Abstract
This paper is concerned with adaptive neural tracking control problem for uncertain switched nonlinear systems with unknown dead-zone input. Multilayer neural networks (MNNs) are employed to approximate unknown nonlinear functions, and an adaptive neural network controller is introduced to enhance system robustness. With the proposed control scheme, boundedness of all the signals of the closed-loop system is established regardless of the parameter adjustment mechanism, and better tracking control performance can eventually be achieved in view of the universal approximation capability of MNNs. Also, a switching signal is suitably defined using average dwell-time technique. By using a switching control scheme, it is demonstrated that the transient performance and stability can be simultaneously obtained. Finally, a simulation example is given to illustrate the effectiveness and validity of this approach.
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Acknowledgments
The work is supported by the National Natural Science Foundation of China (No. 61403268), Natural Science Foundation of Jiangsu Province, China (No. BK20130331), Open Project from digital manufacture technology Key Laboratory of JiangSu Province (No. HGDML-1105), and the Foundation of Key Laboratory of Measurement and Control of Complex Systems of Engineering, Ministry of Education, China (No. MCCSE2013A01). The authors also gratefully acknowledge the helpful comments and suggestions of the reviewers, which have improved the presentation.
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Yu, L., Fei, S. & Yang, G. A Neural Network Approach for Tracking Control of Uncertain Switched Nonlinear Systems with Unknown Dead-Zone Input. Circuits Syst Signal Process 34, 2695–2710 (2015). https://doi.org/10.1007/s00034-015-9971-1
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DOI: https://doi.org/10.1007/s00034-015-9971-1