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Development of the use exception and the systematic design technique of AC Superconductor

交流超导体的使用例外及系统设计技术的发展

基本信息

批准号：
06555078
负责人：
TSUKAMOTO Osami
金额：
$ 6.53万
依托单位：
YOKOHAMA NATIONAL UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1996
项目状态：
已结题

项目摘要

This fiscal year formulated the design technique of AC Superconductor that collected the research result so far in the last fiscal year of a plan for 3 years, and it responded with the classification of the application apparatus which is the last purpose of this research.The cases (High magnetic-field application, Full superconducting generator, etc.) where the peak magnetic field of the external magnetic field to which a line is exposed is more than it, and in not more than (Low magnetic-field application : transformer, Current-limiter, etc.) it, application apparatus can be divided if it stands on the viewpoint of a design of an alternating-current super-conduction line.Moreover, it can divide by low alternating-current loss priority or stability priority.The design technique of the line material which was suitable for each according to the classified these apparatus was clarified.Hereafter, the contents are summarized.(1) Stabilization to magnetic instabilityFirst, the conditions wh … More ich do not cause the magnetic instability to a self-magnetic field were searched for, and the validity was verified by the experiment.Stable conditions were decided by the thickness of the filament domain of line section, critical current density, and the temperature margin, and the stabilization design of a line was attained according to the purpose.(2) Clarification of the reduction technique of AC lossIn the high magnetic field, the loss resulting from the self-magnetic field and the external length magnetic field accompanied by transport is superior, and detailed-izing of the diameter of the filament and little-izing of the winding pitch which have been conventionally pursued in an AC superconductor.In a low magnetic field the loss resulting from the self-magnetic field and the external length mangetic field accompanied by transport current is superior and detailed-izing of the diameter of a filament is not necessarily important.Moreover, although seldom known conventionally, it found out that little-izing of a winding pitch was also effective in loss reduction.By giving external magnetic-field conditions, the line design conditions which make loss by the low magnetic field the minimum were become clear.(3) Stabilization to mechanical disctrbanceThe relation with the occupancy area and the arrangement in the section of stabilization copper which governs loss and stability to mechanical discurbance is clarified, and it enabled it to have grasped trade-off of stability and loss quantitatively.The details of the above result were summarized as the report. Less

本年度制定了交流超导体的设计技术，该技术收集了3年计划的最后一个财政年度迄今为止的研究成果，并与本研究的最后目的应用设备的分类相对应。案例（高磁场应用，全超导发电机等）当线路所暴露的外部磁场的峰值磁场大于它时，并且不大于（低磁场应用：Transformer、限流器等）从交流超导线路设计的观点出发，可以划分应用装置，而且可以按低交流损耗优先级或稳定性优先级进行划分。根据这些装置的分类，阐明了适用于每种装置的线路材料的设计技术。(1)磁不稳定性的稳定化首先， ...更多信息寻找不会引起自磁场磁不稳定的条件，并通过实验验证了其有效性，稳定条件由线路截面丝畴厚度、临界电流密度和温度裕度决定，并根据目的实现线路的稳定设计。(2)阐明了交流损耗的降低技术在强磁场中，由自身磁场和伴随传输的外部长度磁场产生的损耗是上级的，详细讨论了交流超导体中通常采用的灯丝直径和绕组节距的减小方法，并在低磁场下讨论了自绝缘引起的损耗磁场和伴随着传输电流的外部长度磁场是上级的，并且灯丝直径的详细说明并不一定重要。此外，尽管传统上很少知道，但发现绕组节距的小化在降低损耗方面也是有效的。通过给出外部磁场条件，使低磁场损耗最小的线路设计条件变得清晰。(3)稳定对机械扰动的影响阐明了控制机械扰动的损失和稳定性的稳定铜截面的占有面积和排列方式的关系，使之能够定量地把握稳定性和损失的权衡，并将上述结果的详细内容总结为报告。少