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Synchronization of Lorenz System Based on Fast Stabilization Sliding Mode Control

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  • Xu Guowei
  • Wan Zhenkai
  • Li Chunqing

Abstract

A sliding mode control approach is achieved for Lorenz system based on optimal finite time convergent and integral sliding mode surface. The system perturbation is divided into two parts: the unmatched and the matched parts. Firstly, we design a discontinuous control for the unmatched part which will not be amplified. Secondly, we design a continuous control, that is, the ideal control to stabilize the Lorenz system error states in finite time stabilization. Then the controller based on integral sliding mode is constructed to ensure the robustness. The proposed method is proven to guarantee the stability and the robustness using the Lyapunov theory in the system uncertainties and external perturbation. Finally, the numerical simulations demonstrate that the proposed controller is effective and robust with respect to the perturbation.

Suggested Citation

  • Xu Guowei & Wan Zhenkai & Li Chunqing, 2015. "Synchronization of Lorenz System Based on Fast Stabilization Sliding Mode Control," Mathematical Problems in Engineering, Hindawi, vol. 2015, pages 1-6, May.
    • Handle: RePEc:hin:jnlmpe:282919
    DOI: 10.1155/2015/282919
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