IEEE Transactions on Applied Superconductivity最新文献_第10页

Design and Analysis of Parallel Hybrid-Excited Superconducting Electromagnetic Support System for High-Speed Electromagnetic Suspension Maglev 高速电磁悬浮磁悬浮并行混合激励超导电磁支撑系统的设计与分析

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-06 DOI: 10.1109/TASC.2025.3548585

Deming Huang;Lichao Nie;Chaoqun Jiao;Jin Fang

{"title":"Design and Analysis of Parallel Hybrid-Excited Superconducting Electromagnetic Support System for High-Speed Electromagnetic Suspension Maglev","authors":"Deming Huang;Lichao Nie;Chaoqun Jiao;Jin Fang","doi":"10.1109/TASC.2025.3548585","DOIUrl":"https://doi.org/10.1109/TASC.2025.3548585","url":null,"abstract":"The conventional electromagnetic maglev train is currently the sole commercially operated high-speed maglev train; however, it faces challenges, such as a narrow suspension gap, excessive energy consumption, and heat dissipation issues. High-temperature superconducting materials possess the advantages of zero resistance and high current-carrying capacity. Building upon the conventional high-speed electromagnetic levitation train, this article proposes a parallel hybrid-excited superconducting electromagnetic support system that incorporates both high-temperature superconducting and conventional components. By considering the symmetry of the support arm and electromagnetic field, certain normally conducting electromagnets are replaced with superconducting ones. Utilizing the conventional electromagnetic support system as a basis, we conducted finite-element simulation to establish and analyze the superconducting hybrid electromagnetic support and linear motor traction system. At suspension gaps of 15 and 20 mm, superconducting electromagnets contribute 80% of the suspension force without significant traction loss, while normally conducting electromagnets require smaller currents for system support and traction functions. The suspension gap can be effectively controlled within a certain safe range (15–20 mm) by maintaining a constant current in the electromagnetic coil.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 3","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143667608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advancing Reel-to-Reel Inspection Techniques for Long HTS Conductors: Comparison and Innovations 推进长高温超导导体的卷对卷检测技术：比较与创新

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-06 DOI: 10.1109/TASC.2025.3548629

Siwei Chen;Yi Li;Chirag Goel;Piotr Bunkowski;Jonathan Dye;Lingfeng Zhu;Jian Rong;Yuhu Zhai;Venkat Selvamanickam

{"title":"Advancing Reel-to-Reel Inspection Techniques for Long HTS Conductors: Comparison and Innovations","authors":"Siwei Chen;Yi Li;Chirag Goel;Piotr Bunkowski;Jonathan Dye;Lingfeng Zhu;Jian Rong;Yuhu Zhai;Venkat Selvamanickam","doi":"10.1109/TASC.2025.3548629","DOIUrl":"https://doi.org/10.1109/TASC.2025.3548629","url":null,"abstract":"The continuous advancement of high-temperature superconductor (HTS) technologies has greatly accelerated the development and deployment of HTS applications. Among the critical tools supporting these advancements are reel-to-reel (R2R) critical current (<inline-formula> <tex-math>$I_{c}$</tex-math></inline-formula>) measurement techniques, which are extensively used by both manufacturers and end users to characterize long-length REBCO conductors. These techniques play a vital role in quality assurance and quality control (QA/QC), ensuring the reliability and performance of HTS conductors and applications throughout the production cycle. We have developed a range of in-house devices for R2R measurements at the University of Houston and Princeton Plasma Physics Laboratory. These include one-dimensional (1D) scan using a magnetic circuit (MC) and two-dimensional (2D) magnetic field mapping systems based on scanning probe array microscope (SPAM) or scanning probe microscopy (SPM). Each technique offers distinct advantages: the MC system provides ultra-fast scanning speeds, ideal for rapid inspection in large-scale industrial production; the high-resolution SPM delivers detailed insights for conductor research and development; and the SPAM, with its simpler mechanical setup, can be upgraded for higher field and lower temperature conditions with a balanced 2D resolution. We compared the magnetization and detection capabilities of these techniques through experiments on rare-earth barium copper oxide (REBCO) coated conductor samples, with data analysis supported by numerical simulations. Based on our comprehensive comparative studies, we propose enhancements for each measurement system and provide guidelines for selecting the optimal technique combinations to meet specific application requirements.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143688159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

3D Numerical Studies of a Radial-Type Superconducting Magnetic Bearing Consisting of HTS Coils and PM 由高温超导线圈和永磁材料组成的径向超导磁轴承的三维数值研究

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-06 DOI: 10.1109/TASC.2025.3544616

Qi Xu;Yi Lin;Ruixiang Wang;Changhao Hu;Jianzhao Geng

引用次数: 0

Mechanical Simulation of 2G HTS Tapes and Stacks During Localized Temperature Increase 局域升温过程中2G高温超导带和堆的力学模拟

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-06 DOI: 10.1109/TASC.2025.3548635

Hamed Milanchian;Shahriar Bakrani Balani;Tiina Salmi

{"title":"Mechanical Simulation of 2G HTS Tapes and Stacks During Localized Temperature Increase","authors":"Hamed Milanchian;Shahriar Bakrani Balani;Tiina Salmi","doi":"10.1109/TASC.2025.3548635","DOIUrl":"https://doi.org/10.1109/TASC.2025.3548635","url":null,"abstract":"High-temperature superconductor (HTS) materials have emerged as promising candidates for high-field magnets due to their superior critical current density, temperature, and magnetic fields. During magnet quench, high current density can quickly lead to local temperature increase and temperature gradient that can potentially damage the coil. This paper presents an analysis of the mechanical impact of the large thermal gradients. The study employs 3D finite element method (FEM) simulations to investigate the mechanical responses of second-generation HTS tapes to different hotspot temperature profiles. The focus is on analyzing the axial tape strain, normal stress and the various shear stresses in tape layer interfaces. We consider both single tapes and tape stacks. The normal zone propagation is not simulated, but we examine different end-temperature profiles to identify the critical thermal conditions that may lead to too large strain or stress. The results suggest that induced axial strain can exceed the elastic limit or lead to irreversible critical current reduction. Also, the shear stress computed using the Mohr-Coulomb criterion may reach very high values potentially leading to mixed-mode delamination. Future studies are needed to verify the damage methods after high temperatures and help in determining the maximum safe temperature in magnet design. The results highlight the importance of mechanical boundary conditions in this type of numerical or experimental study.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-6"},"PeriodicalIF":1.7,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10916518","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143654961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of Quench Detection System for High-Temperature Superconducting Magnets for Plasma 等离子体用高温超导磁体猝灭检测系统设计

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-05 DOI: 10.1109/TASC.2025.3533466

Huahui Zhang;Shuangsong Du;Kaizhong Ding;Jiahui Zhu;Chunlong Zou;Yujun Dong;Rui Hu;Lei Li;Feng Jiang;Yunfei Tan;Yanfang Yang;Panpan Chen

引用次数: 0

Experimental Study on Temperature-Controlled Charging Sequence for Reduction of Screening Current Effect in HTS Magnet 降低高温超导磁体屏蔽电流效应的温控充电顺序实验研究

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-04 DOI: 10.1109/TASC.2025.3547814

Hyunsoo Park;Geonyoung Kim;Jaemin Kim;Chaemin Im;Jeonghwan Park;Wooseung Lee;Wonseok Jang;Gaël Berthet;JuKyung Cha;Yufan Yan;Wonju Jung;Seungyong Hahn

{"title":"Experimental Study on Temperature-Controlled Charging Sequence for Reduction of Screening Current Effect in HTS Magnet","authors":"Hyunsoo Park;Geonyoung Kim;Jaemin Kim;Chaemin Im;Jeonghwan Park;Wooseung Lee;Wonseok Jang;Gaël Berthet;JuKyung Cha;Yufan Yan;Wonju Jung;Seungyong Hahn","doi":"10.1109/TASC.2025.3547814","DOIUrl":"https://doi.org/10.1109/TASC.2025.3547814","url":null,"abstract":"High-temperature superconductor (HTS) rare-earth barium copper oxide (REBCO) conductor has been extensively researched and developed for various applications. However, due to the intrinsic properties of REBCO conductors, the screening current occurs and this effect causes induced field and stress in superconducting magnets. Therefore, we investigated a strategy to mitigate the screening current effect in HTS magnets with the simultaneous control of temperature and current. In this paper, we ramped up the coil and measured the magnetic field of the HTS magnet as a references on conduction cooling system within different temperature: 20 K and 50 K. Then, the temperature-controlled charging sequence method with PID control was conducted so that the current ramping up simultaneously started with the magnet cool down: (1) 50 K to 20 K and (2) 80 K to 50 K. Finally, we analyzed the experiment results of the magnetic field distribution compared to reference charging values. These results showed the possibility to develop the operating techniques for high-field REBCO magnets that reduce the screening current induced field.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Current Sharing and Mechanical Properties of Slot-n-Fill REBCO Tapes n-填充型REBCO带的电流共享及力学性能

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-04 DOI: 10.1109/TASC.2025.3547318

Shengchen Xue;Lingfeng Zhu;Jian Rong;Nghia Mai;Yi Li;Siwei Chen;Umesh Sambangi;Jithin Peram;Venkat Selvamanickam

引用次数: 0

Modeling and Simulation of Microwave Kinetic Inductance Detector Readout System Using Simulink and RF Blockset 基于Simulink和RF Blockset的微波动态电感探测器读出系统建模与仿真

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-04 DOI: 10.1109/TASC.2025.3547281

Taehoon Kim

引用次数: 0

Geometry Dependent Superconductive Transition of Nb Nanostructures Nb纳米结构的几何相关超导跃迁

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-03 DOI: 10.1109/TASC.2025.3546930

Ivan De Carlo;Matteo Fretto;Natascia De Leo;Gianluca Milano

{"title":"Geometry Dependent Superconductive Transition of Nb Nanostructures","authors":"Ivan De Carlo;Matteo Fretto;Natascia De Leo;Gianluca Milano","doi":"10.1109/TASC.2025.3546930","DOIUrl":"https://doi.org/10.1109/TASC.2025.3546930","url":null,"abstract":"Recently, superconducting nanostructures gained particular attention due to the visualisation of some intriguing phenomena, such as phase fluctuations, quantum phase slip, shape resonance in critical temperature, allowing the definition of a tailored superconducting nanodevice with the desired superconducting features, quantum phenomena. A deep investigation into the relationship between superconductivity, low dimensionality, quantum phenomena should be performed, in order to explain the emergence mechanism of these effects in nanostructures, how superconductivity is affected. In the following, we report on the investigation of the superconductive transition in triangular-shaped Nb pads connecting a Nb nanostripe. As revealed by <italic>R vs T</i> curves, and the superconductive transition is observed to be characterised by two regions: i) a first smooth and wide transition reflecting the continuous reduction in the width of the Nb triangular pads that progressively experience superconductive transition, and ii) a more abrupt transition reflecting the transition of the Nb nanostripe. This work could pave the way concerning the realisation of Nb nanostructures with tunable critical temperature, transition width, and slope.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143655098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design Study of Fully Superconducting Motor With MgB$_{2}$ Wire and YBCO Bulk Combination for Brushless Operation MgB${2}$导线与YBCO块体组合无刷全超导电机设计研究

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-03 DOI: 10.1109/TASC.2025.3542340

Jaheum Koo;JuKyung Cha;Jonghoon Yoon;Wonseok Jang;Dongwoo Lee;In Gyeong Park;Sang Heon Lee;Seungyong Hahn;Sangjin Lee

{"title":"Design Study of Fully Superconducting Motor With MgB$_{2}$ Wire and YBCO Bulk Combination for Brushless Operation","authors":"Jaheum Koo;JuKyung Cha;Jonghoon Yoon;Wonseok Jang;Dongwoo Lee;In Gyeong Park;Sang Heon Lee;Seungyong Hahn;Sangjin Lee","doi":"10.1109/TASC.2025.3542340","DOIUrl":"https://doi.org/10.1109/TASC.2025.3542340","url":null,"abstract":"In response to increasing environmental regulations and the push towards electrification, superconducting motors have gained significant interest due to their high power density potential. This paper presents the design and analysis of a conceptual fully superconducting brushless motor featuring MgB<inline-formula><tex-math>$_{2}$</tex-math></inline-formula> armature windings and YBCO bulk superconductors in the rotor. The proposed motor utilizes post-assembly magnetization using field cooling, achieving a trapped magnetic field exceeding 2 T. Through optimization and magnetization analysis, the YBCO bulk-type designed motor calculated a 61% improvement in power density compared to a permanent magnet-type designed motor. The design also shows thermal losses of 1.58 kW, which can be effectively covered using LH<inline-formula><tex-math>$_{2}$</tex-math></inline-formula> cooling. These results present the feasibility of a high-performance, brushless design with HTS bulk field magnets, paving the way for relatively compact cryogenic motor applications.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0