Dynamic PID loop control

Pei, L; Klebaner, A; Theilacker, J; Soyars, W; Martinez, A; Bossert, R; DeGraff, B; Darve, C

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DOE OSTI · 1022777

Dynamic PID loop control

Pei, L·Klebaner, A·Theilacker, J·Soyars, W·Martinez, A·Bossert, R·DeGraff, B·Darve, C

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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.

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43 PARTICLE ACCELERATORS Accelerators CAVITIES CONTROL SYSTEMS CRYOGENICS CRYOSTATS FERMILAB OSCILLATIONS REGULATIONS TIME DELAY

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BibTeX RIS

Pei, L, Klebaner, A, Theilacker, J, Soyars, W, Martinez, A, Bossert, R, DeGraff, B, Darve, C. 2011-06-01. Dynamic PID loop control. https://www.osti.gov/biblio/1022777

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