Global Finite Time Synchronization of Two Nonlinear Chaotic Gyros Using High Order Sliding Mode Control

Document Type: Research Paper


1 Faculty of Electrical and Electronic Engineering, Department of Control Engineering, Malek Ashtar University of Technology

2 Assistant Professor, Department of Electrical and Electronic Engineering, Hamedan University of Technology

3 Assistant Professor, Faculty of Electrical and Electronic Engineering, Department of Control Engineering, Malek Ashtar University of Technology


In this paper, under the existence of system uncertainties, external disturbances, and input nonlinearity, global finite time synchronization between two identical attractors which belong to a class of second-order chaotic nonlinear gyros are achieved by considering a method of continuous smooth second-order sliding mode control (HOAMSC). It is proved that the proposed controller is robust to mismatch parametric uncertainties. Also it is shown that the method have excellent performance and more accuracy in comparison with conventional sliding mode control. Based on Lyapunov stability theory, the proposed controller and some generic sufficient conditions for global finite time synchronization are designed such that the errors dynamic of two chaotic behaviour satisfy stability in the Lyapunov sense. The numerical results demonstrate the efficiency of the proposed scheme to synchronize the chaotic gyro systems using a single control input.


Main Subjects

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