Control system modeling for superconducting accelerator

Tomasz Czarski; Krzysztof Pozniak; Ryszard Romaniuk; Stefan Simrock

doi:10.1117/12.714535

12 October 2006 Control system modeling for superconducting accelerator

Tomasz Czarski, Krzysztof Pozniak, Ryszard Romaniuk, Stefan Simrock

Author Affiliations +

Proceedings Volume 6347, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2006; 634709 (2006) https://doi.org/10.1117/12.714535
Event: Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2006, 2006, Wilga, Poland

Abstract

A digital control of superconducting cavities for a linear accelerator is presented. The LLRF - Low Level Radio Frequency system for FLASH project in DESY is introduced. FPGA based controller supported by MATLAB system was developed to investigate the novel firmware implementation. Algebraic model in complex domain is proposed for the system analyzing. Calibration procedure of a signal path is considered for a multi-channel control. Identification of the system parameters is carried out by the least squares method application. Control tables: Feed-Forward and Set-Point are determined for the required cavity performance, according to the recognized process. Feedback loop is tuned by fitting a complex gain of a corrector unit. Adaptive control algorithm is applied for feed-forward and feedback modes. Experimental results are presented for a cavity representative operation.

Citation Download Citation

Tomasz Czarski, Krzysztof Pozniak, Ryszard Romaniuk, and Stefan Simrock "Control system modeling for superconducting accelerator", Proc. SPIE 6347, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2006, 634709 (12 October 2006); https://doi.org/10.1117/12.714535

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