An electromagnetic-thermal-mechanical coupling model of dry-wound HTS coil based on T-A formulation with Neumann boundary condition

The multi-physics coupling behaviours of HTS coils have now received much attention. In particular, the electromagnetic field, temperature field and mechanical deformation interact with each other during quench of high-field magnets. Accurate analysis of coupling behaviours becomes the key to designing magnets and quench protection. In this paper, a multi-physics coupling model is proposed based on T-A formulation with Neumann boundary conditions. It is convenient to analyse the effects of deformation and temperature on the electromagnetic field, as well as the redistribution of the current between the different layers during quench.