Superconductivity最新文献

{"title":"Recent progress in high-temperature superconducting undulators","authors":"Zhuangwei Chen ,&nbsp;Marco Calvi ,&nbsp;John Durrell ,&nbsp;Cristian Boffo ,&nbsp;Dabin Wei ,&nbsp;Kai Zhang ,&nbsp;Zhentang Zhao","doi":"10.1016/j.supcon.2024.100134","DOIUrl":"10.1016/j.supcon.2024.100134","url":null,"abstract":"<div><div>Considerable effort has been devoted to the development of superconducting undulators (SCUs) intended for particle accelerator-based light sources, including synchrotrons and free electron laser (FEL) facilities. Recently, a high-temperature superconducting (HTS) undulator prototype, consisting of staggered-array Re-Ba-Cu–O bulks, achieved an on-axis sinusoidal magnetic field profile with a peak amplitude <em>B</em>₀ of 2.1 T and a period length of 10 mm, resulting in a deflection parameter <em>K</em> = 1.96. Such a short period HTS undulator not only enables the generation of higher-energy photons, but also supports the construction of economically feasible and compact FELs with shorter linear accelerators (LINACs). This article provides a comprehensive review of recent advances in the staggered-array bulk HTS undulator as well as other types of HTS undulators. Furthermore, it offers insights into the development of engineering HTS undulator prototypes designed for deployment in synchrotron and free electron laser (FEL) facilities. We conclude by discussing opportunities for and the challenges facing the use of HTS undulators in practical applications.</div></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"12 ","pages":"Article 100134"},"PeriodicalIF":5.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142758927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Meter-length REBCO ultralow resistance joint for the gigahertz NMR magnet","authors":"Xiaoru Tian ,&nbsp;Hongli Suo ,&nbsp;Zili Zhang ,&nbsp;Maolai Ye ,&nbsp;Lei Wang ,&nbsp;Jianhua Liu ,&nbsp;Qiuliang Wang","doi":"10.1016/j.supcon.2024.100138","DOIUrl":"10.1016/j.supcon.2024.100138","url":null,"abstract":"<div><div>In this paper, we present a meter-length REBCO joint using the most conventional soldering method. The joint resistance can attain 7.21 × 10^-11 Ω at 4.2 K with a joint length of 2 m. It essentially displays a linear relationship with the joint length. The microstructures of the joints were investigated systematically using scanning electron microscopy (SEM) and micro-computed tomography (micro-CT). Multiple voids were identified in all the joints. More importantly, the voids were not distributed homogeneously. The internal voids near the innermost and outermost rings were larger than those in the middle ring. Two types of gigahertz magnetic resonance spectroscopy (NMR) magnets were designed: 15 T low temperature superconductor (LTS) + 15 high temperature superconductor (HTS) and whole HTS. The current 10^-11 Ω-level joint can satisfy the magnetic field decay criterion of 1 ×10^-8/h. However, a pure HTS gigahertz NMR magnet requires a joint length of over 20 m, which is not feasible. The current resistance resource of the meter-length joint was also discussed by an equivalent circuit analysis. This paper presents a reliable engineering REBCO joint fabrication method for gigahertz NMR magnets without heat treatment.</div></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"12 ","pages":"Article 100138"},"PeriodicalIF":5.6,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143160459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Chinese magneto-biased superconducting current limiter has achieved long-term grid-connected demonstration, withstanding transmission line fault","authors":"Jiahui Zhu ,&nbsp;Zhengyu Li ,&nbsp;Jianfeng Sun ,&nbsp;Defu Wei ,&nbsp;Kaizhong Ding","doi":"10.1016/j.supcon.2024.100131","DOIUrl":"10.1016/j.supcon.2024.100131","url":null,"abstract":"","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"12 ","pages":"Article 100131"},"PeriodicalIF":5.6,"publicationDate":"2024-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142707271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical study of the effect of anisotropy and field dependence of critical current on AC loss in REBCO coated conductors and stacks","authors":"Wenhao Li ,&nbsp;Zhenan Jiang ,&nbsp;Difan Zhou ,&nbsp;Chuanbing Cai","doi":"10.1016/j.supcon.2024.100130","DOIUrl":"10.1016/j.supcon.2024.100130","url":null,"abstract":"<div><div>High-temperature superconducting (HTS) AC electrical devices generally carry AC transport currents and are exposed to AC external magnetic fields with arbitrary orientations. Realistic HTS coated conductors (CCs) show diverse critical current anisotropy and field dependence (<em>I</em>_c(<strong><em>B</em></strong>,<span><math><mrow><mi>θ</mi></mrow></math></span>)), which directly affect the superconducting behavior. However, under complex electromagnetic (EM) conditions, the discrepancies in AC loss characteristics caused by different <em>I</em>_c(<strong><em>B</em></strong>,<span><math><mrow><mi>θ</mi></mrow></math></span>) features are still unclear. Moreover, the selection of CCs with desirable <em>I</em>_c(<strong><em>B</em></strong>,<span><math><mrow><mi>θ</mi></mrow></math></span>) features to further reduce AC loss under various EM conditions remains overlooked. In this work, the transport AC loss (<em>Q</em>_t) (without field), magnetization loss (<em>Q</em>_m), and total AC loss (<em>Q</em>_tot) of the nearly isotropic Shanghai Creative (SCST) CC and the strongly anisotropic Fujikura (FYSC) CC, along with their stacks, are investigated in the range of 90° and 90° (parallel to the CC wide surface) field angles based on the <strong><em>H</em></strong>-formulation. The results show that, due to the opposite angular dependence of <em>I</em>_c, the effective penetration fields of these two CCs or stacks exhibit distinct trends with the field angle, and the <em>Q</em>_m in the nearly isotropic CC is less dominated by the perpendicular field component compared to that in the strongly anisotropic CC. Furthermore, due to the different field dependence of <em>I</em>_c at various field angles, the two CCs or stacks exhibit opposite flux flow loss behaviors with the field angle. Overall, the SCST CC and its stack show lower <em>Q</em>_tot within the angle range around 0°, and this range expands as the external field increases, while the FYSC CC and its stack show lower <em>Q</em>_tot at the remaining angles. This is further explained by analyzing the field distribution and <em>Q</em>_tot of each tape in the stacks. This paper clarifies the discrepancies in AC loss caused by different <em>I</em>_c(<strong><em>B</em></strong>,<span><math><mrow><mi>θ</mi></mrow></math></span>) and identifies the applicable EM conditions for different REBCO materials to reduce AC loss, providing valuable references for material selection to minimize loss in HTS AC devices across different scenarios.</div></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"12 ","pages":"Article 100130"},"PeriodicalIF":5.6,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental and numerical study of radial and axial HTS magnetic couplers","authors":"Maxim Osipov,&nbsp;Irina Martirosian,&nbsp;Aleksandr Starikovskii,&nbsp;Dmitrii Aleksandrov,&nbsp;Sergei Pokrovskii","doi":"10.1016/j.supcon.2024.100128","DOIUrl":"10.1016/j.supcon.2024.100128","url":null,"abstract":"<div><div>The paper presents the results of an experimental study and numerical calculations of torques in magnetic couplers of various configurations. A comparison was made for model couplers based on permanent magnets (PMG) and couplers based on high-temperature superconducting (HTS) tapes cooled with liquid nitrogen. In PMG-couplers, both coupler halves are made of permanent magnets, while in HTS-couplers, one coupler half is made of HTS-tapes stacks, and the second of permanent magnets. Both types of couplers are considered in both axial and radial configurations, with different clearances between the coupler halves. The results of experimental studies showed that in the configurations we considered, radial HTS-couplers are superior to their axial analogues in terms of the maximum torque between the coupler halves. In addition, in the considered configurations, PMG couplers exceeded their HTS analogues in torque by 10 times. Numerical finite element calculations using a combined A-T-H formulation were used to optimize the design of the HTS-coupler. The model was verified using the obtained experimental data for moments in model couplers. The model was used to calculate an optimized coupler with added HTS-windings, lower HTS temperature and stronger permanent magnets. The calculation results showed that HTS-couplers can be comparable with their PMG analogues, at the same time they are significantly superior to them in damping external disturbances. Due to the fact that the best characteristics were shown by model radial couplers with minimal gaps between the coupler halves, radial couplers were manufactured based on windings of 10 and 20 layers of HTS-tapes and the torques in them were measured in the FC and ZFC modes. It has been shown that in most operating conditions, 10-layer couplers outperform 20-layer couplers.</div></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"12 ","pages":"Article 100128"},"PeriodicalIF":5.6,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142527654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Critical current density and AC magnetic susceptibility of high-quality FeTe0.5Se0.5 superconducting tapes","authors":"Xin Zhou ,&nbsp;Wenjie Li ,&nbsp;Qiang Hou ,&nbsp;Wei Wei ,&nbsp;Wenhui Liu ,&nbsp;Ke Wang ,&nbsp;Xiangzhuo Xing ,&nbsp;Linfei Liu ,&nbsp;Jun-Yi Ge ,&nbsp;Yanpeng Qi ,&nbsp;Huajun Liu ,&nbsp;Li Ren ,&nbsp;Tsuyoshi Tamegai ,&nbsp;Yue Sun ,&nbsp;Zhixiang Shi","doi":"10.1016/j.supcon.2024.100127","DOIUrl":"10.1016/j.supcon.2024.100127","url":null,"abstract":"<div><div>Iron telluride-selenium superconducting materials, known for their non-toxicity, ease of preparation, simple structure, and high upper critical fields, have attracted much research interest in practical application. In this work, we conducted electrical transport measurements, magneto-optical imaging, and AC magnetic susceptibility measurements on FeTe_0.5Se_0.5 superconducting long tapes fabricated via reel-to-reel pulsed laser deposition. Our transport measurements revealed a high critical current density that remains relatively stable even with increasing external magnetic fields, reaching over 1 × 10⁵ A/cm² at 8 K and 9 T. The calculated pinning force density indicates that normal point pinning is the primary mechanism in these tapes. The magneto-optical images demonstrated that the tapes show homogeneous superconductivity and uniform distribution of critical current density. The AC magnetic susceptibility measurements also confirmed their strong flux pinning nature of withstanding high magnetic field. Based on these characteristics, FeTe_0.5Se_0.5 superconducting tapes show promising prospects for applications under high magnetic field.</div></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"12 ","pages":"Article 100127"},"PeriodicalIF":5.6,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142527653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High performance rapid single-flux-quantum bit-slice arithmetic logic unit","authors":"Jing Ren ,&nbsp;Pei-Yao Qu ,&nbsp;Jia-Hong Yang ,&nbsp;Xiang-Yu Zheng ,&nbsp;Hui Zhang ,&nbsp;Jie Ren ,&nbsp;Guang-Ming Tang","doi":"10.1016/j.supcon.2024.100116","DOIUrl":"10.1016/j.supcon.2024.100116","url":null,"abstract":"<div><p>Two optimization technologies, namely, bypass and carry-control optimization, were demonstrated for enhancing the performance of a bit-slice Arithmetic Logic Unit (ALU) in 2^<em>n</em>-bit Rapid Single-Flux-Quantum (RSFQ) microprocessors. These technologies can not only shorten the calculation time but also solve data hazards. Among them, the proposed bypass technology is applicable to any 2^<em>n</em>-bit ALU, whether it is bit-serial, bit-slice or bit-parallel. The high performance bit-slice ALU was implemented using the 6 <em>k</em>A/cm² Nb/AlO_<em>x</em>/Nb junction fabrication process from Superconducting Electronics Facility of Shanghai Institute of Microsystem and Information Technology. It consists of 1693 Josephson junctions with an area of 2.46 <span><math><mrow><mo>×</mo></mrow></math></span> 0.81 mm². All ALU operations of the MIPS32 instruction set are implemented, including two extended instructions, i.e., addition with carry (ADDC) and subtraction with borrow (SUBB). All the ALU operations were successfully obtained in SFQ testing based on OCTOPUX and the measured DC bias current margin can reach 86<span><math><mrow><mo>%</mo></mrow></math></span> - 104<span><math><mrow><mo>%</mo></mrow></math></span>. The ALU achieves a 100<span><math><mrow><mo>%</mo></mrow></math></span> utilization rate, regardless of carry/borrow read-after-write correlations between instructions.</p></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"11 ","pages":"Article 100116"},"PeriodicalIF":5.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772830724000334/pdfft?md5=96f792fb9935383fe687678b7f003e24&pid=1-s2.0-S2772830724000334-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142172154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Numerical simulation of dynamic loss and total loss in the REBCO tapes under perpendicular AC magnetic fields up to 8 T at 20 K and 50 K","authors":"Yuhui Zhang,&nbsp;Yueming Sun,&nbsp;Nicholas M Strickland,&nbsp;Zhenan Jiang","doi":"10.1016/j.supcon.2024.100117","DOIUrl":"10.1016/j.supcon.2024.100117","url":null,"abstract":"<div><p>REBCO tapes carry DC current under AC magnetic fields in proposed HTS fusion applications. AC loss will be generated in the process and it is important to understand the AC loss behaviour for safe operation of the fusion magnets. In this work, magnetisation loss (<em>Q</em>_m), dynamic resistance (<em>R</em>_dyn), and total loss (<em>Q</em>_total) in four different REBCO tapes are numerically studied, using the measured <span><math><mrow><msub><mi>J</mi><mi>c</mi></msub><mrow><mfenced><mrow><mi>B</mi><mo>,</mo><mi>θ</mi></mrow></mfenced></mrow></mrow></math></span> and <span><math><mrow><mi>n</mi><mrow><mfenced><mrow><mi>B</mi><mo>,</mo><mi>θ</mi></mrow></mfenced></mrow></mrow></math></span>, for the magnetic field amplitude applied perpendicularly up to 8 T at 20 K and 50 K, where <span><math><mrow><msub><mi>J</mi><mi>c</mi></msub><mrow><mfenced><mrow><mi>B</mi><mo>,</mo><mi>θ</mi></mrow></mfenced></mrow></mrow></math></span> represents the magnetic field and field angle (<span><math><mrow><mi>θ</mi></mrow></math></span>) dependent critical current density. The peak of Theva <span><math><mrow><msub><mi>J</mi><mi>c</mi></msub><mrow><mfenced><mrow><mi>B</mi><mo>,</mo><mi>θ</mi></mrow></mfenced></mrow></mrow></math></span> data is different from that of other tapes. We artificially shifted the <em>ab</em>-plane peak of Theva <span><math><mrow><msub><mi>J</mi><mi>c</mi></msub><mrow><mfenced><mrow><mi>B</mi><mo>,</mo><mi>θ</mi></mrow></mfenced></mrow></mrow></math></span> to the left by 25° to match the peak value. The newly shifted data is named as Theva-shift, which was also investigated to study the influence of the Theva peak shift on AC loss. The normalised DC transport current level (<em>i</em> = <em>I</em>_t/<em>I</em>_c0) ranges from 0.05 to 0.9, where the DC current amplitude and the self-critical current of the tape are represented by <em>I</em>_t and <em>I</em>_c0, respectively. The simulation results show that the AC losses deviate significantly from the Brandt-Indenbom (BI) equation at high magnetic fields. <em>J</em>_c and instantaneous loss curves for different tapes show correlation at high magnetic fields. The simulation results also show how different <span><math><mrow><msub><mi>J</mi><mi>c</mi></msub><mrow><mfenced><mrow><mi>B</mi><mo>,</mo><mi>θ</mi></mrow></mfenced></mrow></mrow></math></span> characteristics for different tapes influence AC losses. When AC loss values are scaled by the self-field critical current, <em>Q</em>_m without current and <em>Q</em>_total with current in the different tapes show a good agreement. It implies that the temperature dependence of the two types of loss can be calculated from a known loss at one temperature and the self-field critical current.</p></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"11 ","pages":"Article 100117"},"PeriodicalIF":5.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772830724000346/pdfft?md5=88c2ad712a21095c2e0acbd832e9eeda&pid=1-s2.0-S2772830724000346-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142229056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimisation of pulsed laser deposited Ba1-xKxBiO3 thin films with tunable superconducting properties by control of K doping level, x","authors":"A. Kursumovic ,&nbsp;J. Prestigiacomo ,&nbsp;M. de h-Óra ,&nbsp;W. Li ,&nbsp;J. Feighan ,&nbsp;V. Smolyaninova ,&nbsp;I. Smolyaninov ,&nbsp;M. Osofsky ,&nbsp;J.L. MacManus-Driscoll","doi":"10.1016/j.supcon.2024.100115","DOIUrl":"10.1016/j.supcon.2024.100115","url":null,"abstract":"<div><p>The mid-<em>T</em>_C superconductor Ba_1-XK_XBiO₃ (BKBO) exhibits different superconducting mechanisms depending on x, in the range ∼ 0.35–0.65. The optimal doping for the highest <em>T</em>_C is reported to be around x  = 0.4. To understand more about the dependence of the superconducting mechanism on x, high quality and reproducible epitaxial films with controlled x are needed. This has been challenging owing to the volatility of K and (to a lesser extent) Bi. In this work, we use pulsed laser deposition (PLD) with several novel process steps to achieve high-quality films in a reproducible way. These include a modified method for target preparation, a low NO₂ growth pressure, and precise positioning of substrates in the PLD plume. Optimum <em>T</em>_C films (32 K onset) were grown from an x  = 0.4 target, i.e. with no excess K, as is normally used. Stable, higher K content films (made from an x = 0.45 target), were also grown. These x = 0.45 films had a lower <em>T</em>_C (22.5 K onset), as expected for (K) overdoped films, with very high upper critical field, <em>H</em>_C2 (0 K), and irreversibility field, <em>H</em>_irr (0 K), values, from linear extrapolation, of ∼ 31.7 T and ∼ 28.8 T, respectively. The growth methodology demonstrated in this work is highly beneficial for fundamental mechanistic studies of this complex superconductor on which there is renewed interest, and where controlled compositions and crystalline quality are currently limited.</p></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"11 ","pages":"Article 100115"},"PeriodicalIF":5.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772830724000322/pdfft?md5=6e44af9fc754192ef1aabc09fd102f6e&pid=1-s2.0-S2772830724000322-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142148837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancements in dynamic characteristics analysis of superconducting electrodynamic suspension systems: Modeling, experiment, and optimization","authors":"Huan Huang ,&nbsp;Haitao Li ,&nbsp;Tim Coombs ,&nbsp;Hanlin Zhu ,&nbsp;Yougang Sun ,&nbsp;Guobin Lin ,&nbsp;Junqi Xu ,&nbsp;Jun Zheng","doi":"10.1016/j.supcon.2024.100114","DOIUrl":"10.1016/j.supcon.2024.100114","url":null,"abstract":"<div><p>Superconducting electrodynamic suspension (EDS) presents numerous advantages, including large suspension gaps, high lift-to-drag ratios, and lower requirements for track irregularities. Recent advancements in superconducting materials have further enhanced the feasibility of this technology, and hence multiple research institutions are actively developing and improving this high-speed rail technology. Superconducting EDS achieves passive suspension and guidance by the interaction between ground null-flux coils and onboard superconducting magnets, forming an electromechanical coupled system. Thus, electromechanical coupling modeling and equivalent experimental methods are essential in evaluating and optimizing this system. This article reviews the research on dynamic characteristics analysis of superconducting EDS, focusing on modeling and experimental methods. Firstly, it revisits the development history of superconducting EDS and the new opportunities brought by advancements in superconducting materials. Secondly, it discusses various modeling approaches for the suspension system, emphasizing their benefits and limitations. Thirdly, it describes equivalent experimental methods and their respective application scenarios. Then, it reviews important conclusions and possible optimization methods related to dynamic performance and electromechanical coupling research. Additionally, the sliding window method is introduced to improve computational efficiency in vehicle dynamics modeling. This article provides insights into the current state and future directions of superconducting EDS research, serving as a valuable reference for researchers and engineers.</p></div>","PeriodicalId":101185,"journal":{"name":"Superconductivity","volume":"11 ","pages":"Article 100114"},"PeriodicalIF":5.6,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772830724000310/pdfft?md5=46adfaf16db0cf7aa63b9000768c6fbc&pid=1-s2.0-S2772830724000310-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142148836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}