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IEEE Transactions on Applied Superconductivity最新文献

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Cooling Enhancement of an Axially Forced Air-Cooled Motors Using Axial Air Deflector 利用轴向空气导流板增强轴流式空气冷却电机的冷却效果
IF 1.7 3区 物理与天体物理
IEEE Transactions on Applied Superconductivity Pub Date : 2024-09-25 DOI: 10.1109/TASC.2024.3468073
Ziyi Xu;Yongming Xu;Yanbo Wang;Yaodong Wang
{"title":"Cooling Enhancement of an Axially Forced Air-Cooled Motors Using Axial Air Deflector","authors":"Ziyi Xu;Yongming Xu;Yanbo Wang;Yaodong Wang","doi":"10.1109/TASC.2024.3468073","DOIUrl":"https://doi.org/10.1109/TASC.2024.3468073","url":null,"abstract":"This paper presents a proposal for the implementation of an axial air deflector in order to enhance the cooling capabilities of an axially forced air-cooled motor. The prediction of global fluid-thermal characteristics is carried out using the numerical analysis method. The obtained calculations are validated using experiments, with a relative error of 4.4% observed between the simulated and measured values. The present study focuses on investigating the cooling enhancement mechanism of the axial air deflector through numerical analysis and subsequently validating its effectiveness in enhancing cooling. Furthermore, an analysis was conducted to examine the correlation between the geometric parameters of the axial air deflector and its ability to enhance cooling. Upon the installation of the axial air deflector, notable enhancements are observed in the fluid flow condition within the end space. Consequently, the stator winding experiences a reduction in both the maximum temperature rise and average temperature rise, amounting to 2.5 K and 1.7 K, respectively.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"34 8","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434609","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
Research on Low Speed Operation of PMSM Based on Improved Non-Singular Fast Terminal SMC 基于改进型非正弦快速终端 SMC 的 PMSM 低速运行研究
IF 1.7 3区 物理与天体物理
IEEE Transactions on Applied Superconductivity Pub Date : 2024-09-25 DOI: 10.1109/TASC.2024.3468070
Naifeng Zhang;Kaikai Guo;Youguang Guo
{"title":"Research on Low Speed Operation of PMSM Based on Improved Non-Singular Fast Terminal SMC","authors":"Naifeng Zhang;Kaikai Guo;Youguang Guo","doi":"10.1109/TASC.2024.3468070","DOIUrl":"https://doi.org/10.1109/TASC.2024.3468070","url":null,"abstract":"A non-singular fast terminal sliding mode control (SMC) strategy with a new piecewise reaching law (PRL) of permanent magnet synchronous motor is presented to reduce the steady-state buffeting in this paper. A speed adaptive regulator is designed to make the motor work stably at the lowest speed value under the limitation of the DC bus voltage condition when the motor starts non-normally or with locked rotor, and a disturbance observation is introduced to further improve the anti-interference ability of the control system. The experiment test is carried out. Compared with the experimental results of traditional SMC, the buffeting suppression of the control system using non-singular fast terminal SMC with PRL is reduced by 66.7%, 57.9% and 60% at 20 rpm, 30 rpm and 40 rpm under no-load condition, respectively. The buffeting suppression and the dynamic stability time of the proposed method are reduced by 52.3% and 53.3% under load condition, respectively.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"34 8","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142524190","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
Electrical Performance of the Insulation Mock-Ups for the Bi-2212 Cable-in-Conduit Conductor 用于 Bi-2212 电缆导管的绝缘模拟件的电气性能
IF 1.7 3区 物理与天体物理
IEEE Transactions on Applied Superconductivity Pub Date : 2024-09-24 DOI: 10.1109/TASC.2024.3467155
Jing Sun;Zhihong Liu;Wenge Chen;Jiefeng Wu;Zhaohui Yan;Xin Luo;Xiaosong Fan
{"title":"Electrical Performance of the Insulation Mock-Ups for the Bi-2212 Cable-in-Conduit Conductor","authors":"Jing Sun;Zhihong Liu;Wenge Chen;Jiefeng Wu;Zhaohui Yan;Xin Luo;Xiaosong Fan","doi":"10.1109/TASC.2024.3467155","DOIUrl":"https://doi.org/10.1109/TASC.2024.3467155","url":null,"abstract":"A Bi-2212 cable-in-conduit conductor is manufactured by winding, heat treating, and insulating the superconducting conductors. To verify the performance of alumina-silicate fiber used as insulating fiber in the Bi-2212 cable-in-conduit conductor, mock-ups of 5 × 5 array with alumina-silicate fiber and glass fiber were manufactured. They have undergone ac and dc tests at room temperature, Paschen test, thermal cycling, and electrical breakdown test. The results indicate that the mock-ups with the alumina-silicate fiber tape have similar performance with the mock-up of the glass fiber tape. The performance of the mock-ups confirms the feasibility of using alumina-silicate fiber tapes for the Bi-2212 cable-in-conduit conductor that are made by wind and react, laying the foundation for their subsequent applications.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"34 9","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518010","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
Effect Analysis of Velocity Characteristic on Breakdown Endurance Performance for DC Vacuum Circuit Breaker 速度特性对直流真空断路器耐击穿性能的影响分析
IF 1.7 3区 物理与天体物理
IEEE Transactions on Applied Superconductivity Pub Date : 2024-09-24 DOI: 10.1109/TASC.2024.3456564
Xiaoming Liu;Hongfei Shi;Hai Chen
{"title":"Effect Analysis of Velocity Characteristic on Breakdown Endurance Performance for DC Vacuum Circuit Breaker","authors":"Xiaoming Liu;Hongfei Shi;Hai Chen","doi":"10.1109/TASC.2024.3456564","DOIUrl":"https://doi.org/10.1109/TASC.2024.3456564","url":null,"abstract":"For the mechanical DC vacuum circuit breaker, the velocity characteristic of the actuating mechanism will directly influence the breaking capacity and reliability of the circuit breaker. In this paper, a 10 kV/5 kA DC vacuum circuit breaker is taken as the research object to establish a post-arc sheath development model, and the post-arc breakdown endurance performance under the field-circuitry coupling effect of the electromechanical system is obtained. A non-intrusive polynomial chaos expansion model is established according to the relationship between the velocity of the actuating mechanism and the breakdown endurance performance, and the probability distribution of breakdown under the uncertainty of the velocity of the mechanism in the electromechanical coupling system is analyzed.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"34 8","pages":"1-4"},"PeriodicalIF":1.7,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142540441","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
Analysis of Interruption Performance of DC Vacuum Circuit Breaker Under Field and Circuitry Coupling in Electromechanical System 机电系统中场耦合和电路耦合情况下直流真空断路器的断路性能分析
IF 1.7 3区 物理与天体物理
IEEE Transactions on Applied Superconductivity Pub Date : 2024-09-24 DOI: 10.1109/TASC.2024.3456485
Xiaoming Liu;Hongfei Shi;Hai Chen
{"title":"Analysis of Interruption Performance of DC Vacuum Circuit Breaker Under Field and Circuitry Coupling in Electromechanical System","authors":"Xiaoming Liu;Hongfei Shi;Hai Chen","doi":"10.1109/TASC.2024.3456485","DOIUrl":"https://doi.org/10.1109/TASC.2024.3456485","url":null,"abstract":"The main factors affecting the fault interruption capability of an active DC vacuum circuit breaker are the structural parameters of the contact surface of the vacuum interrupter, the gap distance at current zero point and the parameters of the commutation circuitry. This paper takes 10 kV/5 kA DC vacuum circuit breaker as the research object, establishes the sheath development model under the coupling of multiple fields and circuitry, and parameterizes the post-arc dielectric recovery strength under the influence of electromechanical parameters. Moreover, the criterion for post-arc re-breakdown is proposed and the limit of breaking current threshold is obtained under the influence of multiple factors.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"34 8","pages":"1-4"},"PeriodicalIF":1.7,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142538034","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 Optimization of HTSPPT Winding Based on Flux Diverter 基于磁通分流器的 HTSPPT 绕组交流损耗优化
IF 1.7 3区 物理与天体物理
IEEE Transactions on Applied Superconductivity Pub Date : 2024-09-23 DOI: 10.1109/TASC.2024.3442996
Zhenmei Li;Sai Wang;Haitao Li;Hao Wu;Zhenyan Li
{"title":"AC Loss Optimization of HTSPPT Winding Based on Flux Diverter","authors":"Zhenmei Li;Sai Wang;Haitao Li;Hao Wu;Zhenyan Li","doi":"10.1109/TASC.2024.3442996","DOIUrl":"https://doi.org/10.1109/TASC.2024.3442996","url":null,"abstract":"The AC loss of a high-temperature superconducting pulse transformer (HTSPPT) is essential for determining the energy storage capacity and size of the pulse power supply in an electromagnetic launch system. Especially in the continuous pulse launch system, the superconducting winding coil will produce significant AC loss during constant charging and discharging. This paper modelled the HTSPPT in the continuous pulse transmitting power supply system. The AC loss is reduced by adding the flux diverter. An analysis is conducted on how the placement, quantity, and structural characteristics of the flux diverter impact the AC losses of the superconducting pulse transformer. The simulation findings indicate that the total AC loss of the HTSPPT with the flux diverter is reduced by 70.2% compared with that without the flux diverter by setting the parameters reasonably.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"34 8","pages":"1-4"},"PeriodicalIF":1.7,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142452680","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
Multi-Objective Optimization Scheduling of Integrated Energy System Based on Operational Characteristics Clustering 基于运行特征聚类的综合能源系统多目标优化调度
IF 1.7 3区 物理与天体物理
IEEE Transactions on Applied Superconductivity Pub Date : 2024-09-23 DOI: 10.1109/TASC.2024.3456560
Guangchao Ma;Ning Yan;Mingqiang Wang;Xiangjun Li;Shaohua Ma
{"title":"Multi-Objective Optimization Scheduling of Integrated Energy System Based on Operational Characteristics Clustering","authors":"Guangchao Ma;Ning Yan;Mingqiang Wang;Xiangjun Li;Shaohua Ma","doi":"10.1109/TASC.2024.3456560","DOIUrl":"https://doi.org/10.1109/TASC.2024.3456560","url":null,"abstract":"In order to improve the rationality of integrated energy system (IES) scheduling strategy and promote carbon reduction planning, this paper proposes a multi-objective optimization scheduling of IES based on operational characteristics clustering. Firstly, the operation architecture of IES is constructed, and the dynamic supply and demand balance formula is established, and the analysis method of source and load uncertainties is further proposed. After the initial historical data is processed, the variation of each hour is calculated and the k-means method is used to cluster the source and load scenarios. Secondly, according to the clustering results, the operation scenarios of IES are classified, and the carbon emissions and economics of each scenario are planned. Finally, the multi-objective optimal scheduling model with the lowest carbon emissions and the lowest operating costs is established. In terms of example analysis, the effectiveness of the proposed method in carbon emissions and economics is verified from the 12-months scenario and the 4-seasons scenario.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"34 8","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142555079","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
ICCOS-Based Continuous Inductive Pulse Power Circuit Topology 基于 ICCOS 的连续电感脉冲电源电路拓扑结构
IF 1.7 3区 物理与天体物理
IEEE Transactions on Applied Superconductivity Pub Date : 2024-09-23 DOI: 10.1109/TASC.2024.3464449
Zhenmei Li;Hao Wu;Haitao Li
{"title":"ICCOS-Based Continuous Inductive Pulse Power Circuit Topology","authors":"Zhenmei Li;Hao Wu;Haitao Li","doi":"10.1109/TASC.2024.3464449","DOIUrl":"https://doi.org/10.1109/TASC.2024.3464449","url":null,"abstract":"The inductive pulse power supply (IPPS) outputs a long high-current pulse wave tail, which is prone to cause chamber arcing and muzzle ablation problems in electromagnetic railguns. In this paper, a novel continuous pulsed power supply circuit based on high-temperature superconducting pulse power transformer (HTSPPT) is proposed by utilizing the inverse current commutation with semiconductor devices (ICCOS) technique. The functional realization of the circuit is based on the cooperation of power electronic switches and capacitor precharged voltages to provide flat-topped short-wave tail current pulse with short wave tails for railguns while ensuring a compact device composition. Simulation results show that the novel circuit can quickly terminate the load current pulse and achieves controllable recovery of the capacitor precharged voltage. The superiority of the circuit is verified by comparative analysis with the same kind of circuits.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"34 8","pages":"1-4"},"PeriodicalIF":1.7,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142383379","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
Potential Interpretation of the Meissner Effect in Superconductors: Insights From Vector Magnetic Circuit Theory 超导体中迈斯纳效应的潜在解释：矢量磁路理论的启示
IF 1.7 3区 物理与天体物理
IEEE Transactions on Applied Superconductivity Pub Date : 2024-09-23 DOI: 10.1109/TASC.2024.3466521
Wei Qin;Ming Cheng;Xinkai Zhu;Zheng Wang;Wei Hua
{"title":"Potential Interpretation of the Meissner Effect in Superconductors: Insights From Vector Magnetic Circuit Theory","authors":"Wei Qin;Ming Cheng;Xinkai Zhu;Zheng Wang;Wei Hua","doi":"10.1109/TASC.2024.3466521","DOIUrl":"https://doi.org/10.1109/TASC.2024.3466521","url":null,"abstract":"A superconductor placed in a weak magnetic field and cooled down through the transition temperature expels magnetic flux. This phenomenon, known as the Meissner effect, is arguably the most essential property of superconductors. Although macro phenomenological theories and micro theory of superconductors are available, there is still lack of simple and clear clarification of the mechanism of Meissner Effect from macro electromagnetic perspective by now. In this study, a vector magnetic circuit theory is proposed to scrutinize the limitations of the classical electromagnetism theory. A thorough analysis is conducted to elucidate the underlying mechanisms governing the Meissner effect in superconductors with the application of vector magnetic circuit theory and time-varying magductance, as well as to discern the distribution of screening currents of the superconducting. The utilization of the vector magnetic circuit theory facilitates the successful differentiation between the perfect conductor and the superconductor under field-cooled conditions. Finally, a closed superconducting coil experimental platform is constructed to validate the effectiveness and feasibility of the proposed theory. This experimental support is of paramount importance for theoretical research and engineering applications of superconductors and provides a reliable foundation for future investigations into the magnetic circuit behavior and magnetic circuit characteristics specific to superconducting materials.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"34 9","pages":"1-9"},"PeriodicalIF":1.7,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142434589","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
Experiment and Simulation for REBCO Superconducting Tape in Different Temperature and Current on Quasi-Adiabatic Condition 准绝热条件下不同温度和电流下 REBCO 超导带的实验与模拟
IF 1.7 3区 物理与天体物理
IEEE Transactions on Applied Superconductivity Pub Date : 2024-09-23 DOI: 10.1109/TASC.2024.3466794
Huang Chen;Kai-song Wang;Kai Hua;Yi-neng Liu;Hua-jun Liu;Fang Liu;Yi Shi;Peng Gao;Chao Zhou
{"title":"Experiment and Simulation for REBCO Superconducting Tape in Different Temperature and Current on Quasi-Adiabatic Condition","authors":"Huang Chen;Kai-song Wang;Kai Hua;Yi-neng Liu;Hua-jun Liu;Fang Liu;Yi Shi;Peng Gao;Chao Zhou","doi":"10.1109/TASC.2024.3466794","DOIUrl":"https://doi.org/10.1109/TASC.2024.3466794","url":null,"abstract":"Quench protection is used to ensure the safety of superconducting magnets. Only by understanding the quench characteristics of superconducting materials profoundly can we take reasonable protective measures to avoid the damage of magnets caused by local normal zone propagation. An experimental insert set-up has been accomplished and preliminary tested at the Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP). Measurements are performed as a function of normalized current ratio and magnetic field for several operating temperatures between 20 K and 50 K. This paper focuses on the measurement of experimental data and the fitting comparison of a simplified adiabatic models about normal zone propagation velocity (NZPV) and minimum quench energy (MQE). These studies provide necessary theoretical guidance for the thermal stability of superconducting materials.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"34 8","pages":"1-5"},"PeriodicalIF":1.7,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142587558","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
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