Degradation of critical current in an HTS coated conductor considering curvature of ellipse for rotating flux pump
| Autor: | Seunghak Han, Haeryong Jeon, Ji Hyung Kim, Ho Min Kim, Jeyull Lee, Tae Kuk Ko, Yong Soo Yoon, Chang Ju Hyeon |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Superconductivity Materials science General Physics and Astronomy Prolate spheroid Mechanics Ellipse Curvature 01 natural sciences Radius of curvature (optics) Conductor Condensed Matter::Superconductivity 0103 physical sciences General Materials Science Critical current 010306 general physics Synchronous motor |
| Zdroj: | Cryogenics. 89:141-146 |
| ISSN: | 0011-2275 |
| Popis: | A rotating HTS flux pump is used to study the charging characteristics of superconducting synchronous motor. In order to design the rotating flux pump, the elliptical winding is essential. Numerous studies have been conducted on the degradation of the critical current with respect to the bending condition of the second generation (2G) high-temperature superconducting (HTS) tape. These studies focused on the same radius of curvature depending on the bending position. Therefore, in this paper, the critical current in a HTS coated conductor (CC) considering the curvature of elliptical shape is measured with regard to nine mandrels. These are a tall prolate ellipsoid, oblate ellipsoid and semicircle. In the tall prolate ellipsoid, the degradation of the critical current was the least. The diameters of each shape are 20, 30 and 40 mm, respectively. Finally, the experimental observations have been compared with the theoretical predictions. |
| Databáze: | OpenAIRE |
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