The object of this article is to propose novel observer-based resilient control for Networked Control Systems (NCS) against cyber-attacks to sensor. It is assumed system is under cyber-attacks that occurred in sensor such that attacker can access to sensor and consequently injects false data to sensor. To achieve resilience in such conditions, at first a novel observer is proposed in order to estimate the actual states of system. Then a novel observer based controller is proposed in order to NCS in conditions of attack remains stable. Applying Lyapunov-Krasovskii functional method, delay dependent resilient criterion is established to show the exponential behavior of NCS in such conditions. Finally, for evaluating results, a practical example will be discussed.
Maryam Fattahi and Ahmad Afshar. Observer Based Resilient Control of Networked Control Systems Against Cyber Attacks to
Sensor.
DOI: https://doi.org/10.36478/ijssceapp.2020.66.74
URL: https://www.makhillpublications.co/view-article/1997-5422/ijssceapp.2020.66.74