Abstract
This article studies the robust output regulation problem (RORP) for a class of uncertain linear systems with unknown exosystems via event-triggered control (ETC). Compared with existing related works, the system matrix of the exosystem under consideration is allowed to contain unknown parameters. Based on an adaptive internal model, an ETC strategy composed of an event-triggered adaptive output feedback control law and an output-based event-triggering mechanism is proposed such that the RORP is solved. It is shown that under the proposed ETC strategy, the tracking error converges to zero asymptotically in spite of the unknown exosystem, and meanwhile the occurrence of Zeno behavior is prevented. Finally, two examples are provided to illustrate the effectiveness of the proposed control strategy.
| Original language | English |
|---|---|
| Article number | 8805267 |
| Pages (from-to) | 4139-4148 |
| Number of pages | 10 |
| Journal | IEEE Transactions on Systems, Man, and Cybernetics: Systems |
| Volume | 51 |
| Issue number | 7 |
| Early online date | 19 Aug 2019 |
| DOIs | |
| Publication status | Published - Jul 2021 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2013 IEEE.
Funding
This work was supported in part by the National Natural Science Foundation of China under Grant 61773327, and in part by the Research Grants Council of the Hong Kong Special Administrative Region of China under Grant CityU/11204315.
Keywords
- Adaptive control
- event-triggered control (ETC)
- linear systems
- robust output regulation
- unknown exosystems