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Title: Dynamic PID loop control

Abstract

The Horizontal Test Stand (HTS) SRF Cavity and Cryomodule 1 (CM1) of eight 9-cell, 1.3GHz SRF cavities are operating at Fermilab. For the cryogenic control system, how to hold liquid level constant in the cryostat by regulation of its Joule-Thompson JT-valve is very important after cryostat cool down to 2.0 K. The 72-cell cryostat liquid level response generally takes a long time delay after regulating its JT-valve; therefore, typical PID control loop should result in some cryostat parameter oscillations. This paper presents a type of PID parameter self-optimal and Time-Delay control method used to reduce cryogenic system parameters oscillation.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1022777
Report Number(s):
FERMILAB-CONF-11-247-AD
TRN: US1104143
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Conference
Resource Relation:
Conference: Presented at Cryogenic Engineering Conference and International Cryogenic Materials Conference CEC-ICMC 2011, Spokane, Washington, 13-17 June 2011
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; CAVITIES; CONTROL SYSTEMS; CRYOGENICS; CRYOSTATS; FERMILAB; OSCILLATIONS; REGULATIONS; TIME DELAY; Accelerators

Citation Formats

Pei, L, Klebaner, A, Theilacker, J, Soyars, W, Martinez, A, Bossert, R, DeGraff, B, Darve, C, and /Fermilab. Dynamic PID loop control. United States: N. p., 2011. Web.
Pei, L, Klebaner, A, Theilacker, J, Soyars, W, Martinez, A, Bossert, R, DeGraff, B, Darve, C, & /Fermilab. Dynamic PID loop control. United States.
Pei, L, Klebaner, A, Theilacker, J, Soyars, W, Martinez, A, Bossert, R, DeGraff, B, Darve, C, and /Fermilab. 2011. "Dynamic PID loop control". United States. https://www.osti.gov/servlets/purl/1022777.
@article{osti_1022777,
title = {Dynamic PID loop control},
author = {Pei, L and Klebaner, A and Theilacker, J and Soyars, W and Martinez, A and Bossert, R and DeGraff, B and Darve, C and /Fermilab},
abstractNote = {The Horizontal Test Stand (HTS) SRF Cavity and Cryomodule 1 (CM1) of eight 9-cell, 1.3GHz SRF cavities are operating at Fermilab. For the cryogenic control system, how to hold liquid level constant in the cryostat by regulation of its Joule-Thompson JT-valve is very important after cryostat cool down to 2.0 K. The 72-cell cryostat liquid level response generally takes a long time delay after regulating its JT-valve; therefore, typical PID control loop should result in some cryostat parameter oscillations. This paper presents a type of PID parameter self-optimal and Time-Delay control method used to reduce cryogenic system parameters oscillation.},
doi = {},
url = {https://www.osti.gov/biblio/1022777}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jun 01 00:00:00 EDT 2011},
month = {Wed Jun 01 00:00:00 EDT 2011}
}

Conference:
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