Reliable cooperative control and plug-and-play operation for networked heterogeneous systems under cyber-physical...

Area of Science:

• Control Systems Engineering
• Networked Systems Security
• Cyber-Physical Systems

Background:

• Networked heterogeneous systems (NHSs) face vulnerabilities from physical attack-induced actuator failures and Denial-of-Service (DoS) attacks.
• Ensuring reliable cooperative control and plug-and-play operation in such compromised systems is a significant challenge.

Purpose of the Study:

• To develop a robust control strategy for NHSs against combined actuator failures and DoS attacks.
• To ensure leader-follower consensus and plug-and-play capabilities in attacked NHSs.
• To enhance system resilience without imposing constraints on DoS attack frequency or duration.

Main Methods:

• A novel self-feedback control with an adaptive integral sliding-mode compensator is proposed.
• Systems are configured as passivity-short (PS) to quantify attack impact.
• A cloud-network-based distributed control enhances DoS robustness.
• The impact equivalence principle is used to derive a technical condition for control synthesis.

Main Results:

• The proposed self-feedback and network-level controls, designed separately but integrated, ensure leader-follower consensus and plug-and-play operation.
• The method demonstrates effectiveness against physical attack-induced actuator failures/uncertainties and DoS attacks.
• Robustness against DoS attacks is achieved without frequency or duration limitations.

Conclusions:

• The developed control strategy effectively addresses reliable cooperative control and plug-and-play operation in attacked NHSs.
• The passivity-short index provides a quantifiable measure of system vulnerability.
• The approach is validated through simulations on flight control systems, confirming its practical applicability.