Adaptive terminal sliding mode controller design for cyber‐physical systems under external disturbance and actuator cyber‐attack

Abstract

This article studies a novel technique of the adaptive terminal sliding mode (TSM) control for the finite time stabilization of cyber-physical systems (CPSs).By using the proposed nonlinear sliding surface, the reaching mode is eliminated and the entire system robust procedure is ameliorated. The used adaptive laws are dealt with the cyber-attacks and external disturbances which their upper bounds are not needed to be recognized, where suggested approach is more pliable in the real performance. The presented new adaptive TSM control technique guarantees the system robustness versus cyber-attacks and external disturbances. Furthermore, the proposed control method obliterated the chattering behavior utilizing the hyperbolic tangent function and the continuous adaptive parameters in the control law. Numerical simulation results indicate the proposed adaptive TSM control technique's effectiveness and success compared to the results of state feedback control, conventional sliding mode control (SMC), traditional integral-type SMC, and adaptive integral-type SMC methods.