Stability of HTS current leads considering unstable equilibrium temperature profile

Author

Machata, K. ; Mizokami, Y. ; Ishihashi, K. ; Takeo, M. ; Mito, T. ; Yamamoto, J.

Author_Institution

Fac. of Eng., Kyushu Univ., Fukuoka, Japan

Volume

7

Issue

2

fYear

1997

fDate

6/1/1997 12:00:00 AM

Firstpage

680

Lastpage

683

Abstract

One of the equilibrium temperature profiles along the conductor is found to be the unstable solution between well-known upper and lower solutions of the energy balance equation of high temperature superconducting (HTS) current leads. The transient behavior of the temperature profile of the HTS leads is analyzed by perturbing the unstable equilibrium temperature profile. The stability of the leads against thermal disturbances is explained by the use of results of the transient analysis. The stability of ideal gas cooled leads is compared with that of the conduction cooled leads.

Keywords

cooling; high-temperature superconductors; stability; superconducting cables; thermal analysis; transient analysis; HTS current leads stability; conduction cooled leads; energy balance equation; equilibrium temperature profiles; gas cooled leads; high temperature superconducting current leads; thermal disturbances; transient behavior; Conductors; Cooling; Equations; High temperature superconductors; Resistance heating; Stability analysis; Steady-state; Thermal conductivity; Thermal stability; Transient analysis;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.614595

Filename

614595