Degradation of Critical Current in an HTS Tape with Combined Bending and Torsion Considering Curvature of Elliptical Shape

Seunghak Han; Jeyull Lee; Haeryong Jeon; Ji Hyung Kim; Chang Ju Hyeon; Ho Min Kim; Hyoungku Kang; Tae Kuk Ko; Yong Soo Yoon

doi:10.1109/TASC.2017.2782217

Degradation of Critical Current in an HTS Tape with Combined Bending and Torsion Considering Curvature of Elliptical Shape

Seunghak Han, Jeyull Lee, Haeryong Jeon, Ji Hyung Kim, Chang Ju Hyeon, Ho Min Kim, Hyoungku Kang, Tae Kuk Ko, Yong Soo Yoon

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Degradation of critical current (I_c) in a high-temperature superconducting (HTS) tape under bending conditions had been previously investigated. These investigations were focused on only either bending or torsion. A rotating flux pump is used to study the charging characteristics of an HTS synchronous motor. In order to design the rotating flux pump connected in series, the elliptical winding applied together with combined bending and torsion is essential. Therefore, in this paper, the critical current considering curvature of elliptical shape is measured with regard to nine kinds of mandrels. The shapes of the mandrels are a tall prolate ellipsoid, oblate ellipsoid, and semicircle. The diameters of each shape are 20, 30, and 40 mm, respectively. The experiments are mainly composed of three conditions: straight, bending, and combined bending and torsion. Finally, the experimental observations have been compared with the theoretical predictions.

Original language	English
Article number	8186202
Journal	IEEE Transactions on Applied Superconductivity
Volume	28
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2017.2782217
Publication status	Published - 2018 Apr

Bibliographical note

Funding Information:
Manuscript received August 28, 2017; accepted November 27, 2017. Date of publication December 11, 2017; date of current version January 19, 2018. This work was supported in part by the National Research Foundation of Korea grant funded by the Korea government (MSIP), and in part by “Human Resources Program in Energy Technology” of Korea Institute of Energy Technology Evaluation and Planning, granted financial resource from the Ministry of Trade, Industry, and Energy, Republic of Korea, under Grants 2016R1A2B4007324 and 20164030201100. (Corresponding author: Yong Soo Yoon.) S. Han, J. Lee, H. Jeon, and T. K. Ko are with the School of Electrical and Electronic Engineering, Yonsei University, Seoul 30722, South Korea.

Publisher Copyright:
© 2002-2011 IEEE.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/TASC.2017.2782217

Cite this

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title = "Degradation of Critical Current in an HTS Tape with Combined Bending and Torsion Considering Curvature of Elliptical Shape",

abstract = "Degradation of critical current (Ic) in a high-temperature superconducting (HTS) tape under bending conditions had been previously investigated. These investigations were focused on only either bending or torsion. A rotating flux pump is used to study the charging characteristics of an HTS synchronous motor. In order to design the rotating flux pump connected in series, the elliptical winding applied together with combined bending and torsion is essential. Therefore, in this paper, the critical current considering curvature of elliptical shape is measured with regard to nine kinds of mandrels. The shapes of the mandrels are a tall prolate ellipsoid, oblate ellipsoid, and semicircle. The diameters of each shape are 20, 30, and 40 mm, respectively. The experiments are mainly composed of three conditions: straight, bending, and combined bending and torsion. Finally, the experimental observations have been compared with the theoretical predictions.",

author = "Seunghak Han and Jeyull Lee and Haeryong Jeon and Kim, {Ji Hyung} and Hyeon, {Chang Ju} and Kim, {Ho Min} and Hyoungku Kang and Ko, {Tae Kuk} and Yoon, {Yong Soo}",

note = "Funding Information: Manuscript received August 28, 2017; accepted November 27, 2017. Date of publication December 11, 2017; date of current version January 19, 2018. This work was supported in part by the National Research Foundation of Korea grant funded by the Korea government (MSIP), and in part by “Human Resources Program in Energy Technology” of Korea Institute of Energy Technology Evaluation and Planning, granted financial resource from the Ministry of Trade, Industry, and Energy, Republic of Korea, under Grants 2016R1A2B4007324 and 20164030201100. (Corresponding author: Yong Soo Yoon.) S. Han, J. Lee, H. Jeon, and T. K. Ko are with the School of Electrical and Electronic Engineering, Yonsei University, Seoul 30722, South Korea. Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

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Degradation of Critical Current in an HTS Tape with Combined Bending and Torsion Considering Curvature of Elliptical Shape

Abstract

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