System identification and robust anti-windup control for a helium liquifier

Jing Na; Guang Li; Ryuji Maekawa; Luigi Serio

doi:10.1109/CONTROL.2012.6334770

System identification and robust anti-windup control for a helium liquifier

Jing Na^*, Guang Li, Ryuji Maekawa, Luigi Serio

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

1 Citation (Scopus)

Abstract

This paper addresses the system identification and advanced control of a helium (He) liquifier supplying cooling power at liquid helium (LHe) temperatures (269 °C). To study the dynamic response to heat load variation, a He liquifier simulation model is utilized. The main focus is to regulate the discharge pressure of the compressor station to guarantee stable system operation. System identification is first conducted to obtain plant models, and a two degree of freedom H∞ controller is designed to achieve regulation. Moreover, saturation of the control valve is compensated via an anti-windup technique, which is suitable for regulation problem with disturbance rejection. The effectiveness of the proposed control designs is demonstrated by dynamical simulations in EcosimPro (EA International) software.

Original language	English
Title of host publication	Proceedings of the 2012 UKACC International Conference on Control, CONTROL 2012
Pages	1007-1012
Number of pages	6
DOIs	https://doi.org/10.1109/CONTROL.2012.6334770
Publication status	Published - 26 Nov 2012
Event	2012 UKACC International Conference on Control, CONTROL 2012 - Cardiff, United Kingdom Duration: 3 Sept 2012 → 5 Sept 2012

Conference

Conference	2012 UKACC International Conference on Control, CONTROL 2012
Country/Territory	United Kingdom
City	Cardiff
Period	3/09/12 → 5/09/12

Keywords

anti-windup
disturbance rejection
Helium liquefier
robust control

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@inproceedings{ebb72fedd27d4eeb970bc26a76946662,

title = "System identification and robust anti-windup control for a helium liquifier",

abstract = "This paper addresses the system identification and advanced control of a helium (He) liquifier supplying cooling power at liquid helium (LHe) temperatures (269 °C). To study the dynamic response to heat load variation, a He liquifier simulation model is utilized. The main focus is to regulate the discharge pressure of the compressor station to guarantee stable system operation. System identification is first conducted to obtain plant models, and a two degree of freedom H∞ controller is designed to achieve regulation. Moreover, saturation of the control valve is compensated via an anti-windup technique, which is suitable for regulation problem with disturbance rejection. The effectiveness of the proposed control designs is demonstrated by dynamical simulations in EcosimPro (EA International) software.",

keywords = "anti-windup, disturbance rejection, Helium liquefier, robust control",

author = "Jing Na and Guang Li and Ryuji Maekawa and Luigi Serio",

year = "2012",

month = nov,

day = "26",

doi = "10.1109/CONTROL.2012.6334770",

language = "English",

isbn = "9781467315609",

pages = "1007--1012",

booktitle = "Proceedings of the 2012 UKACC International Conference on Control, CONTROL 2012",

note = "2012 UKACC International Conference on Control, CONTROL 2012 ; Conference date: 03-09-2012 Through 05-09-2012",

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TY - GEN

T1 - System identification and robust anti-windup control for a helium liquifier

AU - Na, Jing

AU - Li, Guang

AU - Maekawa, Ryuji

AU - Serio, Luigi

PY - 2012/11/26

Y1 - 2012/11/26

N2 - This paper addresses the system identification and advanced control of a helium (He) liquifier supplying cooling power at liquid helium (LHe) temperatures (269 °C). To study the dynamic response to heat load variation, a He liquifier simulation model is utilized. The main focus is to regulate the discharge pressure of the compressor station to guarantee stable system operation. System identification is first conducted to obtain plant models, and a two degree of freedom H∞ controller is designed to achieve regulation. Moreover, saturation of the control valve is compensated via an anti-windup technique, which is suitable for regulation problem with disturbance rejection. The effectiveness of the proposed control designs is demonstrated by dynamical simulations in EcosimPro (EA International) software.

AB - This paper addresses the system identification and advanced control of a helium (He) liquifier supplying cooling power at liquid helium (LHe) temperatures (269 °C). To study the dynamic response to heat load variation, a He liquifier simulation model is utilized. The main focus is to regulate the discharge pressure of the compressor station to guarantee stable system operation. System identification is first conducted to obtain plant models, and a two degree of freedom H∞ controller is designed to achieve regulation. Moreover, saturation of the control valve is compensated via an anti-windup technique, which is suitable for regulation problem with disturbance rejection. The effectiveness of the proposed control designs is demonstrated by dynamical simulations in EcosimPro (EA International) software.

KW - anti-windup

KW - disturbance rejection

KW - Helium liquefier

KW - robust control

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U2 - 10.1109/CONTROL.2012.6334770

DO - 10.1109/CONTROL.2012.6334770

M3 - Conference Contribution (Conference Proceeding)

AN - SCOPUS:84869456785

SN - 9781467315609

SP - 1007

EP - 1012

BT - Proceedings of the 2012 UKACC International Conference on Control, CONTROL 2012

T2 - 2012 UKACC International Conference on Control, CONTROL 2012

Y2 - 3 September 2012 through 5 September 2012

ER -

System identification and robust anti-windup control for a helium liquifier

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