Output Feedback Control for Networked Switched Systems Under Multiple Attacks with Dynamic Event-Triggered Approach

This paper mainly studies the security control of networked switched systems in smart grid under multiple attacks. To reduce unnecessary data transmission, two dynamic event-triggered generators are deployed in the sensor-controller (S-C) channel and controller-actuator (C-A) channel, respectively. In the concerned system, both S-C channel and C-A channel suffer from denial-of-service (DoS) attacks and replay attacks. In addition, a multiple attack model and an output feedback controller considering dynamic event trigger are constructed. Sufficient conditions to ensure the mean square exponential stable of networked switched systems are derived. Moreover, we provide the desired design method of observer-based output feedback controller. Finally, an example of switched system which includes two subsystems is utilized to demonstrate the effectiveness of proposed method.