Influence of Parameters on the Simulation of HTS Bulks Magnetized by Pulsed Field Magnetization

High-temperature superconducting (HTS) bulks can be magnetized to become powerful trapped field magnets (TFMs), which are promising for high-performance electrical applications. To magnetize such TFMs, pulsed field magnetization (PFM) is supposed to substitute field cooling (FC) to provide in situ m...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2016-06, Vol.26 (4), p.1-5
Main Authors: Shengnan Zou, Zermeno, Victor M. R., Grilli, Francesco
Format: Article
Language:English
Subjects:
bulk
Critical current density (superconductivity)
electromagnetic thermal coupled model
H-formulation
Heating
High temperature superconductor (HTS)
High-temperature superconductors
Magnetic flux
Magnetism
Magnetization
Mathematical model
pulsed field magnetization
Superconducting magnets
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Summary:High-temperature superconducting (HTS) bulks can be magnetized to become powerful trapped field magnets (TFMs), which are promising for high-performance electrical applications. To magnetize such TFMs, pulsed field magnetization (PFM) is supposed to substitute field cooling (FC) to provide in situ magnetization. However, the heat generation during PFM, which reduces the trapped field, has always been an issue; thus, numerical simulation of the process is important to provide optimal magnetization strategies. In this paper, HTS bulks magnetized by PFM are simulated with an axisymmetric electromagnetic-thermal coupled model based on the H-formulation. Influences of important yet difficult-to-characterize parameters of HTS bulks, including n values in the E-J power law and B 0 in the Kim model, are investigated to show the influences of parameters on the modeling of HTS by PFM.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2016.2535379