IEEE Transactions on Applied Superconductivity最新文献_第2页

IEEE Transactions on Applied Superconductivity Subject Categories for Article Numbering Information 用于物品编号信息的应用超导主题分类

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-04-28 DOI: 10.1109/TASC.2025.3554421

引用次数: 0

IEEE Transactions on Applied Superconductivity Information for Authors IEEE应用超导信息汇刊

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-04-28 DOI: 10.1109/TASC.2025.3554417

引用次数: 0

A Fast Numerical Approach Toward AC Loss and Critical Current of Large-Scale Stacked Cables 大型堆叠电缆交流损耗和临界电流的快速数值计算方法

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-04-24 DOI: 10.1109/TASC.2025.3564049

Xiang Dai;Xiao-Fen Li

{"title":"A Fast Numerical Approach Toward AC Loss and Critical Current of Large-Scale Stacked Cables","authors":"Xiang Dai;Xiao-Fen Li","doi":"10.1109/TASC.2025.3564049","DOIUrl":"https://doi.org/10.1109/TASC.2025.3564049","url":null,"abstract":"Evaluating ac loss and critical current of large-scale high-temperature superconducting cables is one of the fundamental studies toward fusion magnet applications. In this article, a new and fast numerical method is proposed for the calculation of ac loss of large-scale stacked cables. The model consists of the <inline-formula><tex-math>$J$</tex-math></inline-formula> integral formulation and the fast multipole method (FMM). Compared to the <inline-formula><tex-math>$T$</tex-math></inline-formula> integral formulation, the <inline-formula><tex-math>$J$</tex-math></inline-formula> integral formulation exhibits better nonlinear convergence. Meanwhile, the FMM successfully reduces the storage and computational complexity of dense matrices from <inline-formula><tex-math>$O(N^{2})$</tex-math></inline-formula> to <inline-formula><tex-math>$O(N)$</tex-math></inline-formula>. This article compares the computational performance of three models through the analysis of the ac loss of a Rutherford cable consisting of ten quasi-isotropic strands. The models considered are the <inline-formula><tex-math>$T$</tex-math></inline-formula>-<inline-formula><tex-math>$A$</tex-math></inline-formula> formulation, the <inline-formula><tex-math>$J$</tex-math></inline-formula> integral formulation without FMM, and the <inline-formula><tex-math>$J$</tex-math></inline-formula> integral formulation with FMM. The results show that the computational performance of the <inline-formula><tex-math>$J$</tex-math></inline-formula> integral formulation with the FMM is significantly better than that of both the <inline-formula><tex-math>$T$</tex-math></inline-formula>-<inline-formula><tex-math>$A$</tex-math></inline-formula> formulation and the <inline-formula><tex-math>$J$</tex-math></inline-formula> integral formulation without FMM. Furthermore, this model can also be used for the evaluation of the critical current of the Rutherford cable.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 4","pages":"1-8"},"PeriodicalIF":1.7,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143913417","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

An Analytical Methodology to Dimension Self-Supporting Structures in Cos-Theta Superconducting Accelerator Magnets Cos-Theta超导加速器磁体自支撑结构尺寸的分析方法

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-04-24 DOI: 10.1109/TASC.2025.3564128

Jesús Ángel García-Matos;Fernando Toral;Daniel Gavela

{"title":"An Analytical Methodology to Dimension Self-Supporting Structures in Cos-Theta Superconducting Accelerator Magnets","authors":"Jesús Ángel García-Matos;Fernando Toral;Daniel Gavela","doi":"10.1109/TASC.2025.3564128","DOIUrl":"https://doi.org/10.1109/TASC.2025.3564128","url":null,"abstract":"Analytical approaches for dimensioning self-supporting structures in cos-theta superconducting magnets are notably scarce in the literature, despite their interest. The dimensions of these structures influence both material costs and the spacing between the coils and the iron yoke, a parameter that can significantly impact the efficiency of the superconductor depending on the design. Therefore, an analytical methodology is proposed here to dimension the self-supporting structures of cos-theta magnets, usually collar-based, by limiting the radial deformation caused by their electromagnetic forces. This approach could enable a more efficient conceptual design phase, as well as the assessment of existing simulation models. The main goal of this article is to present the core concepts of this methodology and apply them to some examples to evaluate its potential. First, the dimensioning of a standalone dipole serves as a case guide, and then the methodology is tested on the well-known design of the Tevatron. Finally, it is applied to the particularly difficult case that sparked its development: the MCBXF orbit correctors required for the high luminosity large hadron collider (HL-LHC) upgrade. In these magnets, the nested configuration implies a challenging coupling between magnetic and mechanical designs, and the simulation results provide a valuable basis for comparison with the analytical calculations.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 4","pages":"1-12"},"PeriodicalIF":1.7,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090695","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

Development of the Superlink HTS Cable System for Implementation in Munich 在慕尼黑实施的Superlink HTS电缆系统的开发

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-04-23 DOI: 10.1109/TASC.2025.3553829

D. Willén;M. Sedén;M. Pitzer;V. Roudriges-Zermeno;C. Thidemann;J. Kunert;D. D. Tjahjanto;C. Frohne;O. Holte;C. Wolff;W. Prusseit;C. Hintze;R. Bach;P. Mansheim;W. T. B. de Sousa;M. Noe;A. Alekseev;P. Michalek;R. Prinz

{"title":"Development of the Superlink HTS Cable System for Implementation in Munich","authors":"D. Willén;M. Sedén;M. Pitzer;V. Roudriges-Zermeno;C. Thidemann;J. Kunert;D. D. Tjahjanto;C. Frohne;O. Holte;C. Wolff;W. Prusseit;C. Hintze;R. Bach;P. Mansheim;W. T. B. de Sousa;M. Noe;A. Alekseev;P. Michalek;R. Prinz","doi":"10.1109/TASC.2025.3553829","DOIUrl":"https://doi.org/10.1109/TASC.2025.3553829","url":null,"abstract":"The SuperLink Project develops, since 2020, a superconducting HTS cable technology suitable for the transmission of 500 MVA at the 110 kV level in the network of Stadtwerke München (SWM). A system consisting of a cable cryostat, the superconducting cable, joints, splitterboxes, terminations and a separate return line for the coolant has been developed and tested according to the specifications of the user and project coordinator SWM. It uses high-performing HTS wires, a fully polymeric cryogenic dielectric with low dielectric losses and a novel former concept compensating the thermal contraction. These components have been tested individually and together according to the test standard IEC 63075 and will be operated in the 150 m demonstrator of the project in the network of SWM. Due to limited availability of space in big-city environments, one utility requirement is to minimize the number of cooling stations along the length of a 15 km circuit in Munich. This demands very low loss-levels for the cable and cryostat and has required the development of novel cooling architectures and advanced electrical-, thermal- and hydraulic- modelling tools. Some of the modeling methods and key measured results are presented in this article.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-8"},"PeriodicalIF":1.7,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865333","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

Measurement of AC Loss of Double-Layer Shielded YBCO Cable Model With Different Voltage Leads 不同电压引线双层屏蔽YBCO电缆交流损耗的测量

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-04-23 DOI: 10.1109/TASC.2025.3563891

Hailu Zhai;Yonghu Ma;Zhuyong Li

{"title":"Measurement of AC Loss of Double-Layer Shielded YBCO Cable Model With Different Voltage Leads","authors":"Hailu Zhai;Yonghu Ma;Zhuyong Li","doi":"10.1109/TASC.2025.3563891","DOIUrl":"https://doi.org/10.1109/TASC.2025.3563891","url":null,"abstract":"In this article, a model of double-layer shielded YBCO cable is measured and analyzed by six different voltage leads. Under the current distribution of different layers, the loss characteristics measured by VO-lead, S-lead, and CO-lead are studied, respectively, and the relationship between the losses measured by different voltage leads is demonstrated. The experimental results show that the loss measured by S-lead is very small compared with the loss measured by VO-lead in the YBCO cable model, especially in go–return mode. The loss of the outer shield varies with the change of the magnetic field’s magnitude and direction, while the loss of the inner conductor is basically not affected by the magnetic field of the shield. Under the two current transportation modes, the loss of the CO-lead is the addition or subtraction of the S-lead and VO-lead. The loss in go–go mode is obviously bigger than that in go–return mode, which is due to the different direction of magnetic field produced by the conductor and shield. In addition, the comparative analysis with the BSCCO cable model more fully illustrates the ac loss characteristics of the double-layer wire shielded YBCO cable model. The YBCO wire has obvious advantages in reducing the ac loss of high-temperature superconducting cables.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 6","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144281303","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, Construction, and Operational Testing of Dry-Wound Conduction-Cooled React-and-Wind MgB$_{2}$ Magnet 干绕式传导冷却反应-风力磁体的设计、建造和运行测试

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-04-21 DOI: 10.1109/TASC.2025.3560228

Wonseok Jang;Jaemin Kim;Geonyoung Kim;Chaemin Im;Seyong Choi;Jung Ho Kim;Jun Hyuk Choi;Dong Gun Lee;Seungyong Hahn;Sangjin Lee

{"title":"Design, Construction, and Operational Testing of Dry-Wound Conduction-Cooled React-and-Wind MgB$_{2}$ Magnet","authors":"Wonseok Jang;Jaemin Kim;Geonyoung Kim;Chaemin Im;Seyong Choi;Jung Ho Kim;Jun Hyuk Choi;Dong Gun Lee;Seungyong Hahn;Sangjin Lee","doi":"10.1109/TASC.2025.3560228","DOIUrl":"https://doi.org/10.1109/TASC.2025.3560228","url":null,"abstract":"This study details the design, construction, and operational testing of a dry-wound conduction-cooled react-and-wind MgB<inline-formula><tex-math>$_{2}$</tex-math></inline-formula> magnet. A turn-coloring method was employed for the precise dry winding of round wire, ensuring the winding was completed as per design specifications. Mechanically and thermally stable copper ring-shaped current lead structures with solder-filled helical grooved path were developed for the reacted wire. Following the cryogen-free cooling setup, the magnet was charged, resulting in a quench event at a current lower than the designed operating level. Analysis suggests that an unexpected heat source within the coil winding, combined with the absence of a pre-load structure that resulted in insufficient conduction cooling paths, led to localized heat accumulation and a subsequent quench. These findings highlight the need for improvements in magnet design and manufacturing, particularly in incorporating a coil pre-load structure to enhance thermal management and ensure the long-term reliability of conduction-cooled MgB<inline-formula><tex-math>$_{2}$</tex-math></inline-formula> magnets.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143925149","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

A Novel Power Conversion System for SMES in Pulsed Power Applications 一种用于中小企业脉冲功率应用的新型功率转换系统

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-04-17 DOI: 10.1109/TASC.2025.3561733

A. Bhardwaj;J. Moon;D. N. Nguyen;S. V. Pamidi

引用次数: 0

JSNPE: A Digital Superconducting Spiking Neural Processing Element

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-04-16 DOI: 10.1109/TASC.2025.3561667

Huilong Jiang;Zhongqi Wang;Junying Huang;Gang Chen;Zhimin Zhang;Xiaochun Ye;Dongrui Fan;Lixing You

{"title":"JSNPE: A Digital Superconducting Spiking Neural Processing Element","authors":"Huilong Jiang;Zhongqi Wang;Junying Huang;Gang Chen;Zhimin Zhang;Xiaochun Ye;Dongrui Fan;Lixing You","doi":"10.1109/TASC.2025.3561667","DOIUrl":"https://doi.org/10.1109/TASC.2025.3561667","url":null,"abstract":"Superconducting electronic devices are considered a compelling candidate for designing neuromorphic hardware due to their similar behavioral characteristics. Previous works have shown high potential for applying them to design spiking neural networks. However, convincing schemes remain lacking. This article proposes a Josephson junction (JJ)–based spiking neural processing element, JSNPE, a digital scheme composed of a neural and synaptic module. The neuron is a concise quasidigital circuit with three JJs. It operates asynchronously and realizes the integrate-and-fire model. The synapse is a digital circuit constructed with superconducting rapid single flux quantum devices. Compared to previous designs, JSNPE facilitates network scalability, exhibits higher computational resolution, and enables easier weight configuration. To validate the design, we conducted inference tasks on the IRIS and MNIST datasets using WRspice simulation, with inference parameters obtained through software-based training. The analysis indicates that the inference network can achieve a classification accuracy of 96.7% on IRIS, while for MNIST, the classification accuracy for digit “0” reached 94%. We also evaluated the performance and energy efficiency of JSNPE, demonstrating that JSNPE could achieve significant improvements in both metrics compared to complementary metal oxide semiconductor designs.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 4","pages":"1-12"},"PeriodicalIF":1.7,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143943951","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

AC Loss Calculation of High Temperature Superconducting Coils Based on a Surrogate Model 基于代理模型的高温超导线圈交流损耗计算

IF 1.7 3区物理与天体物理

IEEE Transactions on Applied Superconductivity Pub Date : 2025-04-16 DOI: 10.1109/TASC.2025.3561097

Linjie Zhou;Yihan Wang;Qi Yuan;Xiaowei Song;Liang Li;Qiuliang Wang

引用次数: 0