Simcryogenics: a library to simulate and optimize cryoplant and cryodistribution dynamics

F Bonne, S Varin, A Vassal, P Bonnay… - IOP Conference …, 2020 - iopscience.iop.org
In many fields of engineering, conception and operation teams need to perform simulations
in order to design systems fulfilling the user requirements and to operate the systems …

Fixed-point based hierarchical MPC control design for a cryogenic refrigerator

M Alamir, P Bonnay, F Bonne, VV Trinh - Journal of Process Control, 2017 - Elsevier
In this paper, a simple, general and scalable hierarchical control framework is proposed and
validated through the interconnection of the Joule–Thomson and the Brayton cycle stages of …

A simulink library of cryogenic components to automatically generate control schemes for large cryorefrigerators

F Bonne, M Alamir, C Hoa, P Bonnay… - IOP conference …, 2015 - iopscience.iop.org
In this article, we present a new Simulink library of cryogenics components (such as valve,
phase separator, mixer, heat exchanger...) to assemble to generate model-based control …

Experimental investigation of control updating period monitoring in industrial PLC-based fast MPC: Application to the constrained control of a cryogenic refrigerator

F Bonne, M Alamir, P Bonnay - Control Theory and Technology, 2017 - Springer
In this paper, a complete industrial validation of a recently published scheme for on-line
adaptation of the control updating period in model predictive control is proposed. The …

Development of a Measurement and Control System for a 40l/h Helium Liquefier based on Siemens PLC S7-300

J Li, LQ Liu, XD Xu, T Liu, Q Li, ZJ Hu, BM Wang… - Physics Procedia, 2015 - Elsevier
A 40l/h Helium Liquefier has been commissioned by the Technical Institute of Physics and
Chemistry, Chinese Academy of Sciences. A measurement and control system based on …

Dynamic simulation of warm compressor station for SHINE test facility cryoplant

S Chen, S Zhang, D Wang, P Zhang, J Sun, Z Ouyang… - Cryogenics, 2024 - Elsevier
To fulfill the cooling capacity needs of cryomodule test facility for the Shanghai high
repetition rate x-ray free electron laser (XFEL) and extreme light facility (SHINE), a 1 kW@ 2 …

Nonlinear observer of the thermal loads applied to the helium bath of a cryogenic Joule–Thompson cycle

F Bonne, M Alamir, P Bonnay - Journal of Process Control, 2014 - Elsevier
In this paper, a nonlinear observer of the thermal loads applied to the helium bath of a
cryogenic refrigerator is proposed. The thermal loads represent a time-varying thermal …

Control of warm compression stations using model predictive control: Simulation and experimental results

F Bonne, M Alamir, P Bonnay - IOP Conference Series: Materials …, 2017 - iopscience.iop.org
This paper deals with multivariable constrained model predictive control for Warm
Compression Stations (WCS). WCSs are subject to numerous constraints (limits on …

Physical control oriented model of large scale refrigerators to synthesize advanced control schemes. design, validation, and first control results

F Bonne, M Alamir, P Bonnay - AIP Conference Proceedings, 2014 - pubs.aip.org
In this paper, a physical method to obtain control-oriented dynamical models of large scale
cryogenic refrigerators is proposed, in order to synthesize model-based advanced control …

Modélisation et contrôle des grands réfrigérateurs cryogéniques

F Bonne - 2014 - theses.hal.science
Ce manuscrit de thèse s' intéresse à la modélisation et au contrôle des réfrigérateurs
cryogéniques. Le cas particulier des réfrigérateurs soumis à de fortes variations de charges …