Superconducting traction transformer: traction - the HTS transformer killer application?

Song, W. , Jiang, Z., Staines, M., Wimbush, S., Fang, J., Zhang, J. and Badcock, R. (2021) Superconducting traction transformer: traction - the HTS transformer killer application? Transformers Magazine, pp. 4-16.

Abstract

An ongoing project to develop HTS traction transformers for the Chinese Fuxing high-speed train is demonstrating that the high power density accessible using high temperature superconductors (HTS) can produce spectacular results: the existing 6.5 MVA traction transformers can be replaced with drop-in superconducting transformers which can achieve targets of less than 3 tons transformer system weight and 99.5% efficiency compared to 6 tons and 95% in the existing devices. The key to achieving these impressive figures is minimising the AC loss of the HTS windings. New high-performance wire, high current HTS Roebel conductor, high aspect-ratio windings, and flux diverters placed at the winding ends all contribute to reducing the electrical loss to less than 2 kW.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Song, Dr Wenjuan
• Authors: Song, W., Jiang, Z., Staines, M., Wimbush, S., Fang, J., Zhang, J., and Badcock, R.
• College/School: College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
• Journal Name: Transformers Magazine
• Publisher: Merit Media International
• ISSN: 1849-3319
• ISSN (Online): 1849-7268
• Copyright Holders: Copyright © 2021 Merit Media
• First Published: First published in Transformers Magazine 2021
• Publisher Policy: Reproduced in accordance with the publisher copyright policy