Cryogenic Plant Control System Architecture D HENRY PSEPEDCES

Cryogenic Plant Control System Architecture D. HENRY PSE/PED/CES ITER/CERN HMI Meeting – 10 th-11 th of February 2014 D. HENRY Page 1

Outline • • • General PFD of the ITER Cryogenic System Process function identification Cryogenic system operation states Instrumentation requirement overview I/O inventory ITER Codac Interlock and Safety conceptual architecture • Functional architecture of the Cryogenic I&C PS ITER/CERN HMI Meeting – 10 th-11 th of February 2014 D. HENRY Page 2

General PFD of the ITER Cryogenic System EU IO IN CN I&C package is included within each PA ITER/CERN HMI Meeting – 10 th-11 th of February 2014 D. HENRY Page 3

Process functions Identification LHe Plant x 3 80 K Loops x 2 HP Compressing LP Compressing He Drying GHe pre-cooling 80 K purifying 50 K production (Mag) Turbines controlling He Phase Separating Hx Bypassing HP Compressing LP Compressing He Drying Turbines controlling N 2 Phase Separating Hx Bypassing He Compressing He Drying GHe pre-cooling Hx Bypassing LN 2 Plant x 2 LN 2 Storage He Purifying GHe Storage 80 K Storage LHe Storage Cryoplant Cryogenic System Coordination Control CTCB Cryodistribution Thermal Shield cooling Cold He Compressing He Phase Separating Cold He Circulating He heating Primary Loop controlling Cold He Compressing Thermal Shield cooling He Phase Separating Cold He Circulating He heating Primary Loop controlling Structures/TF/CS Cryopumps Thermal Shield cooling Cold He Compressing He Phase Separating Cold He Circulating He heating Primary Loop controlling PF&CC Interface Cryostat / Torus / NB Cryopannels cooling 80 K TS&Baffles cooling Cps Regenerating Thermal Shields GHe channeling Structures TF case cooling CS support cooling 80 k TS cooling TF / CS S/c coils cooling Joints/Busbars cooling 50 K HTS_CL cooling 80 K TS cooling ITER/CERN HMI Meeting – 10 th-11 th of February 2014 PF&CC S/c coils cooling Joints/Busbars cooling 50 K HTS_CL cooling 80 K TS cooling D. HENRY Page 4

ITER Cryogenic System Operation States ITER/CERN HMI Meeting – 10 th-11 th of February 2014 D. HENRY Page 5

Instrumentation Requirement Overview Service Area Environmental Requirement Storage area (#53) Atmospheric: -10 o. C to +50 o. C Compressor buildings (#51) Ambient: 15 o. C to 45 o. C, vibration frequency: up to 1000 Hz (#52) Ambient: 5 o. C to 40 o. C (#11) Ambient: 20 o. C to 45 o. C, Magnetic field <0. 033 T, Radiation hardness < 100 Gy (4700 hours) Tokamak building Measurement loops Temperature Absolute pressure #53 #51 #52 #11 4. 5 K to 330 K 250 K to 500 K 4. 5 K to 300 K 3. 5 K to 300 K 0 to 60 bar 0 to 25 bar 0 to 3 bar 0 to 1. 5 bar 0 to 2 bar 10 -5 Pa to 105 Pa 0 to 4 kg/s 0 to 2 kg/s 0 to 3 kg/s 0– 100% (Oil) 0– 100% (LN 2, LHe) 0– 100% (LHe) Differential pressure Vacuum pressure Flow rate Level 0– 100% (LN 2, LHe) Vibration speed Up to 30 mm/s Rotating speed Up to 60 Hz Up to 4000 Hz Up to 1000 Hz Position 0– 100% Electrical power 0– 100% Instrumentation requirements shall be focused on reliable, industrially proven components ITER/CERN HMI Meeting – 10 th-11 th of February 2014 D. HENRY Page 6

I/O Inventory SYSTEMS DI DO AI AO LN 2 Plant 480 110 190 40 80 K Loops 200 44 88 34 Magnet LHe Plant 1360 320 680 150 Cryopumps LHe Plant 680 160 340 75 CTCB 224 30 150 105 Cps ACB 30 18 132 42 Mag ACB 26 64 401 133 TCVB 12 6 98 26 Magnet PBS 11 1085 103 2442 366 Total 4951 1497 3996 Total inventory for Cryoplant and Cryodistribution: ~10, 500 I/O Without taking into account I/O from cryogenic Cryopumps CVB ITER/CERN HMI Meeting – 10 th-11 th of February 2014 D. HENRY Page 7

ITER CODAC, Interlocks and Safety conceptual architecture Supervision & Services Data Servers EPICS Plant System I&C (PA in kind) Conventional control ITER/CERN HMI Meeting – 10 th-11 th of February 2014 Interlocks Safety D. HENRY Page 8

FUNCTIONAL Architecture of the Cryoplant I&C PS ITER/CERN HMI Meeting – 10 th-11 th of February 2014 D. HENRY Page 9

FUNCTIONAL Architecture of Cryodistribution I&C PS ITER/CERN HMI Meeting – 10 th-11 th of February 2014 D. HENRY Page 10

ITER/CERN HMI Meeting – 10 th-11 th of February 2014 D. HENRY Page 11