HTS magnet for maglev applications (2) - Magnet structure and performance

被引：13

作者：

Nemoto, Kaoru

Terai, Motoaki

Igarashi, Motohiro

Okutomi, Takeshi

Hirano, Satoshi

Kuwano, Katsuyuki

Kusada, Shigehisa

Yamashita, Tomohisa

Yanase, Yasuto

Kuriyama, Toru

Tosaka, Taizo

Tasaki, Kenji

Marukawa, Kotaro

Hanai, Satoshi

Yamaji, Mutsuhiko

Nakao, Hiroyuki

机构：

[1] Cent Japan Railway Co, Minato Ku, Tokyo 1088204, Japan

[2] Cent Japan Railway Co, Yamanashi 4020015, Japan

[3] Toshiba Corp Fuchu Works, Tokyo 1838511, Japan

[4] Toshiba Co Ltd, Power & Ind Syst Res & Dev Ctr, Yokohama, Kanagawa 2300045, Japan

[5] Toshiba Co Ltd, Tokyo 1058001, Japan

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2006年 / 16卷 / 02期

关键词：

Bi2223; current lead; maglev; superconducting magnet; vibrations;

D O I：

10.1109/TASC.2006.871281

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

An HTS magnet. for maglev application has been developed. The magnet consists of four persistent-current HTS coils, and is operated at a rated temperature of 20 K and a rated magnetomotive force of 750 kA for each coil. This paper describes the structure and performance test results of the HTS magnet. The four HTS coils are installed in a cryostat and conductively cooled by two sets of two-stage GM type pulse tube cryocoolers below 20 K. Detachable current leads, which are composed of connectors and ultrasonic motors, are adopted to reduce the heat leakage to the 1st stage cold head of the cryocoolers. The HTS coils are simultaneously charged up to the rated magnetomotive force. Persistent current operating tests were carried out and the current decay rates of 0.4-0.7 %/day were attained. Also, in order to evaluate the mechanical capability of the magnet, vibration tests were conducted and permissible vibration responses were obtained.

引用

页码：1104 / 1107

页数：4