Magnetic Flux Penetration and Transport AC Loss in Superconductor Coated Conductor on Ferromagnetic Substrate

• Published in: IEEE transactions on applied superconductivity Vol. 19; no. 3; pp. 3102 - 3105
• Main Authors: Gomory, F., Pardo, E., Vojenciak, M., Souc, J.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.06.2009; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: AC loss; Applied sciences; COATINGS; Conductors; Conductors (devices); Critical current density; Electric connection. Cables. Wiring; ELECTRICAL CONDUCTORS; Electrical engineering. Electrical power engineering; Electromagnets; Electronics; Evolution; Exact sciences and technology; Ferromagnetism; FLUXES; High temperature superconductors; Magnetic fields; Magnetic flux; MAGNETIC PROPERTIES; Materials; MATHEMATICAL ANALYSIS; Mathematical models; Multifilamentary superconductors; PENETRATION; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Superconducting devices; Superconducting epitaxial layers; Superconducting filaments and wires; Superconducting films; superconducting tapes; SUPERCONDUCTIVITY; superconductor-ferromagnetic composite; SUPERCONDUCTORS; Transport; Various equipment and components; WIRE; Yttrium barium copper oxide; Critical current density; Magnetic flux; Ferromagnetic materials; high-temperature superconductors; Composite material; Coated material; Field distribution; Magnetic substrate; Superconducting tapes; Non linear properties; Current distribution; Ferromagnetism; superconductor-ferromagnetic composite; Electrical conductor; AC losses; High temperature superconductor; AC loss
• ISSN: 1051-8223; 1558-2515
• DOI: 10.1109/TASC.2009.2017925

A numerical investigation was carried out to assess the influence of ferromagnetic substrate on the transport losses in YBCO coated conductor. We used an improved version of the method that was proposed recently by A. Campbell to simulate the evolution of current and field distributions in wire from hard superconductor carrying ac. It was found that this technique is able to cope with field dependent critical current density in superconductor in the presence of ferromagnetic material with non-linear properties. Our results indicate that the magnetic substrate is a significant factor in the loss behavior.