Current-carrying capacity of HTS DC cables with the reduced Lorentz force

11th European Conference on Applied Superconductivity

Vyatkin, V.S.^1 ; Tanabe, K.^1 ; Otabe, E.S.^1 ; Kiuchi, M.^1 ; Matsushita, T.^1

Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka, Fukuoka

820-8502, Japan^1

关键词: Axial magnetic field;    DC cables;    Flux lines;    High temperature superconducting tape;    Optimum structures;    Parallel magnetic field;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/507/2/022045/pdf
DOI  :  10.1088/1742-6596/507/2/022045

来源: IOP

【 摘 要 】

The structure of superconducting DC cable made with high temperature superconducting tapes is designed to improve the current-carrying capacity by reducing the Lorentz force acting on flux lines. For this purpose an axial magnetic field is produced by the outer shield conductor. The analysis was performed for the optimum structure for various superconducting tapes with different Jc(B,θ) characteristics. It is found that the current-carrying capacity increases appreciably when the difference in the critical current density of the tape is large enough between normal and parallel magnetic fields.