Abstract
For a class of nonlinear systems with multi-source disturbances, this article discusses the problem of optimal control and anti-disturbance control. The plant considered is a nonlinear system wherein matched and mismatched disturbances exist simultaneously. A nonlinear disturbance observer (DO) is constructed to dynamical estimate and reject the matched disturbance in the input channel. In the meantime, according to optimal control theory, a controller is designed to reduce the impact of the mismatched disturbance and enhance the nonlinear system's ability to resist disturbance. Further, a stability criterion and an optimal control strategy are obtained by employing Lyapunov stability theory and adaptive dynamic programming (ADP) method. Finally, the performance of the proposed control scheme is validated through a series of comparative simulations.
| Original language | English |
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| Title of host publication | 2023 42nd Chinese Control Conference, CCC 2023 |
| Publisher | IEEE Computer Society |
| Pages | 740-744 |
| Number of pages | 5 |
| ISBN (Electronic) | 9789887581543 |
| DOIs | |
| Publication status | Published - 2023 |
| Event | 42nd Chinese Control Conference, CCC 2023 - Tianjin, China Duration: 24 Jul 2023 → 26 Jul 2023 |
Publication series
| Name | Chinese Control Conference, CCC |
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| Volume | 2023-July |
| ISSN (Print) | 1934-1768 |
| ISSN (Electronic) | 2161-2927 |
Conference
| Conference | 42nd Chinese Control Conference, CCC 2023 |
|---|---|
| Country/Territory | China |
| City | Tianjin |
| Period | 24/07/23 → 26/07/23 |
Bibliographical note
Publisher Copyright:© 2023 Technical Committee on Control Theory, Chinese Association of Automation.
Keywords
- Adaptive dynamic programming (ADP)
- Disturbance observer based control (DOBC)
- Lyapunov theory
- Multi-source disturbances
- Nonlinear systems