München 2019 – wissenschaftliches Programm

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 15: Poster session

AKBP 15.25: Poster

Donnerstag, 21. März 2019, 16:30–18:00, Durchgangshalle

Auto-Tuning of PI-Controllers for the RF Control at the S-DALINAC* — •M. Steinhorst, M. Arnold, and N. Pietralla — Institut für Kernphysik, TU Darmstadt, Darmstadt

The recirculating superconducting Darmstadt linear accelerator S-DALINAC [1] is one of the main research instruments at the institute for nuclear physics at the TU Darmstadt. It is operating in cw-mode at beam currents of up to 60 uA and energies of up to 130 MeV. In 2010 the current digital low-level rf control system was set into operation. The system is using PI-controllers to tune amplitude and phase of the rf accelerating field. For PI-controllers an important part is the proper tuning of the controller gains to minimize residual errors. These controller gains are normally not time invariant. Currently the tuning of the controller gains is done manually. It is planned to implement a scheme in the future future to automatically tune the controller gains to reach local minima of the residual errors in terms of phase and amplitude. This contribution is presenting a possible scheme and first results.
Supported by the DFG through GRK 2128.
[1] N. Pietralla, Nucl. Phys. News 28 No. 2, 4 (2018).