CONTROL OPTIMIZATION OF A LHC 18 KW CRYOPLANT WARM COMPRESSION STATION USING DYNAMIC SIMULATIONS
AIP conference proceedings(2010)
摘要
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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关键词
dynamic simulation,helium refrigerator,IMC,floating pressure control
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