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

TL;DR

This paper presents a multi-physics coupling model for dry-wound HTS coils that integrates electromagnetic, thermal, and mechanical behaviors using T-A formulation with Neumann boundary conditions, aiding in magnet design and quench protection.

Contribution

It introduces a novel coupling model based on T-A formulation with Neumann boundary conditions for analyzing HTS coil behaviors during quench.

Findings

Enables analysis of deformation and temperature effects on electromagnetic fields.

Facilitates understanding of current redistribution during quench.

Supports improved magnet design and quench protection strategies.

Abstract

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.