Modeling of Superconducting Conductor on Round Core (CORC) Cables: 2D and 3D

One of the High Temperature Superconducting (HTS) cables can be made by the Conductor on Round Core (CORC) structure, and it has been regarded as the reasonable option for many superconducting applications, e.g. power transmission cable and high field magnet. This article shows the simulation of superconducting CORC performed by the finite-element method (FEM) using H-formulation model, which was on the commercial platform of COMSOL. We used the 2-dimension (2D) and 3-dimension (3D) models for the superconducting CORC, and their outcomings were analyzed and compared. There were 2 design parameters in this study: (i) the gap angle, between each HTS tape, and (ii) the degree of twist: generally defined called pitch. The 2D CORC model's calculation speed was faster than 3D CORC model, but the 3D CORC model was able to simulate the loss in a realistic range.