Speaker
Description
When coated conductors are assembled into a large-current cable such as Roebel cable or CORC cable, their electromagnetic behaviors are much more complicated than a single coated conductor: imbalance of strand-inductances might cause a non-uniform current distribution among coated conductors; the electomagnetic behavior of each coated conductor should be influenced by others. In this presentation, we focus on the electomagnetic behavior of each coated conductor in large-current cables. Current distributions in coated conductors are far from uniform. The non-uniform current distributions affect the field qualities of magnets. The temporally-changing current distributions cause ac losses. Electromagnetic field analyses are carried out for coated conductors assmebled into a large-current cable such as CORC cable and Roebel cable in order to clarify the influences of the cable geometries on the electromagnetic behaviors of coated conductors. The effect of striation is studied for large-current cables as well as simple models of stacked striated coated conductors.
This work was supported by Japan Science and Technology Agency under Strategic Promotion of Innovative Research and Development Program (S-Innovation Program).