Title :
Electromagnetic Field Analyses of REBCO Roebel Cables Wound Into Coil Configurations
Author :
Sogabe, Yusuke ; Nii, Manabu ; Tsukamoto, Tadaaki ; Nakamura, T. ; Amemiya, N.
Author_Institution :
Kyoto Univ., Kyoto, Japan
Abstract :
We have been developing a model for numerical electromagnetic field analyses of REBCO Roebel cables wound into coil configurations, considering their three-dimensional structure. Electromagnetic field analyses were carried out for one-turn circular closed loop of a Roebel cable, one turn circular closed loop of a Roebel cable at the end of a stack of Roebel-cable loops which simulated a solenoid coil of a finite length, and an infinite solenoid coil wound with a Roebel cable. From the temporal evolution of the current distribution in the Roebel cables, ac losses were calculated. We studied the ac loss characteristics of Roebel cables in different locations in coils. The influence of the gap between turns on ac losses was discussed.
Keywords :
current distribution; electromagnetic fields; numerical analysis; superconducting cables; superconducting coils; REBCO Roebel cable loop; ac loss characteristics; coil configurations; current distribution; finite length; infinite solenoid coil; numerical electromagnetic field analysis; one-turn circular closed loop; three-dimensional structure; Coils; Integrated circuit modeling; Magnetic fields; Power cables; Superconducting cables; Wounds; AC loss; coated conductor; coil; electromagnetic field analyses; roebel cable;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2013.2292923
