Speaker
Description
High-temperature superconducting (HTS) magnets are increasingly considered for compact, high-field accelerator applications due to their large current capacity, thermal stability, and reduced cryogenic requirements. No-insulation (NI) HTS coils further provide compact winding and intrinsic self-protection, but their transient current redistribution during ramping or local quench can introduce dynamic electromagnetic behavior that must be accurately captured for reliable magnet operation.
This work presents a modeling framework to predict the transient electromagnetic behavior of NI coils for HTS accelerator and magnet applications. The method combines a lumped circuit model with a Minimum Electromagnetic Entropy Production (MEMEP) formulation to obtain physically consistent current evolution constrained by coil topology. The approach captures resistive current sharing and inductive dynamics without requiring full 3D finite element modeling (FEM) at each step. Benchmarking against FEM simulations confirms its ability to reproduce NI transient electromagnetic behavior. This work provides a practical tool to integrate NI coil physics into superconducting magnet design and analysis.
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