Semi-empirical model of the losses in HTS tapes carrying AC currents in AC magnetic fields applied parallel to the tape face

摘要: Abstract The AC losses are an important parameter of high-temperature superconductors (HTSs) to be used in electric power applications. To obtain optimised design such applications, models the needed. This article describes a semi-empirical model HTS tapes as function temperature, magnetic field, transport current and frequency. field (applied parallel tape face) phase with each other. considers flux-flow (based on law dependence) hysteresis critical state model). Results obtained by compared experimental data calorimetrically BSCCO/Ag temperature interval 41–94 K. Using model, minima per unit carried length determined field. currents at which these occur represent optimal operating conductor respect losses. can determine inner part winding e.g. transformer coil. In outer winding, large due component perpendicular face.