Studies on factors affecting AC loss of iron-based Ba122 superconducting tape
In this paper,Ba122 iron-based superconducting tape produced by Institute of Electrician,China Academy of Sciences was taken as the research object,H equation based on magnetic field was combined with E-J relation of superconduc-tor,and a two-dimensional axisymmetric model of Ba1 22 iron-based superconducting tape was established by COMSOLMul-tiphysics finite element simulation software.The influences of different core wires,different magnetic field amplitudes,different magnetic field frequencies and core wire spacing on iron-based superconducting tape were simulated and analyzed.The results show that the reasonable number of core wires can minimize the total AC loss of iron-based superconducting tape.The effect of multi-core on reducing AC loss is more obvious when the amplitude of magnetic field intensity is higher or the frequency is low-er.In addition,the thickness of the inner jacket must be optimized when the pipe is threaded at one time.
Iron-based superconductorAC lossH equationFinite element simulation
NETL
NSTL
万方数据
