Journal ArticleDOI
Event-Triggered Composite Control of a Two Time Scale System
TLDR
The theory of singular perturbation is used to decouple the system into slow and fast subsystems, and stability of the system is established and the proposed control strategy guarantees convergence of system states to an adjustable region around origin excluding the Zeno behavior.Abstract:
This brief proposes an event-triggered composite control of a two time scale system. A periodic sampling requirement is relaxed and both slow and fast states of the system decide independently when transmitting their current measurements based on a time-dependent triggering rule. The distinct feature of this scheme is that it does not require synchronized measurement updates of its slow and fast dynamics. Further, the theory of singular perturbation is used to decouple the system into slow and fast subsystems, and stability of the system is established. The proposed control strategy guarantees convergence of system states to an adjustable region around origin excluding the Zeno behavior. Simulation results manifest the effectiveness of the proposed approach.read more
Citations
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Journal ArticleDOI
Dynamic Event-Triggered State Estimation for Discrete-Time Singularly Perturbed Systems With Distributed Time-Delays
TL;DR: This paper addresses the state estimation problem for a class of discrete-time singularly perturbed systems with distributed time-delays with dynamic event-triggered scheme and proposes a design algorithm for the desired state estimator ensuring that the error dynamics is exponentially mean-square ultimately bounded.
Journal ArticleDOI
Boundary Constrained Control of Flexible String Systems Subject to Disturbances
TL;DR: The hyperbolic barrier Lyapunov function and auxiliary systems are adopted to develop boundary constrained control with a disturbance observer for restraining vibrations, eliminating input and state constraints, and tackling external disturbances.
Journal ArticleDOI
A Dynamic Event-Triggered Approach to H ∞ Control for Discrete-Time Singularly Perturbed Systems With Time-Delays and Sensor Saturations
TL;DR: A novel Lyapunov–Krasovskii functional dependent on the singular perturbation parameter (SPP) is constructed, and an output-feedback controller design scheme is developed to ensure that, for any SPP not exceeding a prescribed upper bound, the closed-loop system is asymptotically stable with a guaranteed performance index.
Journal ArticleDOI
Observer-based event-triggered control for singularly perturbed systems with saturating actuator
Journal ArticleDOI
Security Control for Multi-Time-Scale CPSs Under DoS Attacks: An Improved Dynamic Event-Triggered Mechanism
TL;DR: An improved dynamic ETM is proposed, with which the closed-loop system can achieve a better control performance than traditional dynamic ETMs in the transient process and cope with the ill-conditioned numerical issues generated by the MTSF.
References
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Proceedings ArticleDOI
A decomposition of near-optimum regulators for systems with slow and fast modes
Joe H. Chow,Petar V. Kokotovic +1 more
TL;DR: In this article, conditions for complete separation of slow and fast regulator designs are formulated and a second order approximation of the optimal performance is achieved without the knowledge of the small singular perturbation parameter.
Singular perturbations and time scales in control theory and applications: An overview
TL;DR: This paper presents an overview of singular perturbations and time scales (SPaTS) in control theory and applications during the period 1984-2001 and is not intended to be an exhaustive survey on the topic.
Journal ArticleDOI
Decentralized Event-Triggering for Control of Nonlinear Systems
TL;DR: A methodology for designing decentralized asynchronous event-triggers, which utilize only locally available information, for determining the time instants of transmission from the sensors to the central controller is presented.
Journal ArticleDOI
Asynchronous decentralized event-triggered control
Manuel Mazo,Ming Cao +1 more
TL;DR: In the proposed implementation of controllers with decentralized strategies triggering controller updates, the communication between nodes requires only the exchange of one bit of information (per controller update), which could aid in reducing transmission delays and as a secondary effect result in fewer transmissions being triggered.
Journal ArticleDOI
Distributed event-based control strategies for interconnected linear systems
TL;DR: This study presents distributed event-based control strategies for a networked dynamical system consisting of N linear time-invariant interconnected subsystems and a novel model-based approach is derived to reduce the communication between the agents.