TY - JOUR
T1 - Computation of losses in HTS under the action of varying magnetic fields and currents
AU - Grilli, Francesco
AU - Pardo, Enric
AU - Stenvall, Antti
AU - Nguyen, Doan N.
AU - Yuan, Weijia
AU - Gomory, Fedor
PY - 2014
Y1 - 2014
N2 - Numerical modeling of superconductors is widely recognized as a powerful tool for interpreting experimental results, understanding physical mechanisms, and predicting the performance of higherature-superconductor (HTS) tapes, wires, and devices. This is particularly true for ac loss calculation since a sufficiently low ac loss value is imperative to make these materials attractive for commercialization. In recent years, a large variety of numerical models, which are based on different techniques and implementations, has been proposed by researchers around the world, with the purpose of being able to estimate ac losses in HTSs quickly and accurately. This paper presents a literature review of the methods for computing ac losses in HTS tapes, wires, and devices. Technical superconductors have a relatively complex geometry (filaments, which might be twisted or transposed, or layers) and consist of different materials. As a result, different loss contributions exist. In this paper, we describe the ways of computing such loss contributions, which include hysteresis losses, eddy-current losses, coupling losses, and losses in ferromagnetic materials. We also provide an estimation of the losses occurring in a variety of power applications.
AB - Numerical modeling of superconductors is widely recognized as a powerful tool for interpreting experimental results, understanding physical mechanisms, and predicting the performance of higherature-superconductor (HTS) tapes, wires, and devices. This is particularly true for ac loss calculation since a sufficiently low ac loss value is imperative to make these materials attractive for commercialization. In recent years, a large variety of numerical models, which are based on different techniques and implementations, has been proposed by researchers around the world, with the purpose of being able to estimate ac losses in HTSs quickly and accurately. This paper presents a literature review of the methods for computing ac losses in HTS tapes, wires, and devices. Technical superconductors have a relatively complex geometry (filaments, which might be twisted or transposed, or layers) and consist of different materials. As a result, different loss contributions exist. In this paper, we describe the ways of computing such loss contributions, which include hysteresis losses, eddy-current losses, coupling losses, and losses in ferromagnetic materials. We also provide an estimation of the losses occurring in a variety of power applications.
KW - Alternate current (ac) losses
KW - coupling losses
KW - eddy-current losses
KW - hysteresis losses
KW - magnetic materials
KW - numerical modeling
UR - http://www.scopus.com/inward/record.url?scp=84887846836&partnerID=8YFLogxK
UR - http://dx.doi.org/10.1109/TASC.2013.2259827
UR - http://dx.doi.org/10.1109/TASC.2013.2259827
U2 - 10.1109/TASC.2013.2259827
DO - 10.1109/TASC.2013.2259827
M3 - Article
AN - SCOPUS:84887846836
SN - 1051-8223
VL - 24
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 1
M1 - 6648727
ER -