Secure Control for Networked Control Systems With Actuator Failure and Random Hybrid Attacks

ABSTRACT This research investigates the design of state feedback controllers for Networked Control Systems (NCSs) subject to actuator failures alongside hybrid cyber‐attacks, specifically Denial‐of‐Service (DoS) and deception attacks. To reduce the use of network resources, two distinct dynamic event‐triggered schemes (DETSs) are proposed. These DETSs govern the data transmission scheduling for both measurement outputs and control inputs across the communication network. A key contribution lies in the simultaneous consideration of actuator malfunctions and the aforementioned hybrid cyber‐attack scenarios. Utilizing Lyapunov stability theory, conditions for the mean square asymptotic stability of the resultant augmented closed‐loop system are established. Subsequently, controller gains and event‐triggering parameters are co‐designed through the application of linear matrix inequality (LMI) techniques. Finally, a simulation example validates the theoretical results, demonstrating the proposed method's efficacy in mitigating the adverse impact of such cyber‐attacks and actuator failures on networked control systems' performance.