FEM Analysis of Effect of Magnetism of Substrate on AC Transport Current Loss of HTS Conductor With Ferromagnetic Substrate
- 23 July 2007
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Applied Superconductivity
- Vol. 17 (2), 3167-3170
- https://doi.org/10.1109/tasc.2007.899088
Abstract
It is reported that the AC transport current loss of coated conductors with ferromagnetic Ni-alloy substrates is larger than the loss calculated by the Norris equation. This means the significant influence of the ferromagnetism of the substrate on AC transport current loss. In this paper, the current distribution and AC loss of HTS coated conductor with ferromagnetic substrate are analysed using the finite element method taking account of the nonlinear E-J characteristics. Calculated results show that the AC transport current loss is increased because the current distribution changes in the superconducting layer due to the concentration of magnetic flux in the substrate. The effect of magnetism of substrate on the current distribution of superconducting layer is illustrated and the AC transport current loss characteristics of the HTS coated conductor with ferromagnetic substrate are examined.Keywords
This publication has 8 references indexed in Scilit:
- Self-Field Loss in AC Transport Current of$rm Ni$-Sheathed$rm MgB_2$Superconducting TapesIEEE Transactions on Applied Superconductivity, 2006
- Transport AC Losses in YBCO Coated ConductorsIEEE Transactions on Applied Superconductivity, 2006
- Transport current losses in HoBaCuO-123 coated conductors with a Ni-alloy substratePhysica C: Superconductivity and its Applications, 2005
- Substrate and Stabilization Effects on the Transport AC Losses in YBCO Coated ConductorsIEEE Transactions on Applied Superconductivity, 2005
- Study on dependence of AC transport current losses in YBCO-coated conductors on distribution of critical current density andn valueElectrical Engineering in Japan, 2005
- Magnetism and ferromagnetic loss in Ni–W textured substrates for coated conductorsPhysica C: Superconductivity and its Applications, 2004
- Transport ac loss studies of YBCO coated conductors with nickel alloy substratesSuperconductor Science and Technology, 2003
- Calculation of hysteresis losses in hard superconductors carrying ac: isolated conductors and edges of thin sheetsJournal of Physics D: Applied Physics, 1970