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Hysteretic ac loss of superconducting strips simultaneously exposed to ac transport current and phase-different ac magnetic field.
- Source :
-
Applied Physics Letters . 1/8/2007, Vol. 90 Issue 2, p022506-N.PAG. 3p. 2 Graphs. - Publication Year :
- 2007
-
Abstract
- A simple analytical expression is presented for hysteretic ac loss Q of a superconducting strip simultaneously exposed to an ac transport current I0 cos ωt and a phase-different ac magnetic field H0 cos(ωt+θ0). On the basis of the critical state model, the authors calculate Q for small current amplitude I0≤Ic, for small magnetic field amplitude H0≤Ic/2πa, and for arbitrary phase difference θ0, where Ic is the critical current and 2a is the width of the strip. The resulting expression for Q=Q(I0,H0,θ0) is a simple biquadratic function of both I0 and H0, and Q becomes maximum (minimum) when θ0=0 or π (θ0=π/2) [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 90
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 23774032
- Full Text :
- https://doi.org/10.1063/1.2431013