Abstract
It is highly beneficial to reduce AC losses in multi-layer superconducting power cables. For this purpose, each superconducting layer is wound with a different twist pitch on a former so as to balance current distribution among layers. Finite element analysis makes it possible to show electromagnetic properties in superconducting layers visually, which is useful for discussing methods to enable further loss reduction. However, making a numerical analysis model of a multi-layer cable which is faithful to its geometry is highly complicated and troublesome as the model requires a correction each time the set of twist pitches needs to be changed. The authors have developed a new method to analyze such a cable by introducing anisotropy on the conductivity. In this paper, the method and the effects are discussed and compared with experimental results.
| Original language | English |
|---|---|
| Pages (from-to) | 1894-1897 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 13 |
| Issue number | 2 II |
| DOIs | |
| Publication status | Published - 2003 Jun |
| Externally published | Yes |
| Event | 2002 Applied Superconductivity Conference - Houston, TX, United States Duration: 2002 Aug 4 → 2002 Aug 9 |
Keywords
- Current distribution
- Numerical analysis
- Power transmission cables
- Superconducting cables
- Superconductors (high-temperature)
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering