Proceedings ArticleDOI
Event-triggered dynamic output feedback control for LTI systems
Pavankumar Tallapragada,Nikhil Chopra +1 more
- pp 6597-6602
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A systematic methodology for designing implicitly verified event-triggered dynamic output feedback controllers for LTI systems that are observable and controllable and it is demonstrated that the triggering conditions provide a global lower bound on the inter-sample times and guarantee asymptotic stability of the closed loop system.Abstract:
In this paper we propose a systematic methodology for designing implicitly verified event-triggered dynamic output feedback controllers for LTI systems that are observable and controllable. Event-triggering conditions that depend only on local information are proposed for sampled-data implementation of the observer and the controller in three different architectures. It is demonstrated that the triggering conditions provide a global lower bound on the inter-sample times and guarantee asymptotic stability of the closed loop system. The proposed design methodology is illustrated through simulation results.read more
Citations
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Journal ArticleDOI
Networked control systems: a survey of trends and techniques
TL;DR: A survey of trends and techniques in networked control systems from the perspective of ‘ control over networks ’ is presented, providing a snapshot of five control issues: sampled-data control, quantization control, networking control, event-triggered control, and security control.
Journal ArticleDOI
Output-Based and Decentralized Dynamic Event-Triggered Control With Guaranteed $\mathcal{L}_{p}$- Gain Performance and Zeno-Freeness
TL;DR: A novel event-triggered control (ETC) strategy for a class of nonlinear feedback systems is proposed that can simultaneously guarantee a finite Lp-gain and a strictly positive lower bound on the inter-event times.
Journal ArticleDOI
Event-separation properties of event-triggered control systems
TL;DR: It is shown that for several popular event-triggering mechanisms no positive minimum inter-event time can be guaranteed in the presence of arbitrary small external disturbances or measurement noise, and it is essential to include the effects of external disturbances and measurement noise in the analysis of the computation/communication properties of event-triggered control systems.
Journal ArticleDOI
Event-Triggered $H_{\infty}$ Control: A Switching Approach
Anton Selivanov,Emilia Fridman +1 more
TL;DR: In this article, a switching approach for finding a waiting time in the event-triggered mechanism is proposed to exploit the advantage of the continuous-time measurements and guarantee a positive lower bound on the inter-event times.
Journal ArticleDOI
Robust event-triggered output feedback controllers for nonlinear systems
TL;DR: The robust stabilization of nonlinear systems subject to exogenous inputs using event-triggered output feedback laws is addressed using time-driven (and so periodic) sampling as a particular case, for which the results are new.
References
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Journal ArticleDOI
Event-Triggered Real-Time Scheduling of Stabilizing Control Tasks
TL;DR: This note investigates a simple event-triggered scheduler based on the paradigm that a real-time scheduler could be regarded as a feedback controller that decides which task is executed at any given instant and shows how it leads to guaranteed performance thus relaxing the more traditional periodic execution requirements.
Journal ArticleDOI
Analysis of event-driven controllers for linear systems
TL;DR: This paper considers an event-driven control scheme for perturbed linear systems that triggers the control update only when the tracking or stabilization error is large, so that the average processor and/or communication load can be reduced significantly.
Journal ArticleDOI
Self-Triggered Feedback Control Systems With Finite-Gain ${\cal L}_{2}$ Stability
Xiaofeng Wang,Michael D. Lemmon +1 more
TL;DR: Empirical simulations used to demonstrate that self-triggered control systems can be remarkably robust to task delay are used to derive bounds on a task's sampling period and deadline to quantify how robust the system's performance will be to variations in these parameters.
Proceedings ArticleDOI
Output-based event-triggered control with Guaranteed ℒ ∞ -gain and improved event-triggering
TL;DR: This paper will propose an event-triggering mechanism that invokes execution of the control task when the difference between the measured output or the control input of the plant or controller becomes ‘large’ compared to its current value and an additional threshold.
Proceedings ArticleDOI
Event-based output-feedback control
Daniel Lehmann,Jan Lunze +1 more
TL;DR: The analysis shows that by incorporating a state observer in the event generator, a stable behavior of the event-based control loop can be guaranteed and it will be shown that the maximum communication frequency within the control loop is bounded.