Modeling, Simulation and Control of Large Scale Cryogenic Systems

Bradu, Benjamin; Gayet, Philippe; Niculescu, Silviu‐Iulian

doi:10.3182/20080706-5-kr-1001.02247

Cited by 13 publications

(7 citation statements)

References 6 publications

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“…The corresponding model makes use of the library for cryogenic equipments that has been previously developed at CERN in the framework of CERN cryogenic system simulations [1][2]. Each refrigerator is composed of a warm compression station and an 18 kW @ 4.5 K cold-box.…”

Section: Modeling Of a 45 K Refrigerator For The Lhcmentioning

confidence: 99%

“…During the last years, a PROcess and COntrol Simulator (PROCOS) has been developed at the European Organization for Nuclear Research (CERN) to perform dynamic simulations of large-scale cryogenic systems [1][2]. This simulator can be used for various tasks as, for example, operator training, virtual commissioning of control programs or optimization.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Control Optimization of a LHC 18 Kw Cryoplant Warm Compression Station Using Dynamic Simulations

Bradu

Gayet

Niculescu

et al. 2010

AIP Conference Proceedings

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This paper addresses the control optimization of a 4.5 K refrigerator used in the cryogenic system of the Large Hadron Collider (LHC) at CERN. First, the compressor station with the cold-box have been modeled and simulated under PROCOS (Process and Control Simulator), a simulation environment developed at CERN. Next, an appropriate parameter identification has been performed on the simulator to obtain a simplified model of the system in order to design an Internal Model Control (IMC) enhancing the regulation of the high pressure. Finally, a floating high pressure control is proposed using a cascade control to reduce operational costs.

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Section: Modeling Of a 45 K Refrigerator For The Lhcmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Control Optimization of a LHC 18 Kw Cryoplant Warm Compression Station Using Dynamic Simulations

Bradu

Gayet

Niculescu

et al. 2010

AIP Conference Proceedings

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show abstract

“…In particular, several dynamic simulators have been proposed by [2,3,4,5,6] for operator training, dimensioning and/or control design. Based on a better dynamic modeling of the underlying process, advanced control schemes have been proposed which were often dedicated to a particular key variable.…”

Section: Introductionmentioning

confidence: 99%

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

Bonne¹,

Alamir²,

Bonnay³

2014

AIP Conference Proceedings

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“…A new dynamic simulator, PROCOS (PROcess and COntrol Simulator), has been developed to improve knowledge on complex cryogenic systems (Bradu, Niculescu, and Gayet, 2008b). The main objectives of the proposed simulator can be summarized as follows: the operator training, the test of control programs on "virtual" plants before their implementation (virtual commissioning) and the test of new control strategies to optimize the overall behavior of complex systems.…”

Section: Introductionmentioning

confidence: 99%

A process and control simulator for large scale cryogenic plants

Bradu

Gayet

Niculescu

2009

Control Engineering Practice

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This paper presents a process and control simulator for industrial helium cryogenic plants controlled by Programmable Logic Controllers (PLC). This simulator can be used for different purposes such as operator training, test of the PLC programs or the optimization of the plant. The different component models used in the simulator are detailed and explained. Various large scale cryogenic plants used for the particle accelerator LHC (Large Hadron Collider) at CERN have been modeled and simulated. The good agreement between the simulation results and the dynamic behaviour of real plants is demonstrated with experimental results. Various discussions complete the presentation.

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Modeling, Simulation and Control of Large Scale Cryogenic Systems

Cited by 13 publications

References 6 publications

Control Optimization of a LHC 18 Kw Cryoplant Warm Compression Station Using Dynamic Simulations

Control Optimization of a LHC 18 Kw Cryoplant Warm Compression Station Using Dynamic Simulations

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

A process and control simulator for large scale cryogenic plants

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