Electromagnetic and Structural Analyses of the ITER Central Solenoid Feeder Structures
Authors: A.M. Zolfaghan and K. Freudenberg
Abstract:
In the current ITER design, the six central solenoid coils are fed
with electrical currents through three upper feeders and three
lower feeders. These feeders, that are mounted on the key blocks,
are required to withstand cooling and electromagnetic loads
through different ITER operation scenarios. The IxB interaction
of the currents and the magnetic field exerts loads on the
superconducting leads and busbars in the feeders. These loads
are transferred to the feeder structures through clamps that hold
the conductors along their paths.
The upper and lower ITER CS feeder structures including the
feeder boxes, bus bars, and coil leads for CS2U and CS2L coils
were analyzed using finite element techniques. The coupled
Electromagnetic-structural FEM analyses included the effect of
electromagnetic forces as well as liquid Helium cooling on the bus
bars and coil leads for two different ITER scenarios. The results
of these analyses and their implications for the design of feeders
are discussed in this paper.
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Submitted to: SOFE 2013 Proeedings (June 0213) 25th Symposium on Fusion Engineering, San Francisdco, CA (June 10-14, 2013)
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Download PPPL-4902 (pdf KB pp)
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