CUED Publications database

Complex study of transport AC loss in various 2G HTS racetrack coils

Chen, Y and Zhang, M and Chudy, M and Matsuda, K and Coombs, T (2013) Complex study of transport AC loss in various 2G HTS racetrack coils. Physica C: Superconductivity and its Applications, 487. pp. 31-36. ISSN 0921-4534

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Abstract

HTS racetrack coils are becoming important elements of an emerging number of superconducting devices such as generators or motors. In these devices the issue of AC loss is crucial, as performance and cooling power are derived from this quantity. This paper presents a comparative study of transport AC loss in two different types of 2G HTS racetrack coils. In this study, both experimental measurements and computer simulation approaches were employed. All the experiments were performed using classical AC electrical method. The finite-element computer model was used to estimate electromagnetic properties and calculate transport AC loss. The main difference between the characterized coils is covered inside tape architectures. While one coil uses tape based on RABITS magnetic substrate, the second coil uses a non-magnetic tape. Ferromagnetic loss caused by a magnetic substrate is an important issue involved in the total AC loss. As a result, the coil with the magnetic substrate surprised with high AC loss and rather low performance. © 2013 Elsevier B.V. All rights reserved.

Item Type: Article
Uncontrolled Keywords: AC losses HTS Substrate
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:41
Last Modified: 08 Dec 2014 02:21
DOI: 10.1016/j.physc.2013.02.003