Test and Analysis of Electromagnetic and Mechanical Properties of HTS Coil during Quench State

Young Gun Park; Hyun Chul Jo; Jeyull Lee; Ho Min Kim; Yoon Do Chung; Yong Chu; Kyung Yong Yoon; Tae Kuk Ko; Yong Soo Yoon

doi:10.1109/TASC.2016.2540812

Test and Analysis of Electromagnetic and Mechanical Properties of HTS Coil during Quench State

Young Gun Park, Hyun Chul Jo, Jeyull Lee, Ho Min Kim, Yoon Do Chung, Yong Chu, Kyung Yong Yoon, Tae Kuk Ko, Yong Soo Yoon

Department of Electrical and Electronic Engineering

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

4 Citations (Scopus)

Abstract

This paper deals with the analysis of the electromagnetic and mechanical properties of a high-temperature superconducting (HTS) coil, as well as its characteristic as determined through tests using strain gauges. When an operating current is applied to an HTS coil, strain is generated by electromagnetic force. However, additional strain effects in the HTS coil are formed by the Joule heating during quench. Strain was measured with a full-bridge strain gauge mounted directly over the turns. We fabricated an HTS coil wound in a single pancake type to investigate strain characteristics. We also investigated structural analysis by a finite-element method to calculate the strain of the HTS coil. In tests, the strain in the HTS coil was measured during excitation. Test results of the HTS coil have been compared with the theoretical results. Finally, we performed quench propagation tests and could verify the strain effect during quench. The reaction times of the strain gauge at 30 and 80 A are 31.8 and 4.3 s, respectively.

Original language	English
Article number	4602104
Journal	IEEE Transactions on Applied Superconductivity
Volume	26
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2016.2540812
Publication status	Published - 2016 Apr

Bibliographical note

Funding Information:
This work was supported by the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology (2011-0009232).

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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title = "Test and Analysis of Electromagnetic and Mechanical Properties of HTS Coil during Quench State",

abstract = "This paper deals with the analysis of the electromagnetic and mechanical properties of a high-temperature superconducting (HTS) coil, as well as its characteristic as determined through tests using strain gauges. When an operating current is applied to an HTS coil, strain is generated by electromagnetic force. However, additional strain effects in the HTS coil are formed by the Joule heating during quench. Strain was measured with a full-bridge strain gauge mounted directly over the turns. We fabricated an HTS coil wound in a single pancake type to investigate strain characteristics. We also investigated structural analysis by a finite-element method to calculate the strain of the HTS coil. In tests, the strain in the HTS coil was measured during excitation. Test results of the HTS coil have been compared with the theoretical results. Finally, we performed quench propagation tests and could verify the strain effect during quench. The reaction times of the strain gauge at 30 and 80 A are 31.8 and 4.3 s, respectively.",

author = "Park, {Young Gun} and Jo, {Hyun Chul} and Jeyull Lee and Kim, {Ho Min} and Chung, {Yoon Do} and Yong Chu and Yoon, {Kyung Yong} and Ko, {Tae Kuk} and Yoon, {Yong Soo}",

note = "Funding Information: This work was supported by the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology (2011-0009232). Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

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doi = "10.1109/TASC.2016.2540812",

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Test and Analysis of Electromagnetic and Mechanical Properties of HTS Coil during Quench State. / Park, Young Gun; Jo, Hyun Chul; Lee, Jeyull; Kim, Ho Min; Chung, Yoon Do; Chu, Yong; Yoon, Kyung Yong; Ko, Tae Kuk; Yoon, Yong Soo.

In: IEEE Transactions on Applied Superconductivity, Vol. 26, No. 3, 4602104, 04.2016.

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

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AU - Chu, Yong

AU - Yoon, Kyung Yong

AU - Ko, Tae Kuk

AU - Yoon, Yong Soo

N1 - Funding Information: This work was supported by the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education, Science and Technology (2011-0009232). Publisher Copyright: © 2002-2011 IEEE.

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N2 - This paper deals with the analysis of the electromagnetic and mechanical properties of a high-temperature superconducting (HTS) coil, as well as its characteristic as determined through tests using strain gauges. When an operating current is applied to an HTS coil, strain is generated by electromagnetic force. However, additional strain effects in the HTS coil are formed by the Joule heating during quench. Strain was measured with a full-bridge strain gauge mounted directly over the turns. We fabricated an HTS coil wound in a single pancake type to investigate strain characteristics. We also investigated structural analysis by a finite-element method to calculate the strain of the HTS coil. In tests, the strain in the HTS coil was measured during excitation. Test results of the HTS coil have been compared with the theoretical results. Finally, we performed quench propagation tests and could verify the strain effect during quench. The reaction times of the strain gauge at 30 and 80 A are 31.8 and 4.3 s, respectively.

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Test and Analysis of Electromagnetic and Mechanical Properties of HTS Coil during Quench State

Abstract

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