Validation of the high performance conduction-cooled prototype LTS pulse coil for UPS-SMES

Toshiyuki Mito; Akifumi Kawagoe; Hirotaka Chikaraishi; Ryuji Maekawa; Kagao Okumura; Ryo Abe; Tomosumi Baba; Tsutomu Hemmi; Masataka Iwakuma; Mitsuhiro Yokota; Hideki Ogawa; Yoshitaka Morita; Kenji Yamauchi; Atsuko Kuge; Fumio Sumiyoshi

doi:10.1109/TASC.2006.870791

Validation of the high performance conduction-cooled prototype LTS pulse coil for UPS-SMES

Toshiyuki Mito, Akifumi Kawagoe, Hirotaka Chikaraishi, Ryuji Maekawa, Kagao Okumura, Ryo Abe, Tomosumi Baba, Tsutomu Hemmi, Masataka Iwakuma, Mitsuhiro Yokota, Hideki Ogawa, Yoshitaka Morita, Kenji Yamauchi, Atsuko Kuge, Fumio Sumiyoshi

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11 Scopus citations

Abstract

A conduction-cooled low temperature superconducting (LTS) pulse coil has been developed as a key technology for UPS-SMES. We have been developing a 1 MW, l s UPS-SMES for a protection from a momentary voltage drop and an instant power failure. A conduction-cooled LTS pulse coil has excellent characteristics, which are adequate for a short-time uninterruptible power supply (UPS). The LTS coil has better cost performance over the HTS coil at present and the conduction cooling has higher reliability and easier operation than the conventional cooling schemes such as pool boiling with liquid helium or forced flow of supercritical helium. To demonstrate the high performances of the LTS pulse coil, we have fabricated a prototype coil with stored energy of 100 kj and have conducted cooling and excitation tests. The successful performance test results including current shut-off test with a time constant of 1.3 s and repeated excitation of a triangular waveform with high ramp rate are reported.

Original language	English
Article number	1642922
Pages (from-to)	608-611
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	16
Issue number	2
DOIs	https://doi.org/10.1109/TASC.2006.870791
State	Published - Jun 2006
Externally published	Yes

Funding

Manuscript received September 20, 2005. This work was supported by NIFS (NIFS05ULAA102), the grand of NEDO and the grand-in aid for Scientific Research (#16206028). T. Mito, H. Chikaraishi, R. Maekawa, T. Baba, M. Yokota, H. Ogawa, Y. Morita, and K. Yamauchi are with the National Institute for Fusion Science, Toki, Gifu 509-5292, Japan (e-mail: [email protected]). A. Kawagoe and F. Sumiyoshi are with Kagoshima University, Kagoshima 890-0065, Japan. K. Okumura and A. Kuge are with Technova Inc., Chiyoda-ku, Tokyo 100-0011, Japan. R. Abe is with Shibuya Kogyo Co., Ltd., Mameda-honmachi, Kanazawa 920-8681, Japan. T. Hemmi is with the Graduate University for Advanced Studies, Toki, Gifu 509-5292, Japan. M. Iwakuma is with Kyushu Univiersity, Higashi-ku, Fukuoka 812-8581, Japan. Digital Object Identifier 10.1109/TASC.2006.870791

Keywords

Conduction cooled
Momentary voltage drop
Superconducting pulse coil
UPS-SMES

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10.1109/TASC.2006.870791

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Mito, T., Kawagoe, A., Chikaraishi, H., Maekawa, R., Okumura, K., Abe, R., Baba, T., Hemmi, T., Iwakuma, M., Yokota, M., Ogawa, H., Morita, Y., Yamauchi, K., Kuge, A., & Sumiyoshi, F. (2006). Validation of the high performance conduction-cooled prototype LTS pulse coil for UPS-SMES. IEEE Transactions on Applied Superconductivity, 16(2), 608-611. Article 1642922. https://doi.org/10.1109/TASC.2006.870791

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title = "Validation of the high performance conduction-cooled prototype LTS pulse coil for UPS-SMES",

abstract = "A conduction-cooled low temperature superconducting (LTS) pulse coil has been developed as a key technology for UPS-SMES. We have been developing a 1 MW, l s UPS-SMES for a protection from a momentary voltage drop and an instant power failure. A conduction-cooled LTS pulse coil has excellent characteristics, which are adequate for a short-time uninterruptible power supply (UPS). The LTS coil has better cost performance over the HTS coil at present and the conduction cooling has higher reliability and easier operation than the conventional cooling schemes such as pool boiling with liquid helium or forced flow of supercritical helium. To demonstrate the high performances of the LTS pulse coil, we have fabricated a prototype coil with stored energy of 100 kj and have conducted cooling and excitation tests. The successful performance test results including current shut-off test with a time constant of 1.3 s and repeated excitation of a triangular waveform with high ramp rate are reported.",

keywords = "Conduction cooled, Momentary voltage drop, Superconducting pulse coil, UPS-SMES",

author = "Toshiyuki Mito and Akifumi Kawagoe and Hirotaka Chikaraishi and Ryuji Maekawa and Kagao Okumura and Ryo Abe and Tomosumi Baba and Tsutomu Hemmi and Masataka Iwakuma and Mitsuhiro Yokota and Hideki Ogawa and Yoshitaka Morita and Kenji Yamauchi and Atsuko Kuge and Fumio Sumiyoshi",

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Mito, T, Kawagoe, A, Chikaraishi, H, Maekawa, R, Okumura, K, Abe, R, Baba, T, Hemmi, T, Iwakuma, M, Yokota, M, Ogawa, H, Morita, Y, Yamauchi, K, Kuge, A & Sumiyoshi, F 2006, 'Validation of the high performance conduction-cooled prototype LTS pulse coil for UPS-SMES', IEEE Transactions on Applied Superconductivity, vol. 16, no. 2, 1642922, pp. 608-611. https://doi.org/10.1109/TASC.2006.870791

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T1 - Validation of the high performance conduction-cooled prototype LTS pulse coil for UPS-SMES

AU - Mito, Toshiyuki

AU - Kawagoe, Akifumi

AU - Chikaraishi, Hirotaka

AU - Maekawa, Ryuji

AU - Okumura, Kagao

AU - Abe, Ryo

AU - Baba, Tomosumi

AU - Hemmi, Tsutomu

AU - Iwakuma, Masataka

AU - Yokota, Mitsuhiro

AU - Ogawa, Hideki

AU - Morita, Yoshitaka

AU - Yamauchi, Kenji

AU - Kuge, Atsuko

AU - Sumiyoshi, Fumio

PY - 2006/6

Y1 - 2006/6

N2 - A conduction-cooled low temperature superconducting (LTS) pulse coil has been developed as a key technology for UPS-SMES. We have been developing a 1 MW, l s UPS-SMES for a protection from a momentary voltage drop and an instant power failure. A conduction-cooled LTS pulse coil has excellent characteristics, which are adequate for a short-time uninterruptible power supply (UPS). The LTS coil has better cost performance over the HTS coil at present and the conduction cooling has higher reliability and easier operation than the conventional cooling schemes such as pool boiling with liquid helium or forced flow of supercritical helium. To demonstrate the high performances of the LTS pulse coil, we have fabricated a prototype coil with stored energy of 100 kj and have conducted cooling and excitation tests. The successful performance test results including current shut-off test with a time constant of 1.3 s and repeated excitation of a triangular waveform with high ramp rate are reported.

AB - A conduction-cooled low temperature superconducting (LTS) pulse coil has been developed as a key technology for UPS-SMES. We have been developing a 1 MW, l s UPS-SMES for a protection from a momentary voltage drop and an instant power failure. A conduction-cooled LTS pulse coil has excellent characteristics, which are adequate for a short-time uninterruptible power supply (UPS). The LTS coil has better cost performance over the HTS coil at present and the conduction cooling has higher reliability and easier operation than the conventional cooling schemes such as pool boiling with liquid helium or forced flow of supercritical helium. To demonstrate the high performances of the LTS pulse coil, we have fabricated a prototype coil with stored energy of 100 kj and have conducted cooling and excitation tests. The successful performance test results including current shut-off test with a time constant of 1.3 s and repeated excitation of a triangular waveform with high ramp rate are reported.

KW - Conduction cooled

KW - Momentary voltage drop

KW - Superconducting pulse coil

KW - UPS-SMES

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Validation of the high performance conduction-cooled prototype LTS pulse coil for UPS-SMES

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Keywords

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