2-D homogeneous model to estimate AC losses in coated conductor stacks and coils

This model was shared by V. Zermeno, Karlsruhe Institute of Technology.

The model uses a homogenization technique to calculate the current distribution inside the superconducting layers of a HTS stack where each tape carries the same net current as it would be the case in a coil. The model estimates the AC losses of the stack. The homogenized model runs significantly faster than a reference model including the geometry of all the tapes in the stack.

Exemplary result of the magnetic field and the normalized current density J/J_c(B) for a stack at different phase values.

Downloads

All model files for Comsol Multiphysics, version 4.3a

References

1. Reference model : Rodriguez-Zermeno et al. 2011 IEEE Trans. Appl. Supercond. 21 (3) 3273-3276
2. Homogenized model: Zermeno et al. 2013 J. Appl. Phys. 114 173901