Name
Abstract | ||
|---|---|---|
In event-triggered control (ETC) systems, the measured state or output of the plant is sent to the controller at so-called event times. In many ETC systems, these event times are generated based on a static function of the current state or output measurement of the system and its sampled-and-held version that is available to the controller. Hence, the event-generator does not include any dynamics of its own. In contrast, dynamic event-generators trigger events based on additional dynamic variables, whose dynamics depend on the state or output of the system. In this paper, we propose new static and dynamic continuous event-generators (which require continuous measuring of the plant output) and periodic event-generators (which only require periodic sampling of the plant output) for linear control systems with communication delays. All event-generators we propose lead to closed-loop systems which are globally exponentially stable with a guaranteed decay rate, L 2 -stable with a guaranteed L 2 -gain, and have a guaranteed positive minimum inter-event time. By using new Riccati-based analysis tools tailored to linear systems, the conservatism in our decay rate and L 2 -gain estimates is small. The dynamic event-generators even further reduce this conservatism, and as a result typically generate significantly fewer events than their static counterparts, while guaranteeing the same control performance. The benefits of these new event-generators are demonstrated via two numerical examples. |
Year | DOI | Venue |
|---|---|---|
2018 | 10.1109/TAC.2017.2713047 | IEEE Trans. Automat. Contr. |
Keywords | Field | DocType |
Delays,Closed loop systems,Vehicle dynamics,Linear systems,Current measurement,Asymptotic stability | Analysis tools,Control theory,Linear system,Control theory,Vehicle dynamics,Event triggered,Exponential stability,Sampling (statistics),Periodic graph (geometry),Mathematics | Journal |
Volume | Issue | ISSN |
63 | 1 | 0018-9286 |
Citations | PageRank | References |
11 | 0.49 | 23 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Dominicus P. Borgers | 1 | 45 | 4.36 |
| Dolk, V.S. | 2 | 109 | 7.47 |
| W. P. M. H. Heemels | 3 | 2436 | 194.41 |