Abstract
Most high-temperature superconducting (HTS) electric devices have been built by employing a superconducting composite cable. These HTS devices generally have large current-carrying capacities. Therefore, the electromagnetic characteristic of a composite superconducting cable with high current density becomes a key point for the application of these HTS devices. A helical superconducting cable and a Roebel cable consisted of YBCO-coated conductors with a critical current of 500 A @ 77 K in the self-field are both proposed in this paper. The helical superconducting cable that has two conductor layers and the structure parameters of the helical cable are given. The Roebel cable has four layers with a critical current of 500 A. Two 3-D models are built for a helical cable and a Roebel cable with variable geometries. Their magnetic flux distributions along the axis are presented based on the finite-element analysis method, and their electromagnetic characteristics are discussed as well. The analysis model can be further applied for the large-scale HTS electric device design with high current-carrying ability.
| Original language | English |
|---|---|
| Pages (from-to) | 1-4 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 26 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1 Oct 2016 |
Funding
This work was supported in part by the National Natural Science Foundation of China under Grant 51207146, by the Engineering and Physical Sciences Research Council under Grant EP/K01496X/1, by the Science and Technology Project of State Grid Corporation of China under Grant DG71-16-002, and by the Newton Research Collaboration Programme through the Royal Academy of Engineering under Grant UK/NRCP1415134.
Keywords
- 3-D FEM
- Helical cable
- magnetic flux distribution
- optimal design
- roebel cable