LAUSR

Abstract AC losses occur when high temperature superconducting (HTS) cables are connected by alternating current placed in alternating background magnetic field. The generation of AC loss will increase the load of cooling system, and deteriorate the overall performance of cables. Therefore, AC loss of high temperature superconducting cable is an important design parameter of large-scale power application. Up to now, AC loss characteristics of various HTS cables such as conductor on round core (CORC) cable, twisted stacked tape cable (TSTC), Roebel cable, quasi-isotropic strand and soldered-stacked-square-twisted (3S-T) wire have been extensively studied. AC loss characteristics of twisted-stack slotted-core cable, however, have not been studied. In this work, the self-field and in-field AC losses and critical currents of different structured stack slotted-core cables are studied numerically in two-dimensional. The critical current calculation using self-consistent model was based on the A-formulation and the H-formulations to assessment the AC losses. The numerical results are useful for the application of HTS cables.