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Integrated multi-scale approach combining global homogenization and local refinement for multi-field analysis of high-temperature superconducting composite magnets
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作者 Hanxiao GUO Peifeng GAO Xingzhe WANG 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI CSCD 2024年第5期747-762,共16页
Second-generation high-temperature superconducting(HTS)conductors,specifically rare earth-barium-copper-oxide(REBCO)coated conductor(CC)tapes,are promising candidates for high-energy and high-field superconducting app... Second-generation high-temperature superconducting(HTS)conductors,specifically rare earth-barium-copper-oxide(REBCO)coated conductor(CC)tapes,are promising candidates for high-energy and high-field superconducting applications.With respect to epoxy-impregnated REBCO composite magnets that comprise multilayer components,the thermomechanical characteristics of each component differ considerably under extremely low temperatures and strong electromagnetic fields.Traditional numerical models include homogenized orthotropic models,which simplify overall field calculation but miss detailed multi-physics aspects,and full refinement(FR)ones that are thorough but computationally demanding.Herein,we propose an extended multi-scale approach for analyzing the multi-field characteristics of an epoxy-impregnated composite magnet assembled by HTS pancake coils.This approach combines a global homogenization(GH)scheme based on the homogenized electromagnetic T-A model,a method for solving Maxwell's equations for superconducting materials based on the current vector potential T and the magnetic field vector potential A,and a homogenized orthotropic thermoelastic model to assess the electromagnetic and thermoelastic properties at the macroscopic scale.We then identify“dangerous regions”at the macroscopic scale and obtain finer details using a local refinement(LR)scheme to capture the responses of each component material in the HTS composite tapes at the mesoscopic scale.The results of the present GH-LR multi-scale approach agree well with those of the FR scheme and the experimental data in the literature,indicating that the present approach is accurate and efficient.The proposed GH-LR multi-scale approach can serve as a valuable tool for evaluating the risk of failure in large-scale HTS composite magnets. 展开更多
关键词 epoxy-impregnated high-temperature superconducting(hts)magnet multi-scale method global homogenization(GH) local refinement(LR) multi-field analysis
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Study of High-Temperature Superconductor Diplexers for Satellite Communications 被引量:1
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作者 刘娟秀 羊恺 +3 位作者 罗正祥 补世荣 宁俊松 张天良 《Journal of Electronic Science and Technology of China》 2005年第3期260-263,共4页
The high-temperature superconductor (HTSC) resonator and diplexer are simulated by full-wave tools. A newly developed miniature HTSC diplexer is designed and fabricated on double sided YBa2Cu3O7 (YBCO) film (YBCO... The high-temperature superconductor (HTSC) resonator and diplexer are simulated by full-wave tools. A newly developed miniature HTSC diplexer is designed and fabricated on double sided YBa2Cu3O7 (YBCO) film (YBCO/LaAlO3/YBCO), the thickness of which is 400 nm for YBCO and 0.5 mm for the LaAlO3. The measured results show a good agreement with the simulation. The volume and mass of the diplexers are greatly reduced by miniaturized configuration. 展开更多
关键词 high-temperature superconductor MICROWAVE DIPLEXER satellite communication
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Comparative Study of 10-MW High-Temperature Superconductor Wind Generator with Overlapped Field Coil Arrangement
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作者 Zai-Qiang Jiang Jiang-Ping Hu 《Journal of Electronic Science and Technology》 CAS CSCD 2020年第4期358-366,共9页
The electromagnetic characteristics and iron loss of a high-temperature superconductor wind generator(HWG)equipped with an overlapped field coil arrangement(OFCA)are studied by comparing with the one equipped with the... The electromagnetic characteristics and iron loss of a high-temperature superconductor wind generator(HWG)equipped with an overlapped field coil arrangement(OFCA)are studied by comparing with the one equipped with the conventional field coil arrangement(CFCA).Through a quantitative analysis,it was found that HWG with OFCA exhibits better electromagnetic characteristics than HWG with CFCA and can reduce the iron loss by eliminating the magnetic flux sag caused by the adjacent field coil sides with the same current flow direction.In addition,the OFCA topology can further reduce the volume of the wind generator. 展开更多
关键词 high-temperature superconductor(hts)field coil iron loss magnetic flux sag optimization superconducting wind generator
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Angular dependence of vertical force and torque when magnetic dipole moves vertically above flat high-temperature superconductor
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作者 Yong Yang Shuai-Jie Yang +1 位作者 Wen-Li Yang Yun-Yi Wu 《Chinese Physics B》 SCIE EI CAS CSCD 2021年第12期571-576,共6页
The interaction between a permanent magnet(PM)assumed as a magnetic dipole and a flat high-temperature superconductor(HTS)is calculated by the advanced frozen-image model.When the dipole vertically moves above the sem... The interaction between a permanent magnet(PM)assumed as a magnetic dipole and a flat high-temperature superconductor(HTS)is calculated by the advanced frozen-image model.When the dipole vertically moves above the semiinfinite HTS,the general analytical expression of vertical force and that of torque are obtained for an arbitrary angle between the magnetization direction of the PM and the c axis of the HTS.The variations of the force and torque are analyzed for angle and vertical movements in both zero-field cooling(ZFC)condition and field cooling(FC)condition.It is found that the maximum vertical repulsive or attractive force has the positive or negative cosine relation with the angle.However,the maximum torque has the positive or negative sine relation.From the viewpoint of the rotational equilibrium,the orientation of the magnetic dipole with zero angle is deemed to be an unstable equilibrium point in ZFC,but the same orientation is considered as a stable equilibrium point in FC.In addition,both of the variation cycles of the maximum force and torque with the angle areπ. 展开更多
关键词 high-temperature superconductor magnetic dipole frozen-image model angle
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Lateral magnetic stiffness under different parameters in a high-temperature superconductor levitation system
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作者 Yong Yang Yun-Yi Wu 《Chinese Physics B》 SCIE EI CAS CSCD 2021年第7期515-525,共11页
Magnetic stiffness determines the stability of a high-temperature superconductor(HTS)magnetic levitation system.The quantitative properties of the physical and geometrical parameters that affect the stiffness of HTS l... Magnetic stiffness determines the stability of a high-temperature superconductor(HTS)magnetic levitation system.The quantitative properties of the physical and geometrical parameters that affect the stiffness of HTS levitation systems should be identified for improving the stiffness by some effective methods.The magnetic stiffness is directly related to the first-order derivative of the magnetic force with respect to the corresponding displacement,which indicates that the effects of the parameters on the stiffness should be different from the relationships between the forces and the same parameters.In this paper,we study the influences of some physical and geometrical parameters,including the strength of the external magnetic field(B0)produced by a rectangular permanent magnet(PM),critical current density(Jc),the PM-to-HTS area ratio(α),and thickness ratio(β),on the lateral stiffness by using a numerical approach under zero-field cooling(ZFC)and field cooling(FC)conditions.In the first and second passes of the PM,the lateral stiffness at most of lateral positions essentially increases with B0 increasing and decreases withβincreasing in ZFC and FC.The largest lateral stiffness at every lateral position is almost produced by the minimum value of Jc,which is obviously different from the lateral force–Jc relation.Theα-dependent lateral stiffness changes with some parameters,which include the cooling conditions of the bulk HTS,lateral displacement,and movement history of the PM.These findings can provide some suggestions for improving the lateral stiffness of the HTS levitation system. 展开更多
关键词 high-temperature superconductor magnetic levitation lateral stiffness lateral force
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Magnetic levitation performance of high-temperature superconductor over three magnetic hills of permanent magnet guideway with iron shims of different thicknesses
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作者 Yuming Gong Gang Liang +3 位作者 Lifeng Zhao Yong Zhang Yong Zhao Xuyong Chen 《Journal of Modern Transportation》 2014年第3期187-193,共7页
Superconducting magnetic levitation performance, including levitation force and guidance force, is important for the application of high-temperature super- conducting maglev. Both of them are not only affected by diff... Superconducting magnetic levitation performance, including levitation force and guidance force, is important for the application of high-temperature super- conducting maglev. Both of them are not only affected by different arrays of superconductors and magnets, but also by the thickness of the iron shim between permanent magnets. In order to obtain the best levitation performance, the magnetic field distribution, levitation force, and guidance force of a new type of three magnetic hills of permanent magnet guideway with iron shim of different thicknesses (4, 6, and 8 mm) are discussed in this paper. Simulation analysis and experiment results show that the guideway with iron shim of 8 mm thickness possesses the strongest magnetic field and levitation performance when the suspension gap is larger than 10 mm. However, with the decreasing of suspension gap, the guideway with iron shim of 4 mm thickness possesses the best levitation performance. The phenomena can be attributed to the density distribution of flux and magnetization of iron shim. 展开更多
关键词 high-temperature superconductor Three magnetic hills of permanent magnet guideway Thickness of iron shim Levitation force Guidance force
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各向异性衬底上的高温超导(HTS)微带天线
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作者 刘淑芳 官伯然 《微波学报》 CSCD 北大核心 2005年第4期37-39,42,共4页
分析了各向异性衬底上的高温超导微带天线特性。选取两种典型的高温超导各向异性介质———GaNdA lO3和SrLaA lO4作为高温超导微带天线的衬底,采用各向异性媒质中的谱域矩量法,对微带天线的输入阻抗和辐射效率进行了计算。计算和分析结... 分析了各向异性衬底上的高温超导微带天线特性。选取两种典型的高温超导各向异性介质———GaNdA lO3和SrLaA lO4作为高温超导微带天线的衬底,采用各向异性媒质中的谱域矩量法,对微带天线的输入阻抗和辐射效率进行了计算。计算和分析结果表明,高温超导衬底的各向异性特性会影响高温超导微带天线的性能,而且这种影响因衬底而异,同时,衬底特性随温度的变化也将影响天线的性能。 展开更多
关键词 各向异性衬底 高温超导 微带天线 各向异性介质 衬底 各向异性媒质 天线特性 辐射效率 输入阻抗 分析结果
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Effect of high-temperature buffer thickness on quality of AlN epilayer grown on sapphire substrate by metalorganic chemical vapor deposition 被引量:1
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作者 刘波 张森 +4 位作者 尹甲运 张雄文 敦少博 冯志红 蔡树军 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第5期449-452,共4页
The effect of an initially grown high-temperature A1N buffer (HT-A1N) layer's thickness on the quality of an A1N epilayer grown on sapphire substrate by metalorganic chemical vapor deposition (MOCVD) in a two-ste... The effect of an initially grown high-temperature A1N buffer (HT-A1N) layer's thickness on the quality of an A1N epilayer grown on sapphire substrate by metalorganic chemical vapor deposition (MOCVD) in a two-step growth process is investigated. The characteristics of A1N epilayers are analyzed by using triple-axis crystal X-ray diffraction (XRD) and atomic force microscopy (AFM). It is shown that the crystal quality of the A1N epilayer is closely related to its correlation length. The correlation length is determined by the thickness of the initially grown HT-A1N buffer layer. We find that the optimal HT-A1N buffer thickness for obtaining a high-quality A1N epilayer grown on sapphire substrate is about 20 nm. 展开更多
关键词 AIN epilayer high-temperature ht buffer atomic force microscopy (AFM) DISLOCATION
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LabVIEW and PCI DAQ Card Based HTS Test and Control Platforms 被引量:2
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作者 Hui-Bin Zhao Jian-Xun Jin Pu-Chun Jiang Wen-Hui Gao Zi-Lu Liang 《Journal of Electronic Science and Technology of China》 2008年第2期198-204,共7页
This paper introduces the relevant parameters and related characteristics of the LabVIEW and PCI6221 data acquisition (DAQ) card, describes in detail the approach of building the measure and control platform of virt... This paper introduces the relevant parameters and related characteristics of the LabVIEW and PCI6221 data acquisition (DAQ) card, describes in detail the approach of building the measure and control platform of virtual instrument (VI) using LabVIEW and PCI6221, specifically discusses the system's application in high temperature superconductor (HTS) research including the test of HTS volt-ampere characteristics and the HTS magnetic energy storage. The experiments prove that the VI test and control system is easy to build and convenient to use. 展开更多
关键词 Data acquisition (DAQ) high temperature superconductor hts) hts device htsI-V measurement virtual instrument (VI).
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Vibration characteristics of a multi-block high-temperature superconducting maglev system 被引量:1
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作者 Zhifang FU Lifeng ZHAO Xing LIANG 《Journal of Modern Transportation》 2012年第2期98-102,共5页
The multi-block high-temperature superconducting (HTS) maglev system has more complicated dynamic characteristics than the single-block HTS maglev system. To study its vibration characteristics, we designed a maglev... The multi-block high-temperature superconducting (HTS) maglev system has more complicated dynamic characteristics than the single-block HTS maglev system. To study its vibration characteristics, we designed a maglev measurement system. The system responses at the excitation frequencies of 2, 3 and 15 Hz were examined. Results show that the responses under excitation frequencies of 2 and 3 Hz include a 6 Hz component, which means that the maglev system is a critical nonlinear system. Moreover, the 6 Hz component is much stronger than the 2 Hz or 3 Hz components in the response spectra. There is the interaction between excitation and response. Under an excitation frequency of 15 Hz, intensified low-frequency perturbations were observed. 展开更多
关键词 high-temperature superconductor vibration characteristics maglev system
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HIGH-TEMPERATURE HEAT CAPACITIES OF THE PHASES IN Y-Ba-Cu-O SYSTEM
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作者 Zhang Hengzhong Fang Zheng +1 位作者 Zhang Pingmin Chen Xinmin(Department of Chemistry,Central South University of Technology,Changsha 410083) 《中国有色金属学会会刊:英文版》 EI CSCD 1995年第4期31-35,共5页
HIGH-TEMPERATUREHEATCAPACITIESOFTHEPHASESINY-Ba-Cu-OSYSTEMZhangHengzhong;FangZheng;ZhangPingmin;ChenXinmin(D... HIGH-TEMPERATUREHEATCAPACITIESOFTHEPHASESINY-Ba-Cu-OSYSTEMZhangHengzhong;FangZheng;ZhangPingmin;ChenXinmin(DepartmentofChemis... 展开更多
关键词 HEAT capacity high-temperature DSC TG superconductor Y-BA-CU-O SYSTEM
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Josephson Fourier Spectrometer Based on HTSP: Construction and Quantum Computer Realization Problem
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作者 Dresvyannikov Maxim Zherikhina Larisa +1 位作者 Murzin Vladimir Tskhovrebov Andrey 《Journal of Quantum Information Science》 2014年第3期133-136,共4页
The possibility of creating a spectrometer of THz range, which is based on non-stationary Josephson effect in HTSP is considered. Simple design of Josephson junction adjustable at cryogenic conditions is proposed. Usi... The possibility of creating a spectrometer of THz range, which is based on non-stationary Josephson effect in HTSP is considered. Simple design of Josephson junction adjustable at cryogenic conditions is proposed. Using of such device for solving the problem of factorization of high value numbers, which in fact is the only motivation for creating a quantum computer, is discussed. 展开更多
关键词 high-temperature superconductorS JOSEPHSON Effect QUANTUM COMPUTER
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HT-7超导托卡马克装置真空系统参数的标定及分析 被引量:6
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作者 胡建生 辜学茂 +2 位作者 王小明 罗南昌 HT-7真空组 《真空科学与技术学报》 EI CAS CSCD 北大核心 2004年第2期149-153,共5页
主要介绍HT 7超导托卡马克装置真空系统参数的标定和分析。在有无低温泵工作条件下 ,分别测量了HT 7真空系统对氢气、氘气、氦气和氮气的抽速曲线。分析包括器壁吸附等因素对HT 7真空系统不同气体抽速的影响。同时简单分析了在不同情况... 主要介绍HT 7超导托卡马克装置真空系统参数的标定和分析。在有无低温泵工作条件下 ,分别测量了HT 7真空系统对氢气、氘气、氦气和氮气的抽速曲线。分析包括器壁吸附等因素对HT 7真空系统不同气体抽速的影响。同时简单分析了在不同情况下 ,装置真空分布情况 ,为实现HT 7装置气体平衡提供参考。讨论和测量如何利用质谱计来分氦和氘。 展开更多
关键词 ht-7 超导托卡马克装置 真空系统 参数标定 抽速曲线 质谱计 气体平衡
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Characteristics of Bi-2223 HTS Tapes Under Short-Circuit Current Impacts in Hybrid Energy Transmission Pipelines
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作者 Yuguang Sun Chao Yin +2 位作者 Weizhen Li Xinyang Li Xiaohua Jiang 《CSEE Journal of Power and Energy Systems》 SCIE EI CSCD 2024年第2期736-745,共10页
A hybrid energy transmission pipeline is proposed with the aim of long-distance cooperative transmission of electricity and chemical fuels, which is composed of an inner high-temperature superconducting (HTS) power ca... A hybrid energy transmission pipeline is proposed with the aim of long-distance cooperative transmission of electricity and chemical fuels, which is composed of an inner high-temperature superconducting (HTS) power cable and outer liquefied natural gas (LNG) pipeline. The flowing LNG could maintain the operating temperature of the inner HTS power cable within the range of 85 K-90 K, thus the Bi-2223 superconductors in the HTS power cable produce little Joule loss with the transmission current below the critical current. Owing to the advantages of high power density, low transmission losses and economical manufacturing costs, the hybrid energy transmission pipeline is expected to be widely utilized in the near future. In order to ensure the safety of the HTS power cable and explosive LNG in case of short-circuit faults, this paper tests and analyzes the characteristics of Bi-2223 HTS tapes of the Type HT-CA, Type HT-SS and Type H models under short-circuit current impacts at the LNG cooling temperature (85 K-90 K). An experimental platform is designed and established for the ampacity tests of HTS tapes above LN2 cooling temperature (77 K). The AC over-current impact tests at 85 K-90 K are carried out on each sample of Bi-2223 tapes respectively, and the experimental results are analyzed and compared to evaluate their performances under different operating conditions. The results indicate that the Type HT-CA tape can withstand 50 Hz short-circuit current impact with the amplitude of 1108 A (10 times of critical current Ic ) for 100 ms at 90 K, and its resistance is the smallest of the three tested samples under similar current impacts. Therefore, the Type HT-CA Bi-2223 tape is the optimal superconductor of the HTS power cable in the hybrid energy transmission pipeline. 展开更多
关键词 Bi-2223 high-temperature superconducting(hts)tape critical current hybrid energy transmission pipeline liquefied natural gas(LNG)cooling temperature short-circuit current impact characteristics
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On the Path to High-Temperature Josephson Multi-Junction Devices
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作者 Xu Wang Fucong Chen +4 位作者 Zefeng Lin Shibing Tian Chunguang Li Victor Kornev Nikolay Kolotinskiy 《Electromagnetic Science》 2024年第3期71-78,共8页
We report our progress in the high-temperature superconductor(HTS)Josephson junction fabrication process founded on utilizing a focused helium ion beam damaging technique and discuss the expected device performance at... We report our progress in the high-temperature superconductor(HTS)Josephson junction fabrication process founded on utilizing a focused helium ion beam damaging technique and discuss the expected device performance attainable with the HTS multi-junction device technology.Both the achievable high value of characteristic voltage V_(C)=I_(C)R_(N)of Josephson junctions and the ability to design a large number of arbitrary located Josephson junctions allow narrowing the existing gap in design abilities for lowtemperature superconductor(LTS)and HTS circuits even with using a single YBa_(2)Cu_(3)O_(7-x) film layer.A one-layer topology of active electrically small antenna is suggested and its voltage response characteristics are considered. 展开更多
关键词 Josephson junctions high-temperature superconductors YBa_(2)Cu_(3)O_(7-x)(YBCO) Focused helium ion beam fabrication technique Josephson multi-junction devices Superconducting quantum interference device Active electrically small antenna
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Development of metal-organic deposition-derived second-generation high-temperature superconductor tapes and artificial flux pinning
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作者 Dong-Xu Wang Jing Chen +1 位作者 Di-Fan Zhou Chuan-Bing Cai 《Advances in Manufacturing》 SCIE EI CAS CSCD 2023年第3期523-540,共18页
The second-generation high-temperature superconductor tape(2G-HTS,also known as a coated conductor)based on REBaCuO(REBa_(2)Cu_(3)O_(7-δ))exhibits high current density and potential cost-effective price/performance,c... The second-generation high-temperature superconductor tape(2G-HTS,also known as a coated conductor)based on REBaCuO(REBa_(2)Cu_(3)O_(7-δ))exhibits high current density and potential cost-effective price/performance,compared with conventional superconducting materials.Using commercial 2G-HTS tapes,more than a dozen cable vendors had been manufacturing REBCO cables,such as the latest kilometer-class REBCO cable,which was incorporated into a civil grid on December 2021,as part of the recordbreaking 35-kV-voltage superconductor cable demonstration project in downtown Shanghai.This paper describes the development of HTS-coated conductors,then outlines the various technological routes for their preparation,reviews the artificial flux pinning of coated conductors,and finally summarizes the technological breakthroughs,the latest research advances,and provides an outlook on their application prospects. 展开更多
关键词 high-temperature superconductors RE123 superconductor tapes Chemical solution deposition Flux pinning
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A 400 MHz Low Noise Amplifier at Cryogenic Temperature for Superconductor Filter System 被引量:3
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作者 Guo-Bin Wang Xiao-Ping Zhang Bi-Song Cao 《Journal of Electronic Science and Technology of China》 2007年第3期230-233,共4页
A cryogenic low noise amplifier (LNA) using Agilent high electron mobility transistor (HEMT) for 380 MHzto 480 MHz is designed and fabricated, and the excellent cryogenic performance in superconducting receiver fr... A cryogenic low noise amplifier (LNA) using Agilent high electron mobility transistor (HEMT) for 380 MHzto 480 MHz is designed and fabricated, and the excellent cryogenic performance in superconducting receiver front-end for communication system is achieved. A special input impedance matching topology is implemented to provide low noise figure (NF) and good input matching in this cryogenic LNA design. The measurement results show that the NF is within 0.25 dB from the minimum NF of a single transistor, the power gain is above 20 dB, the flatness is within 1 dB, and the maximum input return loss is lower than -20 dB in bandwidth. 展开更多
关键词 Cryogenic low noise amplifier hts fiter magnetic core inductor with high Q value superconductor receiver front-end.
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High T_c Superconductor Theoretical Models and Electromagnetic Flux Characteristics 被引量:2
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作者 金建勋 《Journal of Electronic Science and Technology of China》 2006年第3期202-208,共7页
High Tc Superconductors (HTS) have special electromagnetic characteristics and phenomena. Effort has been made in order to theoretically understand the appfied HTS superconductivity and HTS behaviors for practical a... High Tc Superconductors (HTS) have special electromagnetic characteristics and phenomena. Effort has been made in order to theoretically understand the appfied HTS superconductivity and HTS behaviors for practical appfications, various theoretical models related to the HTS electromagnetic properties have been developed. The theoretical models and analytic methods are summarized with regard to understanding the HTS magnetic flux characteristic which is one of the most critical issues related to HTS appfications such as for HTS magnetic levitation application. 展开更多
关键词 High Tc superconductor hts) magnetic flux magnetic field levitationforce MAGNETIZATION critical current
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Electron-phonon coupling in cuprate and iron-based superconductors revealed by Raman scattering
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作者 张安民 张清明 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第8期51-62,共12页
Electron-phonon coupling (EPC) in cuprate and iron-based superconducting systems, as revealed by Raman scat- tering, is briefly reviewed. We introduce how to extract the coupling information through phonon lineshape... Electron-phonon coupling (EPC) in cuprate and iron-based superconducting systems, as revealed by Raman scat- tering, is briefly reviewed. We introduce how to extract the coupling information through phonon lineshape. Then we discuss the strength of EPC in different high-temperature superconductor (HTSC) systems and possible factors affecting the strength. A comparative study between Raman phonon theories and experiments allows us to gain insight into some crucial electronic properties, especially superconductivity. Finally, we summarize and compare EPC in the two existing HTSC systems, and discuss what role it may play in the HTSC. 展开更多
关键词 electron-phonon coupling cuprate and iron-based superconducting systems Raman scattering high-temperature superconductor
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Numerical modelling of high-temperature superconducting dynamos:A review 被引量:1
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作者 Mark D Ainslie 《Superconductivity》 2023年第1期1-16,共16页
The high‐temperature superconducting(HTS)dynamo enables injection of large DC currents into a superconducting coil,without the need for thermally‐inefficient current leads.Because of this important advantage,there i... The high‐temperature superconducting(HTS)dynamo enables injection of large DC currents into a superconducting coil,without the need for thermally‐inefficient current leads.Because of this important advantage,there is significant interest in using such technology to energise superconducting coils in superconducting rotating machines and NMR/MRI magnets.Despite the extensive experimental work carried out over the past decade,there was–until very recently–considerable confusion and debate regarding the physical origin of the HTS dynamo’s DC output voltage.Numerical modelling has played a key role in elucidating the underlying physics of such devices and several different numerical models have now been developed as useful and cost‐effective tools to not only explain and further examine experimental results,but also optimise and improve dynamo designs.This review summarises all of the developments in this important area over recent years,including modelling the open‐circuit voltage behaviour in 2D and 3D,the definition of a new benchmark problem for the HTS modelling community,investigating key dynamo parameters,modelling dynamic coil charging behaviour and calculating losses.A view towards the future is provided,including the outstanding challenges and the developments required to address these. 展开更多
关键词 hts modelling hts dynamo hts flux pump High temperature superconductors Numerical simulation Finite‐element method
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