7–11 Sept 2025
Teaching Hub 502
Europe/London timezone

Model-based Optimal Control Design for The Orbit Feedback System at the Siam Photon Source

TUPMO27
9 Sept 2025, 16:00
2h
Mountford Hall, Liverpool Guild of Students

Mountford Hall, Liverpool Guild of Students

Liverpool Guild of Students, University of Liverpool
Poster Presentation MC06: Feedback Systems and Beam Stability TUPMO

Speaker

Thakonwat Chanwattana (Synchrotron Light Research Institute)

Description

A model-based optimal control approach has been developed for the slow orbit feedback (SOFB) system to enhance orbit stability in the Siam Photon Source (SPS) storage ring. The control strategy utilizes a linear quadratic regulator (LQR) based on a multi-input, multi-output (MIMO) state-space model of the linear SPS storage ring, derived through system identification using MATLAB and SIMULINK. The necessary and sufficient conditions for controllability and boundedness of the dynamic system are established. Experimental simulations were conducted to assess the performance of the LQR controller in a practical SPS storage ring. The results demonstrate that the proposed control method effectively minimizes the quadratic cost function and error signals between setpoints and process variables for both horizontal and vertical orbit positions while ensuring system stability and robustness. The study also outlines the fundamental principles of optimal control theory, system identification, and future development directions.

Footnotes

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Funding Agency

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Author

Supat Klinkhieo (Synchrotron Light Research Institute)

Co-authors

Nattawat Yachum (Synchrotron Light Research Institute) Natthawut Suradet (Synchrotron Light Research Institute) Somjai Chunjarean (Synchrotron Light Research Institute) Surapong Kokkrathoke (Synchrotron Light Research Institute) Thakonwat Chanwattana (Synchrotron Light Research Institute) Thapakron Pulampong (Synchrotron Light Research Institute)

Presentation materials

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