REBCO High Temperature Superconducting Magnets With High Field Stability : Understanding And Mitigating The Shielding Current Effects
具有高场稳定性的 REBCO 高温超导磁体:了解并减轻屏蔽电流效应
基本信息
- 批准号:20K04409
- 负责人:
- 金额:$ 2.33万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2020
- 资助国家:日本
- 起止时间:2020-04-01 至 2022-03-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In the first year of the project, the numerical model evaluating precisely the electromagnetic behavior of REBCO winding was developed, and experimental validations confirmed its accuracy on small scale test pancakes.In this last year detailed comparison were conducted on test coils to understand the relationship between current distribution dynamics, voltage, and generated field, which lead to the publication of a joint paper in collaboration with Grenoble CNRS.Then, the development was continued with the help of a more powerful workstation, which made it possible to simulate one half of a full-size very high field insert, like the one developed at HFLSM in the framework of the 30T CSM project.The accuracy of the model predictions on large scale systems will have to be confirmed once the magnet is tested in the next years, but already significant insights were obtained in terms of field homogeneity, field drift and AC losses for that magnet. This pave the way for an efficient control of the magnet, and the compensation of field drift in particular.In parallel, the project evolved toward calculating the consequences of inhomogenous current distribution in REBCO conductors in terms of mechanical stress. This development was triggered by rising concerns in the Applied Superconductivity community about the risk posed by stress concentrations in REBCO windings. The model developed in the course of this project could be readily adapted to provide insight on that topic. This development lead to an invited oral presentation at international conference CEC-ICMC in July 2021.
在该项目的第一年,开发了精确评估 REBCO 绕组电磁行为的数值模型,并通过实验验证了其在小规模测试煎饼上的准确性。去年,对测试线圈进行了详细比较,以了解电流分布动态、电压和生成场之间的关系,从而与格勒诺布尔 CNRS 合作发表了一篇联合论文。然后,继续开发 在功能更强大的工作站的帮助下,可以模拟全尺寸极高磁场插入物的一半,例如 HFLSM 在 30T CSM 项目框架中开发的插入物。在未来几年对磁体进行测试后,必须确认大型系统上模型预测的准确性,但已经在该磁体的场均匀性、场漂移和交流损耗方面获得了重要的见解。这为磁体的有效控制,特别是场漂移的补偿铺平了道路。与此同时,该项目的发展方向是计算 REBCO 导体中不均匀电流分布对机械应力的影响。这一发展是由于应用超导界对 REBCO 绕组中应力集中所带来的风险日益担忧而引发的。在该项目过程中开发的模型可以很容易地进行调整,以提供对该主题的见解。这一发展导致 2021 年 7 月在国际会议 CEC-ICMC 上受邀进行口头演讲。
项目成果
期刊论文数量(9)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Design considerations for practical very high field cryogen-free superconducting magnets: 33 T and beyond
实用极高场无制冷剂超导磁体的设计考虑因素:33 T 及以上
- DOI:
- 发表时间:2021
- 期刊:
- 影响因子:0
- 作者:Vialle Julien;Badel Arnaud;Rozier Blandine;Tixador Pascal;Arnaud BADEL
- 通讯作者:Arnaud BADEL
Field and Voltage transient behavior in REBCO HTS coils : Comparison between Experiments and modelling
REBCO HTS 线圈中的场和电压瞬态行为:实验与建模之间的比较
- DOI:
- 发表时间:2020
- 期刊:
- 影响因子:0
- 作者:Vialle Julien;Badel Arnaud;Rozier Blandine;Tixador Pascal;Arnaud BADEL;Arnaud BADEL;Arnaud Badel
- 通讯作者:Arnaud Badel
Detection and Protection Against Quench/Local Thermal Runaway for a 30 T Cryogen-Free Magnet
30 T 无制冷剂磁体的淬火/局部热失控检测和保护
- DOI:10.1109/tasc.2021.3059604
- 发表时间:2021
- 期刊:
- 影响因子:1.8
- 作者:Badel Arnaud;Okada Tatsunori;Takahashi Kohki;Fujita Shinji;Miyazaki Hiroshi;Ioka Shigeru;Awaji Satoshi
- 通讯作者:Awaji Satoshi
Preliminary Tests of Pancakes From a 12 T REBCO Insulated Solenoid Magnet
12 T REBCO 绝缘电磁铁煎饼的初步测试
- DOI:10.1109/tasc.2021.3057837
- 发表时间:2021
- 期刊:
- 影响因子:1.8
- 作者:Vialle Julien;Badel Arnaud;Tixador Pascal;Ciceron Jeremie;Forest Frederick;Pasquet Raphael
- 通讯作者:Pasquet Raphael
Practical High Temperature Superconducting Wires for High Field Magnets
高场磁体实用高温超导线材
- DOI:
- 发表时间:2020
- 期刊:
- 影响因子:0
- 作者:小渕 穣;高嶋 一登;向井 利春;小川 和輝;Arnaud Badel
- 通讯作者:Arnaud Badel
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