An Online Adaptation Strategy for Direct Data-driven Control
Fuente:
arXiv
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| Autores principales: | , , , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| Acceso en línea: | |
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| _version_ | 1866916410040516608 |
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| author | Teutsch, Johannes Ellmaier, Sebastian Kerz, Sebastian Wollherr, Dirk Leibold, Marion |
| author_facet | Teutsch, Johannes Ellmaier, Sebastian Kerz, Sebastian Wollherr, Dirk Leibold, Marion |
| contents | The fundamental lemma from behavioral systems theory yields a data-driven non-parametric system representation that has shown great potential for the data-efficient control of unknown linear and weakly nonlinear systems, even in the presence of measurement noise. In this work, we strive to extend the applicability of this paradigm to more strongly nonlinear systems by updating the system representation during control. Unlike existing approaches, our method does not impose suitable excitation to the control inputs, but runs as an observer parallel to the controller. Whenever a rank condition is deemed to be fulfilled, the system representation is updated using newly available datapoints. In a reference tracking simulation of a two-link robotic arm, we showcase the performance of the proposed strategy in a predictive control framework. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2304_03386 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | An Online Adaptation Strategy for Direct Data-driven Control Teutsch, Johannes Ellmaier, Sebastian Kerz, Sebastian Wollherr, Dirk Leibold, Marion Systems and Control The fundamental lemma from behavioral systems theory yields a data-driven non-parametric system representation that has shown great potential for the data-efficient control of unknown linear and weakly nonlinear systems, even in the presence of measurement noise. In this work, we strive to extend the applicability of this paradigm to more strongly nonlinear systems by updating the system representation during control. Unlike existing approaches, our method does not impose suitable excitation to the control inputs, but runs as an observer parallel to the controller. Whenever a rank condition is deemed to be fulfilled, the system representation is updated using newly available datapoints. In a reference tracking simulation of a two-link robotic arm, we showcase the performance of the proposed strategy in a predictive control framework. |
| title | An Online Adaptation Strategy for Direct Data-driven Control |
| topic | Systems and Control |
| url | https://arxiv.org/abs/2304.03386 |