TY - JOUR
T1 - Stability analysis of MgB2 Coils for SMES application consisting of large-scale rutherford cables
AU - Yagai, Tsuyoshi
AU - Okubo, Toru
AU - Hira, Moeto
AU - Kamibayashi, Masahiro
AU - Jimbo, Mana
AU - Kuwabara, Yusuke
AU - Takao, Tomoaki
AU - Makida, Yasuhiro
AU - Shintomi, Takakazu
AU - Hirano, Naoki
AU - Komagome, Toshihiro
AU - Tsukada, Kenichi
AU - Onji, Taiki
AU - Arai, Yuki
AU - Ishihara, Atsushi
AU - Tomita, Masaru
AU - Miyagi, Daisuke
AU - Tsuda, Makoto
AU - Hamajima, Takataro
N1 - Funding Information:
Manuscript received October 30, 2018; accepted March 5, 2019. Date of publication March 13, 2019; date of current version April 22, 2019. This work was supported by the Advanced Low Carbon Reduction Technology R&D (ALCA), Japan Science and Technology Agency, under Grant JPMJAL1002. (Corresponding author: Tsuyoshi Yagai.) T. Yagai, T. Okubo, M. Hira, M. Kamibayashi, M. Jimbo, Y. Kuwabara, and T. Takao are with the Faculty of Science and Technology, Sophia University, Tokyo 102-8554, Japan (e-mail:,[email protected]). Y. Makida and T. Shintomi are with the High Energy Accelerator Research Organization, Ibaraki 305-0801, Japan. N. Hirano is with the CHUBU Electric Power Company, Inc., Nagoya 460-0001, Japan. T. Komagome, K. Tsukada, and T. Hamajima are with the MAYEKAWA MFG Company Ltd., Tokyo 135-8482, Japan. T. Onji, Y. Arai, and M. Tomita are with the Railway Technical Research Institute, Ibaraki 302-0118, Japan. D. Miyagi and M. Tsuda are with the Faculty of Electric Engineering and Information Engineering, Tohoku University, Sendai 980-8577, Japan. Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TASC.2019.2904805 Fig. 1. The conductor designs for both W&R and R&W coils. The rated currents are the same for both conductors, but the number of strands are 8 and 10 for W&R and R&W conductor, respectively.
Publisher Copyright:
© 2002-2011 IEEE.
PY - 2019/8
Y1 - 2019/8
N2 - MgB2 wires have been provided by several manufacturers, showing enough critical current (Ic) for practical applications in relatively low-field. Because the MgB2 has critical temperature above boiling temperature of hydrogen, dc power distribution system with low carbon emission using MgB2 superconducting magnetic energy storage (SMES), named advanced superconducting power conditioning system has been proposed. For the system, the MgB2 coil production technology obtaining 30 kJ stored energy the investigation about the SMES coil consists of 600 A, 1.7-T Rutherford-type conductors made of commercially-available MgB2 wires. Due to strain sensitivity before/after heat treatment for MgB2 production, the proper designs of the large-scale twisted conductors both in wind and react, react and wind methods are needed, choosing optimized twist pitches and cable compaction factors. To demonstrate the SMES coil performance, we have been carried out the test campaign of conductors and small prototype coils in various temperature and background field conditions. These results are used for a computer simulation for estimating full size double pancake coil performance of the system, based on the non-steady state heat conduction analysis. The calculated result seems to be a good tool for predicting coil performance for the large capacity energy storage operation.
AB - MgB2 wires have been provided by several manufacturers, showing enough critical current (Ic) for practical applications in relatively low-field. Because the MgB2 has critical temperature above boiling temperature of hydrogen, dc power distribution system with low carbon emission using MgB2 superconducting magnetic energy storage (SMES), named advanced superconducting power conditioning system has been proposed. For the system, the MgB2 coil production technology obtaining 30 kJ stored energy the investigation about the SMES coil consists of 600 A, 1.7-T Rutherford-type conductors made of commercially-available MgB2 wires. Due to strain sensitivity before/after heat treatment for MgB2 production, the proper designs of the large-scale twisted conductors both in wind and react, react and wind methods are needed, choosing optimized twist pitches and cable compaction factors. To demonstrate the SMES coil performance, we have been carried out the test campaign of conductors and small prototype coils in various temperature and background field conditions. These results are used for a computer simulation for estimating full size double pancake coil performance of the system, based on the non-steady state heat conduction analysis. The calculated result seems to be a good tool for predicting coil performance for the large capacity energy storage operation.
KW - Large-scale conductor
KW - MgB strand
KW - rutherford cable
KW - superconducting magnetic energy storage (SMES)
UR - http://www.scopus.com/inward/record.url?scp=85065060027&partnerID=8YFLogxK
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U2 - 10.1109/TASC.2019.2904805
DO - 10.1109/TASC.2019.2904805
M3 - Article
AN - SCOPUS:85065060027
SN - 1051-8223
VL - 29
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
IS - 5
M1 - 8666761
ER -