Analysis on critical current of HTS strand with geometrically symmetric configuration

Abstract

This paper presents calculation of critical current for a high temperature superconducting (HTS) strand which was stacked by the ReBCO coated conductors (ReBCO CCs). Based on the empirical properties of the single ReBCO CC, a several calculating methods of critical current were proposed according to the magnetic field distribution simulated by finite element method (FEM). It was illustrated that an empirical model was the most available for determining the critical current of the strand at 77 K.