Abstract
To enhance the critical current of superconducting coil, the magnetic field experienced by superconductor strand (tape) in a coil should be minimized. This is true for both low T c and high T c superconductors, and the difference between the two lies in their isotropic/anisotropic characteristics. In this paper, we propose a shape optimization algorithm to reduce radial magnetic field components in HTS solenoid to enhance critical current of a solenoid. In the algorithm, the finite element method and the continuum shape design sensitivity formula were employed. The objective function is to minimize the maximum radial magnetic fields in a solenoid with a constraint of constant solenoid volume condition. In this paper, the details on algorithm are introduced and the calculated optimized shapes are presented.
Published Version
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