Speaker
Description
A 5 T high-temperature superconducting (HTS) magnet utilizing conduction cooling with REBCO tape has been designed and constructed at the Wuhan National High Magnetic Field Center (WHMFC). The magnet comprises three double pancake (DP) coils, employing a no-insulation (NI) winding technique，and is designed to operate at a current of 260 A at 4 K. During magnet operation, the turn-to-turn contact resistance and screening current effects in the NI magnets introduce additional thermal loads, overstresses, and magnetic field distortions, all of which can negatively impact the magnet's performance. To gain a deeper understanding of these phenomena, a set of multi-physics simulation models has been developed to comprehensively analyze the magnet’s behavior under various physical conditions, including the cooling and charging processes. These models integrate electromagnetic, thermal, and structural simulations to capture the full-cycle operational dynamics. The accuracy and reliability of these models are validated by comparing the simulation results with experimental data.
