Modeling Eddy Current Losses in HTS Tapes Using Multiharmonic Method
IEEE Transactions on Applied Superconductivity(2023)
摘要
to the highly nonlinear electrical resistivity of high temperature superconducting (HTS) materials, computing the steady-state eddy current losses in HTS tapes, under time-periodic alternating current excitation, can be time consuming when using a time-transient method (TTM). The computation can require several periods to be solved with a small time-step. One alternative to the TTM is the multiharmonic method (MHM) where the Fourier basis is used to approximate the Maxwell fields in time. The method allows obtaining the steady-state solution to the problem with one resolution of the nonlinear problem. In this work, using the finite element method with the H - phi formulation, the capabilities of the MHM in the computational eddy current loss modeling of HTS tapes are scrutinized and compared against the TTM.
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关键词
High-temperature superconductors,Computational modeling,Finite element analysis,Steady-state,Bean model,Superconducting magnets,Superconducting films,AC losses,finite element methods,super-conducting tapes
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