Networked control systems under cyber attacks with applications to power networks

Andre Teixeira, H Sandberg, K H Johansson
2010 Proceedings of the 2010 American Control Conference  
Networked control systems under certain cyber attacks are analyzed. The communication network of these control systems make them vulnerable to attacks from malicious outsiders. Our work deals with two types of attacks: attacks on the network nodes and attacks on the communication between the nodes. We propose a distributed scheme to detect and isolate the attacks using observers. Furthermore, we discuss how to reduce the number of observer nodes while maintaining the coverage of the entire
more » ... rk. The results are applied to two classes of networked control systems: a network running the consensus protocol and a power network defined by the linearized swing equation. Sufficient conditions for the existence of the proposed attack detection scheme are provided for the first class of systems. For the second class, we provide a necessary condition for the existence of the proposed detection scheme.
doi:10.1109/acc.2010.5530638 fatcat:7arrfnzambcs7nbcxfik6ch6ja