Title :
Simulation of Eddy-Current Losses in a Fast Ramped Superconductive Dipole Magnet
Author :
Koch, S. ; De Gersem, H. ; Fischer, E. ; Moritz, G. ; Weiland, T.
Author_Institution :
Darmstadt Univ. of Technol.
fDate :
6/1/2006 12:00:00 AM
Abstract :
The eddy-current losses in the yoke of a superconductive dipole magnet are simulated using a transient, magnetoquasistatic formulation discretized in 3D by the finite integration technique. The laminated yoke material is modeled by an anisotropic, nonlinear material characteristic. The system is linearized by the successive approximation technique with backtracking and solved by a curl-curl algebraic multigrid solver. The results show the complex interaction between ferromagnetic saturation and eddy currents
Keywords :
accelerator magnets; eddy current losses; ferromagnetic materials; ion accelerators; laminates; superconducting magnets; synchrotrons; anisotropic characteristics; curl-curl algebraic multigrid solver; eddy-current losses; fast ramped superconductive dipole magnet; ferromagnetic saturation; finite integration technique; homogenization; laminated yoke material; magnetoquasistatic formulation; nonlinear material characteristic; successive approximation technique; synchrotrons; Anisotropic magnetoresistance; Eddy currents; Magnetic anisotropy; Magnetic losses; Magnetic materials; Perpendicular magnetic anisotropy; Saturation magnetization; Superconducting magnets; Superconducting materials; Superconductivity; Ferromagnetic saturation; homogenization; laminated materials; superconductive magnets;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2006.870003
