TY - JOUR
T1 - An optimal control approach for an overall cryogenic plant under pulsed heat loads
AU - Palaćin, Luis Gómez
AU - Bradu, Benjamin
AU - Viñuela, Enrique Blanco
AU - Maekawa, Ryuji
AU - Chalifour, Michel
N1 - Publisher Copyright:
© 2015 The Authors.
PY - 2015
Y1 - 2015
N2 - This work deals with the optimal management of a cryogenic plant composed by parallel refrigeration plants, which provide supercritical helium to pulsed heat loads. First, a data reconciliation approach is proposed to estimate precisely the refrigerator variables necessary to deduce the efficiency of each refrigerator. Second, taking into account these efficiencies, an optimal operation of the system is proposed and studied. Finally, while minimizing the power consumption of the refrigerators, the control system maintains stable operation of the cryoplant under pulsed heat loads. The management of the refrigerators is carried out by an upper control layer, which balances the relative production of cooling power in each refrigerator. In addition, this upper control layer deals with the mitigation of malfunctions and faults in the system. The proposed approach has been validated using a dynamic model of the cryoplant developed with EcosimPro software, based on first principles (mass and energy balances) and thermo-hydraulic equations.
AB - This work deals with the optimal management of a cryogenic plant composed by parallel refrigeration plants, which provide supercritical helium to pulsed heat loads. First, a data reconciliation approach is proposed to estimate precisely the refrigerator variables necessary to deduce the efficiency of each refrigerator. Second, taking into account these efficiencies, an optimal operation of the system is proposed and studied. Finally, while minimizing the power consumption of the refrigerators, the control system maintains stable operation of the cryoplant under pulsed heat loads. The management of the refrigerators is carried out by an upper control layer, which balances the relative production of cooling power in each refrigerator. In addition, this upper control layer deals with the mitigation of malfunctions and faults in the system. The proposed approach has been validated using a dynamic model of the cryoplant developed with EcosimPro software, based on first principles (mass and energy balances) and thermo-hydraulic equations.
KW - Cryogenics
KW - Fusion
KW - Modeling
KW - Optimal Control
KW - Simulation
UR - http://www.scopus.com/inward/record.url?scp=84948417448&partnerID=8YFLogxK
U2 - 10.1016/j.phpro.2015.06.177
DO - 10.1016/j.phpro.2015.06.177
M3 - Conference article
AN - SCOPUS:84948417448
SN - 1875-3884
VL - 67
SP - 1141
EP - 1146
JO - Physics Procedia
JF - Physics Procedia
T2 - 25th International Cryogenic Engineering Conference and International Cryogenic Materials Conference, ICEC/ICMC 2014
Y2 - 7 July 2014 through 11 July 2014
ER -