Control Challenges

This chapter aims to provide an overview of resilient control systems, including cross-layer trade-offs between security at the cyber layer and resiliency at the physical layer, including ex-ante planning, interim operation, and ex-post recovery, the games-in-games design paradigm for the multistage and multilayer design of resilient control systems, and control challenges for distributed control systems. Modern control systems are equipped with information system technologies that can provide situational awareness of the plant and enable a fast response to emergency and security breaches. The cost for reboot depends on whether the control system is well equipped with computational resources and human resources to enable the fast response. A natural control framework to capture the multistage features of resilient control systems is model-predictive control or moving-horizon techniques. Game-theoretic approaches have also addressed the resilient design of control systems.