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Observer-Based Robust Tracking Control for a Class of Switched Nonlinear Cascade Systems

Author

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  • Ben Niu
  • Deqing Zhao
  • Xudong Zhao
  • Hongyi Li
  • Xiangyong Chen
  • Xiaoxiao Dong

Abstract

This paper is devoted to robust output feedback tracking control design for a class of switched nonlinear cascade systems. The main goal is to ensure the global input-to-state stable (ISS) property of the tracking error nonlinear dynamics with respect to the unknown structural system uncertainties and external disturbances. First, a nonlinear observer is constructed through state transformation to reconstruct the unavailable states, where only one parameter should be determined. Then, by virtue of the nonlinear sliding mode control (SMC), a discontinuous nonlinear output feedback controller is designed using a backstepping like design procedure to ensure the ISS property. Finally, an example is provided to show the effectiveness of the proposed approach.

Suggested Citation

  • Ben Niu & Deqing Zhao & Xudong Zhao & Hongyi Li & Xiangyong Chen & Xiaoxiao Dong, 2013. "Observer-Based Robust Tracking Control for a Class of Switched Nonlinear Cascade Systems," Mathematical Problems in Engineering, Hindawi, vol. 2013, pages 1-9, September.
    • Handle: RePEc:hin:jnlmpe:136863
    DOI: 10.1155/2013/136863
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