Thermal and Electrical Analysis of No-insulation Magnet during Transient Process Based on 2D Finite Element Method.

Compared with insulated superconducting magnet, no-insulation magnet can obtain higher magnetic field with smaller volume, but the existence of radial current complicates the transient analysis of NI magnet. In this paper, a 2-dimensional (2D) method was introduced into the thermal-electrical analysis of NI magnet, we discussed the current distribution and power generation during charging process at different working status. The result confirmed 2D method could greatly simplify the modeling process and reduce the number of meshes, which can enhance the convergence of calculation process, and speed up the analysis process.