Dissipativity-Based Secure Output Regulation in Networked Switched Systems With Long-Duration Zero-Value Attacks

The secure output regulation (OR) problem is formulated for networked switched systems (SSs) with severely unstable dynamics that are subjected to long-duration zero-value (LDZV) attacks. For these systems, well-defined switching rules enable the severely unstable dynamics to achieve stability and OR by allowing each subsystem to dwell for a short period. However, during LDZV attacks, the system's external variables (inputs and outputs) are set to zero for a long period. Given the presence of severely unstable dynamics, it becomes impossible to construct reliable switching rules that guarantee security, stability and OR by merely extending the dwell time. In this scenario, specific system internal parameters, such as dissipativity parameters, can be leveraged in designing a secure control scheme to address the cumulative impacts of LDZV attacks and severely unstable dynamics. Thereby, event-triggered protocols and switching rules are designed from the dissipativity context. Finally, the secure OR solvability is verified using an aero-engine.