed system, and the system output is proved to converge to a small neighborhood of the origin. The simulation results verify the effectiveness of the control scheme.
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.References
S. L. Niculescu. Delay Effects on Stability: A Robust Control Approach, Springer-Verlay, London, UK, 2001.
S. K. Nguang. Robust Stabilization of a Class of Time-delay Nonlinear Systems. IEEE Transactions on Automatic Control, vol. 45, no. 4, pp. 756–762, 2000.
Y. S. Fu, Z. H. Tian, S. J. Shi. State Feedback Stabilization for a Class of Stochastic Time-delay Nonlinear Systems. IEEE Transactions on Automatic Control, vol. 48, no. 2, pp. 282–286, 2003.
S. S. Zhou, G. Feng, S. K. Nguang. Comments on “Robust Stabilization of a Class of Time-delay Nonlinear Systems”. IEEE Transactions on Automatic Control, vol. 47, no. 9, pp. 1586–1586, 2002.
C. C. Hua, X. P. Guan. Comments on “State Feedback Stabilization for a Class of Stochastic Time-delay Nonlinear Systems”. IEEE Transactions on Automatic Control, vol. 49, no. 7, pp. 1216–1216, 2004.
X. H. Jiao, T. L. Shen. Adaptive Feedback Control of Nonlinear Time-delay Dystems: The LaSalle-Razumikhin-based Approach. IEEE Transactions on Automatic Control, vol. 50, no. 11, pp. 1909–1913, 2005.
Y. S. Fu, Z. H. Tian, S. J. Shi. Output Feedback Stabilization for Time-delay Nonlinear Systems. Acta Automatica Sinica, vol. 28, no. 5, pp. 802–805, 2002. (in Chinese)
Y. S. Fu, Z. H. Tian, S. J. Shi. Output Feedback Stabilization for a Class of Stochastic Time-delay Nonlinear Systems. IEEE Transactions on Automatica Control, vol. 50, no. 6, pp. 847–851, 2005.
C. C. Hua, X. P Guan, P. Shi. Robust Backstepping Control for a Class of Time Delay Systems. IEEE Transactionsons Automatica Control, vol. 50, no. 6, pp. 894–899, 2005.
M. M. Polycarpou, M. J. Mears. Stable Adaptive Tracking of Uncertain Systems Using Nonlinearly Parameterized Online Approximators. International Journal of Control, vol. 70, no. 3, pp. 363–384, 1998.
T. Zhang, S. S. Ge, C. C. Huang. Adaptive Neural Network Control for Strict-feedback Nonlinear Systems Using Backstepping Design. Automatica, vol. 36, no. 12, pp. 1835–1846, 2000.
Y. H. Li. Robust and Adaptive Backstepping Control for Nonlinear Systems Using RBF Neural Networks. IEEE Transactions on Neural Networks, vol. 15, pp. 3, pp. 693-701, 2004.
Y. S. Yang, C. J. Zhou. Adaptive Fuzzy H ∞ Stabilization for Strict-feedback Canonical Nonlinear Systems via Backstepping and Small-gain Approach. IEEE Transactions on Fuzzy Systems, vol. 13, no. 1, pp. 104–114, 2005.
D. Wang, J. Huang. Neural Network-based Adaptive Dynamic Surface Control for a Class of Uncertain Nonlinear Sytems in Strict-feedback Form. IEEE Transactions on Neural Networks, vol. 16, no. 1, pp. 195–202, 2005.
H. B. Du, H. H. Shao, P. J. Yao. Adaptive Neural Network Control for a Class of Low-triangular-structured Nonlinear Systems. IEEE Transactions on Neural Networks, vol. 17 no. 2, pp. 509–514, 2006.
J. Y. Choi, J. A. Farrell. Adaptive Observer Backstepping Control Using Neural Networks. IEEE Transactions on Neural Networks, vol. 12, no. 5, pp. 1103–1113, 2001.
J. Stoev, J. Y. Choi, J. Farrell. Adaptive Control for Output Feedback Nonlinear Systems in the Presence of Modeling Errors. Automatica, vol. 38, no. 10, pp. 1761–1767, 2002.
K. Funahashi. On the Approximate Realization of Continuous Mappings by Neural Networks. Neural Networks, vol. 2, no. 1, pp. 183–192, 1989.
K. S. Narendra, K. Parthasarathy. Identification and Control of Dynamic Systems Using Neural Networks. IEEE Transactions on Neural Networks, vol. 1, no. 1, pp. 4–27, 1990.
H. Hong, S. S. Ge, T. H. Lee. Practical Adaptive Neural Control of Nonlinear Systems with Unknown Time Delay. IEEE Transactions on Systems, Man, and Cybernetics — Part B, vol. 35, no. 4, pp. 849–854, 2005.
W. S. Chen, J. M. Li. Adaptive Output Feedback Control for Nonlinear Time-delay Systems Using Neural Networks. Journal of Control Theory and Application, vol. 4, no. 4, pp. 313–320, 2006.
W. S. Chen, J. M. Li. Adaptive Neural Tracking Control for Unknown Output Feedback Nonlinear Time Delay Systems. Acta Automatica Sinica, vol. 31, no. 5, pp. 799–803, 2005. (in Chinese)
J. K. Hale, S. M. Lunel. Introduction to Functional Differential Equations, Springer-Verlay, New York, USA, 1993.
Author information
Authors and Affiliations
Corresponding author
Additional information
This work was supported by National Natural Science Foundation of China (NSFC) (No. 60374015).
Wei-Sheng Chen received the B. Sc. degree in the Department of Mathematics at Qufu Normal University, Qufu, China, in 2000, and the M. Sc. degree in the Department of Applied Mathematics at Xidian University, Xi’an, China, in 2004. He is currently a Ph. D. candidate in the Department of Applied Mathematics at Xidian University, China.
His research interests include robust and adaptive control, neural network control, nonlinear control, and time-delay control systems.
Jun-Min Li received the B. Sc. andM. Sc. degrees from the Department of Applied Mathematics at Xidian University, China, in 1987 and 1989, respectively, and Ph.D. degree in systems engineering from Xi’an Jiaotong University, Xi’an, China, in 1997. He is currently a professor in the Department of Applied Mathematics at Xidian University, China.
His research interests include robust and adaptive control, optimal control, iterative learning control, and networked control systems.
Rights and permissions
About this article
Cite this article
Chen, WS., Li, JM. Adaptive output-feedback regulation for nonlinear delayed systems using neural network. Int. J. Autom. Comput. 5, 103–108 (2008). https://doi.org/10.1007/s11633-008-0103-2
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/s11633-008-0103-2