Low-level feedback control for the phase regulation of CLIC Drive Beam Klystrons

The requirement of luminosity loss below 1% raises tight tolerances for the phase and power stability of the CLIC drive beam (DB) klystrons and consequently for the high voltage pulse ripple of the modulators. A low-level RF (LLRF) feedback system needs to be developed and combined with the modulato...

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Detalles Bibliográficos
Autores principales: Daskalaki, Eleni, Doebert, Steffen
Lenguaje:eng
Publicado: 2015
Materias:
Accelerators and Storage Rings
Acceso en línea:http://cds.cern.ch/record/2065708
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author Daskalaki, Eleni
Doebert, Steffen
author_facet Daskalaki, Eleni
Doebert, Steffen
author_sort Daskalaki, Eleni
collection CERN
description The requirement of luminosity loss below 1% raises tight tolerances for the phase and power stability of the CLIC drive beam (DB) klystrons and consequently for the high voltage pulse ripple of the modulators. A low-level RF (LLRF) feedback system needs to be developed and combined with the modulator in order to guarantee the phase and amplitude tolerances. To this aim, three feedback control strategies were investigated, i) Proportional Integral (PI) controller, ii) Linear Quadratic Integral Regulator (LQI) and iii) Model Predictive Controller (MPC). The klystron, as well as the incident phase noise were modelled and used for the design and evaluation of the controllers. First simulation results are presented along with future steps and directions.
id cern-2065708
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
record_format invenio
spelling cern-20657082023-07-20T15:06:52Zhttp://cds.cern.ch/record/2065708engDaskalaki, EleniDoebert, SteffenLow-level feedback control for the phase regulation of CLIC Drive Beam KlystronsAccelerators and Storage RingsThe requirement of luminosity loss below 1% raises tight tolerances for the phase and power stability of the CLIC drive beam (DB) klystrons and consequently for the high voltage pulse ripple of the modulators. A low-level RF (LLRF) feedback system needs to be developed and combined with the modulator in order to guarantee the phase and amplitude tolerances. To this aim, three feedback control strategies were investigated, i) Proportional Integral (PI) controller, ii) Linear Quadratic Integral Regulator (LQI) and iii) Model Predictive Controller (MPC). The klystron, as well as the incident phase noise were modelled and used for the design and evaluation of the controllers. First simulation results are presented along with future steps and directions.CERN-ACC-2015-0138CLIC-Note-1055oai:cds.cern.ch:20657082015-09-17
spellingShingle Accelerators and Storage Rings
Daskalaki, Eleni
Doebert, Steffen
Low-level feedback control for the phase regulation of CLIC Drive Beam Klystrons
title Low-level feedback control for the phase regulation of CLIC Drive Beam Klystrons
title_full Low-level feedback control for the phase regulation of CLIC Drive Beam Klystrons
title_fullStr Low-level feedback control for the phase regulation of CLIC Drive Beam Klystrons
title_full_unstemmed Low-level feedback control for the phase regulation of CLIC Drive Beam Klystrons
title_short Low-level feedback control for the phase regulation of CLIC Drive Beam Klystrons
title_sort low-level feedback control for the phase regulation of clic drive beam klystrons
topic Accelerators and Storage Rings
url http://cds.cern.ch/record/2065708
work_keys_str_mv AT daskalakieleni lowlevelfeedbackcontrolforthephaseregulationofclicdrivebeamklystrons
AT doebertsteffen lowlevelfeedbackcontrolforthephaseregulationofclicdrivebeamklystrons

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