TY - JOUR
T1 - Winding techniques for conduction cooled LTS pulse coils for 100 kJ class UPS-SMES as a protection from momentary voltage drops
AU - Kawagoe, Akifumi
AU - Sumiyoshi, Fumio
AU - Mito, Toshisyuki
AU - Chikaraishi, Hirotaka
AU - Baba, Tomosumi
AU - Okumura, Kagao
AU - Iwakuma, Masataka
AU - Hemmi, Tsutomu
AU - Hayashi, Kazuo
AU - Abe, Ryo
AU - Ushiku, Toshio
AU - Miyoshi, Kazutomi
N1 - Funding Information:
Manuscript received October 21, 2003. This work was supported in part by the grand of NEDO. A. Kawagoe and F. Sumiyoshi are with Kagoshima University, 890-0065, Japan (e-mail: kawagoe@eee.kagoshima-u.ac.jp). T. Mito, H. Chikaraishi, and T. Baba are with the National Institute for Fusion Science, Toki, Gifu, 509-5292, Japan. K. Okumura is with the Technova Inc., 13th Fl. Imperial Tower, Chiyoda-ku, Tokyo, 100-0011, Japan. M. Iwakuma is with Kyusyu University, 601901, Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan. T. Henmi is with Gradient University for Advanced Studies, Toki, Gifu, 509-5292, Japan. K. Hayashi, R. Abe, and T. Ushiku are with the IDX Co., DE Edison Bld., Higashigotanda, Shinagawa-ku, Tokyo, 141-0022, Japan. K. Miyoshi is with Furukawa Electric Company, 500 Kiyotaki, Nikko-city, Tochigi, 3321-1493, Japan. Digital Object Identifier 10.1109/TASC.2004.830086
PY - 2004/6
Y1 - 2004/6
N2 - In order to develop the 100 kJ class UPS-SMES as a protection from momentary voltage drops, design of the conduction cooled LTS pulse coil was carried out and special winding machine has been developed. Such coil is required to simultaneously attain low ac loss and high stability and the distributions of temperature in the coil are sensitively controlled. For this purpose, an aluminum stabilized conductor with circular cross-section composed of a Cu stabilized NbTi Rutherford cable was used as the winding conductor, and in the winding process the twist angle of the conductor around its axis was controlled to adjust the direction of edge-on orientation to the Rutherford cable to direction of local transverse magnetic fields applied to the conductor in winding area of the coil. The developed winding machine is used for this winding method. As a result, conduction cooled LTS pulse coil can be expected to operate stably in adequate temperature margin. Conduction cooling, momentary voltage drop, UPS-SMES.
AB - In order to develop the 100 kJ class UPS-SMES as a protection from momentary voltage drops, design of the conduction cooled LTS pulse coil was carried out and special winding machine has been developed. Such coil is required to simultaneously attain low ac loss and high stability and the distributions of temperature in the coil are sensitively controlled. For this purpose, an aluminum stabilized conductor with circular cross-section composed of a Cu stabilized NbTi Rutherford cable was used as the winding conductor, and in the winding process the twist angle of the conductor around its axis was controlled to adjust the direction of edge-on orientation to the Rutherford cable to direction of local transverse magnetic fields applied to the conductor in winding area of the coil. The developed winding machine is used for this winding method. As a result, conduction cooled LTS pulse coil can be expected to operate stably in adequate temperature margin. Conduction cooling, momentary voltage drop, UPS-SMES.
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U2 - 10.1109/TASC.2004.830086
DO - 10.1109/TASC.2004.830086
M3 - Article
AN - SCOPUS:4344602155
VL - 14
SP - 727
EP - 730
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 2
ER -