Characteristics analysis of a high-Tc superconducting power supply considering flux creep effect

Yong Soo Yoon; Ho Min Kim; Minseok Joo; Duck Kweon Bae; Min Cheol Ahn; Tae Kuk Ko

doi:10.1109/TASC.2006.873997

Characteristics analysis of a high-Tc superconducting power supply considering flux creep effect

Yong Soo Yoon, Ho Min Kim, Minseok Joo, Duck Kweon Bae, Min Cheol Ahn, Tae Kuk Ko

Department of Electrical and Electronic Engineering

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

13 Citations (Scopus)

Abstract

This paper describes the characteristics analysis of a high-Tc superconducting (HTSC) power supply considering flux creep effect, and also presents its operational characteristics through experiments. The power supply can be employed to charge an HTSC magnet. An HTSC power supply consists of two heaters, an electromagnet, a Bi-2223 solenoid, and a series-connected Bi-2223 pancake load. The pancake load was fabricated by connecting four double pancake coils in series. In the experiments, two cases of the pumping period, which correspond to 8.5 and 17 s, were used with an electromagnet of 331 mH and a dc heater current of 0.8 A. A region of the superconducting tape with a buried heating coil can be switched by means of its temperature change. In order to measure the pumping-current with respect to the magnet flux changes, a hall sensor was installed at the center of the Bi-2223 pancake load. The experimental observations have been compared with the theoretical predictions. In this experiment, the pumping-current has reached about 22.9 A.

Original language	English
Article number	1687912
Pages (from-to)	1918-1923
Number of pages	6
Journal	IEEE Transactions on Applied Superconductivity
Volume	16
Issue number	3
DOIs	https://doi.org/10.1109/TASC.2006.873997
Publication status	Published - 2006 Sept

Bibliographical note

Funding Information:
Manuscript received June 8, 2005; revised December 28, 2005. This paper was recommended by Associate Editor W. S. Schwenterly. This work was supported by KESRI (R-2005-B-113), which was funded by the Ministry of Commerce, Industry, and Energy (MOCIE). Y. S. Yoon is with the Electrical Engineering Department, Ansan College of Technology, Danwon-Gu, Ansan 425-792, Korea (e-mail: ysyoon@act.ac.kr). H. M. Kim is with the LS Industrial System Co. Ltd., Chungju 361-720, Korea (e-mail: hominkim@lsis.biz). M. Joo, M. C. Ahn, and T. K. Ko are with the Electrical and Electronic Engineering Department, Yonsei University, Seodaemoon-Gu, Seoul 120-749, Korea (e-mail: tkko@yonsei.ac.kr). D. K. Bae is with the Korea Institute of Machinery and Materials, Yuseong-gu, Daejeon 305-343, Korea (e-mail: porthos@kimm.re.kr). Digital Object Identifier 10.1109/TASC.2006.873997

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.2006.873997

Cite this

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title = "Characteristics analysis of a high-Tc superconducting power supply considering flux creep effect",

abstract = "This paper describes the characteristics analysis of a high-Tc superconducting (HTSC) power supply considering flux creep effect, and also presents its operational characteristics through experiments. The power supply can be employed to charge an HTSC magnet. An HTSC power supply consists of two heaters, an electromagnet, a Bi-2223 solenoid, and a series-connected Bi-2223 pancake load. The pancake load was fabricated by connecting four double pancake coils in series. In the experiments, two cases of the pumping period, which correspond to 8.5 and 17 s, were used with an electromagnet of 331 mH and a dc heater current of 0.8 A. A region of the superconducting tape with a buried heating coil can be switched by means of its temperature change. In order to measure the pumping-current with respect to the magnet flux changes, a hall sensor was installed at the center of the Bi-2223 pancake load. The experimental observations have been compared with the theoretical predictions. In this experiment, the pumping-current has reached about 22.9 A.",

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AU - Ahn, Min Cheol

AU - Ko, Tae Kuk

N1 - Funding Information: Manuscript received June 8, 2005; revised December 28, 2005. This paper was recommended by Associate Editor W. S. Schwenterly. This work was supported by KESRI (R-2005-B-113), which was funded by the Ministry of Commerce, Industry, and Energy (MOCIE). Y. S. Yoon is with the Electrical Engineering Department, Ansan College of Technology, Danwon-Gu, Ansan 425-792, Korea (e-mail: ysyoon@act.ac.kr). H. M. Kim is with the LS Industrial System Co. Ltd., Chungju 361-720, Korea (e-mail: hominkim@lsis.biz). M. Joo, M. C. Ahn, and T. K. Ko are with the Electrical and Electronic Engineering Department, Yonsei University, Seodaemoon-Gu, Seoul 120-749, Korea (e-mail: tkko@yonsei.ac.kr). D. K. Bae is with the Korea Institute of Machinery and Materials, Yuseong-gu, Daejeon 305-343, Korea (e-mail: porthos@kimm.re.kr). Digital Object Identifier 10.1109/TASC.2006.873997

PY - 2006/9

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N2 - This paper describes the characteristics analysis of a high-Tc superconducting (HTSC) power supply considering flux creep effect, and also presents its operational characteristics through experiments. The power supply can be employed to charge an HTSC magnet. An HTSC power supply consists of two heaters, an electromagnet, a Bi-2223 solenoid, and a series-connected Bi-2223 pancake load. The pancake load was fabricated by connecting four double pancake coils in series. In the experiments, two cases of the pumping period, which correspond to 8.5 and 17 s, were used with an electromagnet of 331 mH and a dc heater current of 0.8 A. A region of the superconducting tape with a buried heating coil can be switched by means of its temperature change. In order to measure the pumping-current with respect to the magnet flux changes, a hall sensor was installed at the center of the Bi-2223 pancake load. The experimental observations have been compared with the theoretical predictions. In this experiment, the pumping-current has reached about 22.9 A.

AB - This paper describes the characteristics analysis of a high-Tc superconducting (HTSC) power supply considering flux creep effect, and also presents its operational characteristics through experiments. The power supply can be employed to charge an HTSC magnet. An HTSC power supply consists of two heaters, an electromagnet, a Bi-2223 solenoid, and a series-connected Bi-2223 pancake load. The pancake load was fabricated by connecting four double pancake coils in series. In the experiments, two cases of the pumping period, which correspond to 8.5 and 17 s, were used with an electromagnet of 331 mH and a dc heater current of 0.8 A. A region of the superconducting tape with a buried heating coil can be switched by means of its temperature change. In order to measure the pumping-current with respect to the magnet flux changes, a hall sensor was installed at the center of the Bi-2223 pancake load. The experimental observations have been compared with the theoretical predictions. In this experiment, the pumping-current has reached about 22.9 A.

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ER -

Characteristics analysis of a high-Tc superconducting power supply considering flux creep effect

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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