Volume 7 Number 4
November 2010
Article Contents
Wei-Sheng Chen, Rui-Hong Li and Jing Li. Observer-based Adaptive Iterative Learning Control for Nonlinear Systems with Time-varying Delays. International Journal of Automation and Computing, vol. 7, no. 4, pp. 438-446, 2010. doi: 10.1007/s11633-010-0525-5
Cite as: Wei-Sheng Chen, Rui-Hong Li and Jing Li. Observer-based Adaptive Iterative Learning Control for Nonlinear Systems with Time-varying Delays. International Journal of Automation and Computing, vol. 7, no. 4, pp. 438-446, 2010. doi: 10.1007/s11633-010-0525-5

Observer-based Adaptive Iterative Learning Control for Nonlinear Systems with Time-varying Delays

Author Biography:
  • Corresponding author: Wei-Sheng Chen received the B.Sc.degree in 2000 from the Department of Mathematics of Qufu Normal University,Qufu, PRC,and the M.Sc.and Ph.D.
  • Received: 2009-02-24
Fund Project:

supported by National Natural Science Foundation of China(No.60804021,No.60702063)

通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Observer-based Adaptive Iterative Learning Control for Nonlinear Systems with Time-varying Delays

    Corresponding author: Wei-Sheng Chen received the B.Sc.degree in 2000 from the Department of Mathematics of Qufu Normal University,Qufu, PRC,and the M.Sc.and Ph.D.
Fund Project:

supported by National Natural Science Foundation of China(No.60804021,No.60702063)

Abstract: An observer-based adaptive iterative learning control (AILC) scheme is developed for a class of nonlinear systems with unknown time-varying parameters and unknown time-varying delays.The linear matrix inequality (LMI) method is employed to design the nonlinear observer.The designed controller contains a proportional-integral-derivative (PID) feedback term in time domain.The learning law of unknown constant parameter is differential-difference-type,and the learning law of unknown time-varying parameter is difference-type.It is assumed that the unknown delay-dependent uncertainty is nonlinearly parameterized.By constructing a Lyapunov-Krasovskii-like composite energy function (CEF),we prove the boundedness of all closed-loop signals and the convergence of tracking error.A simulation example is provided to illustrate the effectiveness of the control algorithm proposed in this paper.

Wei-Sheng Chen, Rui-Hong Li and Jing Li. Observer-based Adaptive Iterative Learning Control for Nonlinear Systems with Time-varying Delays. International Journal of Automation and Computing, vol. 7, no. 4, pp. 438-446, 2010. doi: 10.1007/s11633-010-0525-5
Citation: Wei-Sheng Chen, Rui-Hong Li and Jing Li. Observer-based Adaptive Iterative Learning Control for Nonlinear Systems with Time-varying Delays. International Journal of Automation and Computing, vol. 7, no. 4, pp. 438-446, 2010. doi: 10.1007/s11633-010-0525-5
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