CUED Publications database

Alternating current loss of second-generation high-temperature superconducting coils with magnetic and non-magnetic substrate

Zhang, M and Kvitkovic, J and Kim, J-H and Kim, CH and Pamidi, SV and Coombs, TA (2012) Alternating current loss of second-generation high-temperature superconducting coils with magnetic and non-magnetic substrate. Applied Physics Letters, 101. ISSN 0003-6951

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Abstract

It is widely believed that the second-generation high-temperature superconducting (2G HTS) tapes with magnetic substrates suffer higher transport loss compared to those with non-magnetic substrates. To test this, we prepared two identical coils with magnetic and non-magnetic substrates, respectively. The experimental result was rather surprising that they generated roughly the same amount of transport loss. We used finite element method to understand this result. It is found that, unlike in the single tape where the magnetic field-dependent critical current characteristic can be neglected and the effect of magnetic substrate dominates, the magnetic field-dependent critical current characteristic of 2G tape plays as an equally important role as magnetic substrate in terms of HTS coils. © 2012 American Institute of Physics.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:26
Last Modified: 08 Dec 2014 02:21
DOI: 10.1063/1.4749275