Distributed H∞ Secure Control for Time‐Varying Complex Networked Control Systems Under Random‐Access Protocol and FDI Attacks

Abstract

This paper investigates the distributed secure control problem for time‐varying complex networked control systems with parameter uncertainties, under the coexistence of the Random‐Access protocol and false data injection attacks. To tackle network resource constraints and security threats, a mode‐dependent distributed robust control strategy is proposed: It optimizes signal scheduling in the sensor‐controller network via the Random‐Access protocol, while resisting false data injection attacks and accommodating stochastic inner coupling. Based on Lyapunov stability theory, a joint prediction model of system states and attack signals is constructed, and controller parameters are recursively derived by solving recursive linear matrix inequalities at each time instant. Simulation results verify that the proposed method conserves communication resources, mitigates attack impacts, ensures system stability, and satisfies the prescribed disturbance attenuation level.