CONTROL OPTIMIZATION OF A LHC 18 KW CRYOPLANT WARM COMPRESSION STATION USING DYNAMIC SIMULATIONS | Zendy

Benjamin Bradu | Zendy; Ph. Gayet | Zendy; SilviuIulian Niculescu | Zendy; J. G. Weisend | Zendy

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CONTROL OPTIMIZATION OF A LHC 18 KW CRYOPLANT WARM COMPRESSION STATION USING DYNAMIC SIMULATIONS

Author(s) -

Benjamin Bradu,

Ph. Gayet,

SilviuIulian Niculescu,

J. G. Weisend

Publication year - 2010

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.3422344

Subject(s) - large hadron collider , cascade , gas compressor , control system , process (computing) , automotive engineering , computer science , simulation , engineering , physics , mechanical engineering , electrical engineering , nuclear physics , operating system , chemical engineering

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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