Application of Discretized Super-Twisting Control to Magnetic Resonance Imaging Patient Positioning Systems
In this paper, a discrete-time super-twisting controller is applied to the horizontal patient positioning of an magnetic resonance imaging system and compared to a cascaded feedback loop structure using PI controllers. Utilizing a simplified mathematical description of the system, a super-twisting controller with compensation is derived and convergence in finite time is shown. Both controllers are systematically tuned and the closed-loop system performance is evaluated, utilizing computer simulation and a Hardware-in-the-Loop test setup. The super-twisting controller is shown to improve the positioning performance of the system significantly.
Authors
- Martin Horn (ORCID: https://orcid.org/0000-0002-5845-1061)
- Markus Reichhartinger (ORCID: https://orcid.org/0000-0003-4681-9575)
- Nicola Contartese (ORCID: https://orcid.org/0000-0002-0301-6986)
- Michael Zapf (ORCID: https://orcid.org/0000-0001-9218-1707)
- Stefan Koch (ORCID: https://orcid.org/0000-0003-3579-4229)
- Benedikt Andritsch (ORCID: https://orcid.org/0000-0001-5026-327X)
Institutions
- Graz University of Technology (AT)
- Virtual Vehicle Research GmbH (Austria) (AT)
- Siemens Healthineers (Germany) (DE)
Publication Details
- Published
- 2024-10-21
- DOI
- https://doi.org/10.1109/vss61690.2024.10753412
- Citations
- 1
- Primary Topic
- Advanced MRI Techniques and Applications
- Type
- article
- Field-Weighted Citation Impact
- 0.40