AC Loss Simulation in HTS Coil Windings Coupled With an Iron Core

AC loss generated in Superferric magnets composed of high temperature superconducting (HTS) coil windings and iron cores is one critical issues for rapid-cycling synchrotrons (RCSs) application. In this work, we carried out 3D FEM simulations HTS assemblies coupled with an core using the T-A homogenization method. The consist a stack double pancake coils (DPCs) wound 4 mm - wide Shanghai Superconductor wires average self-field current 192.6 A. numerical experimental results DPC (1 DPC) without were compared to validate Then, on different number DPCs with/without investigate influence loss. causes increase values assemblies. increases by factor five assembly that core. simulation result reveals strong perpendicular magnetic field penetration occurs even center explains substantial assembly.