Analysis of AC Transport Loss in Conductor on Round Core Cables

Abstract The conductor on round core (CORC) cable wound with second-generation high-temperature superconducting (HTS) tapes is a promising candidate superiority in current capacity and mechanical strength. composing superconductors the former are tightly assembled, resulting strong electro-magnetic interaction between them. Correspondingly, AC loss influenced by structure. In this paper, 3D finite-element model of CORC first built, it includes complex geometry, angular dependence critical periodic settings. modelling verified measurements conducted for transport two-layer cable. Subsequently, simulated results show that primary shifts from to as increases. Meanwhile, exhibited outer layer larger than inner layer, which caused shielding effect among layers former. This also leads inhomogeneity cables. contrast case, single-layer structure indicates stronger frequency because eddy copper always dominant without cancellation opposite-wound layers. single denser surface. Finally, losses straight HTS tape, compared. confirmed minimise loss, meaning an even-numbered arrangement makes better use space materials. Having illustrated behaviour inside cable, work essential reference design