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Advances in Superconducting Materials for Electric Power Applications
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Advances in Superconducting Materials for Electric Power Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Electronic Materials".

Deadline for manuscript submissions: 20 September 2025 | Viewed by 568

Special Issue Editor

Dr. Xinsheng Yang

E-Mail Website
Guest Editor
Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle, Southwest Jiaotong University, Chengdu 610031, China
Interests: superconductor
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

“Advances in Superconducting Materials for Electric Power Applications” explores the latest developments in the field of superconducting materials and their applications in the electric power industry. Superconductors offer the potential for significantly improving the efficiency and performance of power transmission and distribution systems by reducing energy losses and increasing carrying capacity. This Special Issue focuses on research and innovation in superconducting materials, including high-temperature superconductors and novel materials with enhanced properties. The articles featured in this Issue showcase the progress made in developing superconducting materials for various power applications, such as generators, transformers, fault current limiters, motor, and energy storage devices. By highlighting the advancements in superconducting materials, this Special Issue aims to contribute to the ongoing efforts to revolutionize the electric power sector and create a more sustainable and efficient energy infrastructure.

Dr. Xinsheng Yang
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • superconducting materials
  • electromagnetic simulation
  • electric power applications
  • superconducting motors
  • HTS cables/conductors
  • magnets
  • energy storage devices

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Published Papers (1 paper)

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Research

11 pages, 1773 KiB  
Communication
Current Characteristics of REBCO Tapes in 6-Slot TSTC-CICC Under Bending Conditions
by Li Li, Mingzhen Yang, Songzhen Yuan, Shaotao Dai and Tao Ma
Materials 2025, 18(2), 350; https://doi.org/10.3390/ma18020350 - 14 Jan 2025
Viewed by 386
Abstract
Embedding stacked HTS tapes into twisted slots is one design approach for constructing fusion conductors. This paper adopts a Cable-in-Conduit Conductor (CICC) structure, utilizing commercially REBCO coated conductors. The cable framework is made of copper and features six helically twisted slots filled with [...] Read more.
Embedding stacked HTS tapes into twisted slots is one design approach for constructing fusion conductors. This paper adopts a Cable-in-Conduit Conductor (CICC) structure, utilizing commercially REBCO coated conductors. The cable framework is made of copper and features six helically twisted slots filled with 2G HTS tapes. Two 1 m long samples with twist pitches of 200 mm and 300 mm, respectively, were fabricated. In one slot, copper and superconducting tapes were alternated, while the remaining grooves were filled with copper tapes. The 90 µm thick copper-plated bare tapes provided by Shanghai Superconductor were used for testing. By measuring the critical current of tapes positioned at different locations within the grooves at 77 K, the characteristics of each tape in the stacked arrangement were individually characterized. The study obtained the current degradation patterns of tapes located at different positions within the grooves under various bending radii. This paper will present and discuss the preliminary results of the bending measurements conducted at 77 K under a self-field. Full article
(This article belongs to the Special Issue Advances in Superconducting Materials for Electric Power Applications)
►▼ Show Figures

Figure 1

Figure 1
<p>The figure shows the cross-section of a six-slot TSTC-CICC, where HTS tapes are located in three symmetrically positioned slots, and copper tapes are used to evenly space the tapes. The remaining slots are filled with copper tapes of the same thickness, and the outermost part is fixed by the copper sheath.</p> Full article ">Figure 2
<p>The figure shows a schematic diagram for critical current testing. In the diagram, 1-1′ indicates the position where the current is introduced into the superconducting tape, 2-2′ represents the position where the voltage on the tape is measured, and the rectangular frame is the conductor after bending.</p> Full article ">Figure 3
<p>A three-point bending process was conducted using a pipe bender, gradually reducing the bending radius of the conductor, and the bending radius was determined by measuring the arc length of the bent conductor. After determining the bending radius, the I–V curves of the tapes at different positions were measured.</p> Full article ">Figure 4
<p>Model schematic of the REBCO layer strain during bending in a six-slot TSTC: (<b>a</b>) cross-sectional view of the tape embedded in the groove, using the bottom tape as an example; (<b>b</b>) enlarged view of a segment of the tape after twisting, embedded in the helical groove framework.</p> Full article ">Figure 5
<p>The I–V curves of the tapes at different positions in the groove when the tapes are embedded in the skeleton but in an unbended state.</p> Full article ">Figure 6
<p>I–V curves of tapes within the slot of the 200 mm twist pitch sample under different bending radii.</p> Full article ">Figure 7
<p>I–V curves of tapes within the slot of the 300 mm twist pitch sample under different bending radii.</p> Full article ">Figure 8
<p>The figure shows the analytical calculation results of the axial strain of the outermost tape in the groove under different bending radii.</p> Full article ">Figure 9
<p>The figure shows the axial strain calculation results of the tape at different positions in the groove for a sample with a twist pitch of 300 mm at a bending radius of 90 cm.</p> Full article ">
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