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Fuzzy neural adaptive tracking control of unknown chaotic systems with input saturation

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Abstract

The contribution of this work is to study the control of unknown chaotic systems with input saturation, and the backstepping-based an adaptive fuzzy neural controller (AFNC) is proposed. In many practical dynamic systems, physical input saturation on hardware dictates that the magnitude of the control signal is always constrained. Saturation is a potential problem for actuators of control systems. It often severely limits system performance, giving rise to undesirable inaccuracy or leading instability. To deal with saturation, we construct a new system with the same order as that of the plant. With the error between the control input and saturation input as the input of the constructed system, a number of signals are generated to compensate the effect of saturation. Finally, simulation results show that the AFNC can achieve favorable tracking performances.

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Authors and Affiliations

  1. School of Automatic and Electronic Information, Sichuan University of Science and Engineering, Zigong, 643000, China

    Da Lin & Yi Yao

  2. Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian, 116024, China

    Xingyuan Wang

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  1. Da Lin
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  2. Xingyuan Wang
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  3. Yi Yao
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Correspondence to Da Lin.

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Lin, D., Wang, X. & Yao, Y. Fuzzy neural adaptive tracking control of unknown chaotic systems with input saturation. Nonlinear Dyn 67, 2889–2897 (2012). https://doi.org/10.1007/s11071-011-0196-y

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  • DOI: https://doi.org/10.1007/s11071-011-0196-y

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