Application of disturbance observer-based control in low-level radio-frequency system in a compact energy recovery linac at KEK

A disturbance observer (DOB)-based control for a digital low-level radio-frequency (LLRF) system in a compact energy recovery linac (cERL) at KEK has been developed. The motivation for this control approach is to compensate for or suppress the disturbance signal in the rf system such as beam loading...
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Gespeichert in:

Autor*in:	Feng Qiu [verfasserIn] Shinichiro Michizono [verfasserIn] Takako Miura [verfasserIn] Toshihiro Matsumoto [verfasserIn] Mathieu Omet [verfasserIn] Basuki Wibowo Sigit [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2015

Übergeordnetes Werk:	In: Physical Review Special Topics. Accelerators and Beams - American Physical Society, 2003, 18(2015), 9, p 092801
Übergeordnetes Werk:	volume:18 ; year:2015 ; number:9, p 092801

Links:	Link aufrufen Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1103/PhysRevSTAB.18.092801

Katalog-ID:	DOAJ075691884

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520			\|a A disturbance observer (DOB)-based control for a digital low-level radio-frequency (LLRF) system in a compact energy recovery linac (cERL) at KEK has been developed. The motivation for this control approach is to compensate for or suppress the disturbance signal in the rf system such as beam loading, power supply ripples, and microphonics. Disturbance signals in specified frequency ranges were observed and reconstructed accurately in the field-programmable gate array and were then removed in the feedforward model in real time. The key component in this DOB controller is a disturbance observer, which includes the inverse mathematical model of the rf plant. In this paper, we have designed a DOB control-based approach in order to improve the LLRF system performance in disturbance rejection. We have confirmed this approach in the cERL beam commissioning.
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allfieldsSound	10.1103/PhysRevSTAB.18.092801 doi (DE-627)DOAJ075691884 (DE-599)DOAJc248bed04ae64b54bb7565a6dc3832d4 DE-627 ger DE-627 rakwb eng QC770-798 Feng Qiu verfasserin aut Application of disturbance observer-based control in low-level radio-frequency system in a compact energy recovery linac at KEK 2015 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier A disturbance observer (DOB)-based control for a digital low-level radio-frequency (LLRF) system in a compact energy recovery linac (cERL) at KEK has been developed. The motivation for this control approach is to compensate for or suppress the disturbance signal in the rf system such as beam loading, power supply ripples, and microphonics. Disturbance signals in specified frequency ranges were observed and reconstructed accurately in the field-programmable gate array and were then removed in the feedforward model in real time. The key component in this DOB controller is a disturbance observer, which includes the inverse mathematical model of the rf plant. In this paper, we have designed a DOB control-based approach in order to improve the LLRF system performance in disturbance rejection. We have confirmed this approach in the cERL beam commissioning. Nuclear and particle physics. Atomic energy. Radioactivity Shinichiro Michizono verfasserin aut Takako Miura verfasserin aut Toshihiro Matsumoto verfasserin aut Mathieu Omet verfasserin aut Basuki Wibowo Sigit verfasserin aut In Physical Review Special Topics. Accelerators and Beams American Physical Society, 2003 18(2015), 9, p 092801 (DE-627)306359588 (DE-600)1497130-6 10984402 nnns volume:18 year:2015 number:9, p 092801 https://doi.org/10.1103/PhysRevSTAB.18.092801 kostenfrei https://doaj.org/article/c248bed04ae64b54bb7565a6dc3832d4 kostenfrei http://doi.org/10.1103/PhysRevSTAB.18.092801 kostenfrei http://doi.org/10.1103/PhysRevSTAB.18.092801 kostenfrei https://doaj.org/toc/1098-4402 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2006 GBV_ILN_2009 GBV_ILN_2014 GBV_ILN_2021 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 18 2015 9, p 092801
language	English
source	In Physical Review Special Topics. Accelerators and Beams 18(2015), 9, p 092801 volume:18 year:2015 number:9, p 092801
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author	Feng Qiu
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topic_title	QC770-798 Application of disturbance observer-based control in low-level radio-frequency system in a compact energy recovery linac at KEK
topic	misc QC770-798 misc Nuclear and particle physics. Atomic energy. Radioactivity
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title	Application of disturbance observer-based control in low-level radio-frequency system in a compact energy recovery linac at KEK
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title_sort	application of disturbance observer-based control in low-level radio-frequency system in a compact energy recovery linac at kek
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title_auth	Application of disturbance observer-based control in low-level radio-frequency system in a compact energy recovery linac at KEK
abstract	A disturbance observer (DOB)-based control for a digital low-level radio-frequency (LLRF) system in a compact energy recovery linac (cERL) at KEK has been developed. The motivation for this control approach is to compensate for or suppress the disturbance signal in the rf system such as beam loading, power supply ripples, and microphonics. Disturbance signals in specified frequency ranges were observed and reconstructed accurately in the field-programmable gate array and were then removed in the feedforward model in real time. The key component in this DOB controller is a disturbance observer, which includes the inverse mathematical model of the rf plant. In this paper, we have designed a DOB control-based approach in order to improve the LLRF system performance in disturbance rejection. We have confirmed this approach in the cERL beam commissioning.
abstractGer	A disturbance observer (DOB)-based control for a digital low-level radio-frequency (LLRF) system in a compact energy recovery linac (cERL) at KEK has been developed. The motivation for this control approach is to compensate for or suppress the disturbance signal in the rf system such as beam loading, power supply ripples, and microphonics. Disturbance signals in specified frequency ranges were observed and reconstructed accurately in the field-programmable gate array and were then removed in the feedforward model in real time. The key component in this DOB controller is a disturbance observer, which includes the inverse mathematical model of the rf plant. In this paper, we have designed a DOB control-based approach in order to improve the LLRF system performance in disturbance rejection. We have confirmed this approach in the cERL beam commissioning.
abstract_unstemmed	A disturbance observer (DOB)-based control for a digital low-level radio-frequency (LLRF) system in a compact energy recovery linac (cERL) at KEK has been developed. The motivation for this control approach is to compensate for or suppress the disturbance signal in the rf system such as beam loading, power supply ripples, and microphonics. Disturbance signals in specified frequency ranges were observed and reconstructed accurately in the field-programmable gate array and were then removed in the feedforward model in real time. The key component in this DOB controller is a disturbance observer, which includes the inverse mathematical model of the rf plant. In this paper, we have designed a DOB control-based approach in order to improve the LLRF system performance in disturbance rejection. We have confirmed this approach in the cERL beam commissioning.
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title_short	Application of disturbance observer-based control in low-level radio-frequency system in a compact energy recovery linac at KEK
url	https://doi.org/10.1103/PhysRevSTAB.18.092801 https://doaj.org/article/c248bed04ae64b54bb7565a6dc3832d4 http://doi.org/10.1103/PhysRevSTAB.18.092801 https://doaj.org/toc/1098-4402
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up_date	2024-07-03T16:18:12.192Z
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Application of disturbance observer-based control in low-level radio-frequency system in a compact energy recovery linac at KEK

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