Design and development of superconducting DC cable for railway applications

M. Tomita, Muralidhar Miryala, Y. Fukumoto, A. Ishihara, K. Suzuki, Y. Kobayashi, T. Akasaka

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

We report the recent development in the national project dealing with a prototype of the next generation dc superconducting cable for railways. The main goal of the project is to upgrade the feeder of the overhead contact line system connecting the electric train with the substation. The superconducting cables are usually considered to reduce the resistive losses generated in a conventional feeding system mainly in the catenary wires. In this paper, various cable structures existing in the railway network were studied with respect of their use in the next generation of railways. The superconducting cables need to be cooled below 77 K. They consist of coaxially configured conductors and sheaths. Liquid nitrogen is forced to flow through these coaxial cables. Various designs and configurations of the cooling systems possess always some advantages and some drawbacks. Our systematic analysis showed that a 'go and return' system, where the liquid nitrogen flows through the hollow former and returns through the space between the outer layer of the HTS tapes and the cryostat wall is most effective for the railway applications; it saves both space and costs.

Original languageEnglish
Article number6478780
JournalIEEE Transactions on Applied Superconductivity
Volume23
Issue number3
DOIs
Publication statusPublished - 2013
Externally publishedYes

Fingerprint

Superconducting cables
cables
Cables
direct current
Liquid nitrogen
liquid nitrogen
Coaxial cables
Cryostats
Cooling systems
coaxial cables
Tapes
feeders
cooling systems
cryostats
sheaths
Wire
tapes
hollow
conductors
prototypes

Keywords

  • Bi-2223
  • critical current (I)
  • dc HTS cable
  • railway systems

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Design and development of superconducting DC cable for railway applications. / Tomita, M.; Miryala, Muralidhar; Fukumoto, Y.; Ishihara, A.; Suzuki, K.; Kobayashi, Y.; Akasaka, T.

In: IEEE Transactions on Applied Superconductivity, Vol. 23, No. 3, 6478780, 2013.

Research output: Contribution to journalArticle

Tomita, M. ; Miryala, Muralidhar ; Fukumoto, Y. ; Ishihara, A. ; Suzuki, K. ; Kobayashi, Y. ; Akasaka, T. / Design and development of superconducting DC cable for railway applications. In: IEEE Transactions on Applied Superconductivity. 2013 ; Vol. 23, No. 3.
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