https://doi.org/10.1140/epjs/s11734-025-01659-z
Regular Article
Design and analysis of a superconducting cable-excited linear motor
School of Automation and Artificial Intelligence, Nanjing University of Posts and Telecommunications, No. 9 Wenyuan Road, 210000, Nanjing, Jiangsu, China
Received:
12
May
2024
Accepted:
25
April
2025
Published online:
9
May
2025
A linear motor with superconducting cable excitation is proposed as a potential solution. In comparison to the conventional high-temperature superconducting linear motor, this motor employs an alternately positioned C-shaped and T-shaped core configuration for direct current excitation. This configuration offers a more straightforward and stable excitation system structure, rendering it suitable for deployment in the field of long-stroke and large-capacity linear motor drives. Furthermore, the comprehensive utilisation of a superconducting DC cable low-temperature cooling system addresses the intricate structural design challenges associated with the low-temperature system of a superconducting linear motor. This paper begins by describing the basic structure and operation principle of the motor, and then proceeds to analyse the magnetic circuit of the motor. The impact of secondary structure parameters on motor thrust is investigated through three-dimensional finite element analysis. The operation environment of the superconducting cable is then analysed, and the force of the cable and the magnetic field environment are discussed. The relationship between the maximum thrust of the motor and the secondary parameters, the force on the cable during operation and the optimal thickness of the shield has been established.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
