JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{tavares:icalepcs2023-mo3ao03,
author = {D.O. Tavares and M.S. Aguiar and F.H. Cardoso and E.P. Coelho and G.R. Cruz and A.F. Giachero and L. Lin and S.R. Marques and A.C.S. Oliveira and G.S. Ramirez and É.N. Rolim and L.M. Russo and F.H. de Sá},
% author = {D.O. Tavares and M.S. Aguiar and F.H. Cardoso and E.P. Coelho and G.R. Cruz and A.F. Giachero and others},
% author = {D.O. Tavares and others},
title = {{Commissioning and Optimization of the SIRIUS Fast Orbit Feedback}},
% booktitle = {Proc. ICALEPCS'23},
booktitle = {Proc. 19th Int. Conf. Accel. Large Exp. Phys. Control Syst. (ICALEPCS'23)},
eventdate = {2023-10-09/2023-10-13},
pages = {123--130},
paper = {MO3AO03},
language = {english},
keywords = {controls, feedback, power-supply, operation, network},
venue = {Cape Town, South Africa},
series = {International Conference on Accelerator and Large Experimental Physics Control Systems},
number = {19},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {02},
year = {2024},
issn = {2226-0358},
isbn = {978-3-95450-238-7},
doi = {10.18429/JACoW-ICALEPCS2023-MO3AO03},
url = {https://jacow.org/icalepcs2023/papers/mo3ao03.pdf},
abstract = {{The Sirius Fast Orbit Feedback System (FOFB) entered operation for users in November 2022. The system design aimed at minimizing the overall feedback loop delay, understood as the main performance bottleneck in typical FOFB systems. Driven by this goal, the loop update rate was chosen as high as possible, real-time processing was entirely done in FPGAs, BPMs and corrector power supplies were tightly integrated to the feedback controllers in MicroTCA crates, a small number of BPMs was included in the feedback loop and a dedicated network engine was used. These choices targeted a disturbance rejection crossover frequency of 1 kHz. To deal with the DC currents that build up in the fast orbit corrector power supplies, a method to transfer the DC control effort to the Slow Orbit Feedback System (SOFB) running in parallel was implemented. This contribution gives a brief overview of the system architecture and modelling, and reports on its commissioning, system identification and feedback loop optimization during its first year of operation. }},
}