Networked switched system has emerged as an essential system model in the field of control due to its accurate reflection of the wide-area distribution and typical switching characteristics of increasingly sophisticated controlled objects in engineering practice. The openness of communication networks, the limitation of communication resources, and the complexity of switching behaviors make it a challenging task to ensure the steady-state and transient performance of the output regulation of networked switched systems.
This book proposes several novel methodologies for output regulation of networked switched systems from the perspective of both steady-state and transient performance. The core features of our approaches are fourfold: i) Without imposing stability requirements on individual subsystems and all switching instants, a series of innovative dwell-time switching technologies are established to handle the issue of output regulation for networked switched systems with severely unstable dynamics under event-triggering strategies in the presence of cyber attacks. ii) Taking into account switching rules and cyber attack parameters within the event-triggered control framework, event detection conditions, modal matching conditions, and event waiting conditions are constructed, and a series of new event-triggering mechanisms are proposed to effectively enhance network resource utilization and secure steady-state performance of networked switched systems. iii) Typical cyber attacks have unique consequences on the secure steady-state performance of networked switched systems with severely unstable dynamics due to the short activation time of a single subsystem and the necessity to relay the switching signal through the network. To this purpose, the consecutive asynchronous switching behaviors of the subsystem or controller resulting from a long-duration DoS attack or an integrity deception attack incorporating switching signal tampering are investigated. iv) To deal with the transient performance fluctuations of the closed-loop system caused by factors such as mismatch switching between the subsystem and the corresponding controller, data update at event-triggering instants, cyber attack blocking and tampering of transmitted data, etc., bumpless transfer control strategies are formulated in the interpolation type and multi-source type, balancing the transient and steady-state performances of the output regulation of networked switched systems. This book presents these topics in a systematic way, which is of tremendous importance to both theoretical research and practical applications involving switched systems.
Author(s): Lili Li, Jun Fu
Series: Studies in Systems, Decision and Control, 475
Publisher: Springer
Year: 2023
Language: English
Pages: 209
City: Cham
Acknowledgements
Contents
1 Introduction
1.1 Background
1.2 Status of Research
1.2.1 Current Status of Switching Rules Design for Switched Systems
1.2.2 Research Status of Event-Triggered Control in Switched System
1.2.3 Research Status of Security Control in Switched Systems
1.2.4 Research Status of the Bumpless Transfer Control of Switched Systems
1.2.5 Research Status of Output Regulation Problems in Switched Systems
1.3 Proposed Problem Solving
1.4 Basic Definitions and Lemmas
1.5 Organization of the Book
References
2 Event-Triggered Output Regulation for Networked Flight Control System Based on an Asynchronous Switched System Approach
2.1 Introduction
2.2 Flight Control System Modelling
2.3 Problem Formulation and Preliminaries
2.3.1 Error Feedback Controller
2.3.2 Alternate Event-Triggered Communication Scheme
2.3.3 Error Feedback Controller with Alternate Event-Triggered Mechanism
2.3.4 Modeling of the Closed-Loop System
2.3.5 Event-Triggered Asynchronous Output Regulation Problem
2.4 Main Results
2.5 Illustrative Example
2.6 Conclusion
References
3 Output Regulation for Networked Switched Systems with Alternate Event-Triggered Control Under Transmission Delays and Packet Losses
3.1 Introduction
3.2 Problem Formulation
3.2.1 System Model and Asynchronous Controller Structure
3.2.2 Alternate Event-Triggered Mechanism with the Alternate Property
3.2.3 The Error Feedback Controller Based on the Alternate Event-Triggered Mechanism
3.2.4 The Resultant Closed-Loop Switched System
3.2.5 The Event-Triggered Output Regulation Problem Formulation
3.3 Main Results
3.3.1 Event-Triggered Output Regulation Problem with Transmission Delays
3.3.2 Event-Triggered Output Regulation Problem with Both Transmission Delays and Packet Losses
3.4 Comparison with Existing Results
3.5 Application to an F-18 Aircraft Model
3.6 Conclusion
References
4 Memory-Based Event-Triggered Output Regulation for Networked Switched Systems with Severely Unstable Dynamics
4.1 Introduction
4.2 Problem Formulation
4.2.1 System Modelling
4.2.2 Event-Triggered Mechanisms
4.2.3 Dynamic Output Feedback Controller with Event-Triggered Mechanisms
4.2.4 The Closed-Loop System
4.3 Main Results
4.3.1 Event-Triggered Asynchronous Output Regulation Problem with Only Network-Induced Delays
4.3.2 Event-Triggered Asynchronous Output Regulation Problem in the Presence of Network-Induced Delays, Packet Disorders, Packet Losses
4.4 Simulation Example
4.5 Conclusion
References
5 Almost Output Regulation for Switched Linear Systems with Bumpless Transfer Control Under Destabilizing Behaviors
5.1 Introduction
5.2 Problem Formulation
5.3 Main Results
5.4 Numerical Example
5.5 Conclusion
References
6 Mixed Event-Triggered Output Regulation for Networked Switched Systems with Severely Unstable Dynamics Under Long-Duration DoS Attacks
6.1 Introduction
6.2 Problem Formulation
6.2.1 System Model and Dynamic Output Feedback Controller
6.2.2 Long-Duration Denial-of-Service Attacks
6.2.3 Mixed Event-Triggered Mechanisms
6.2.4 The Closed-Loop Networked Switched System
6.2.5 Event-Triggered Output Regulation Problem
6.3 Main Results
6.4 Simulation Example
6.5 Conclusion
References
7 Dissipative Event-Triggered Output Regulation for Networked Switched Systems with Severely Unstable Dynamics Against Integrity Deception Attacks
7.1 Introduction
7.2 Problem Formulation
7.2.1 System Model and Dynamic Output Feedback Controller
7.2.2 Integrity Deception Attacks
7.2.3 Resilient Event-Triggered Mechanisms
7.2.4 Dynamic Output Feedback Controller Based on Resilient Event-Triggered Mechanisms
7.2.5 The Closed-Loop Networked Switched System
7.2.6 Event-Triggered Output Regulation Problem with Dissipative Property
7.3 Main Results
7.4 Simulation Example
7.5 Conclusion
References
8 Event-Triggered Multi-source Bumpless Transfer Control for Networked Switched Systems with Almost Output Regulation Against Switching Deception Attacks
8.1 Introduction
8.2 Problem Formulation
8.2.1 System Modelling
8.2.2 Event-Triggered Mechanism
8.2.3 Controllers Under Switching Deception Attacks
8.2.4 The Closed-Loop Switched System
8.2.5 Multi-source Bumpless Transfer Performance
8.2.6 Control Objectives
8.3 Main Results
8.3.1 Solvable Conditions for Almost Output Regulation of Unstable Switched Systems
8.3.2 Solvable Conditions for Bumpless Transfer Problems of Unstable Switched Systems
8.4 Simulation Example
8.5 Conclusion
References
9 Conclusions
