高温超导大电流导体临界电流特性研究  

The application of relaxation iteration method in the design of current lead

作　　者：展晓斐 任丽[1] 王作帅[1] 徐颖[1] 

机构地区：[1]华中科技大学强电磁工程与新技术国家重点实验室,超导中心,武汉430074

出　　处：《低温与超导》2016年第2期18-21,52,共5页Cryogenics and Superconductivity

基　　金：华中科技大学自主创新研究基金(2014TS145);国际热核聚变实验堆(ITER)计划专项(2011GB113004)

摘　　要：YBCO带材在高磁场下仍有好的通流性能,可以用多根高温超导带材构成大电流导体用于高场磁体。为减小导体的交流损耗,大电流导体有多种结构形式,缠绕型和扭转堆叠是其中的两种结构形式。临界电流是高温超导大电流导体的重要指标之一。文中采用四引线法对这两种导体结构在液氮、自场环境下的临界电流特性进行了实验测量,分析并总结了其临界电流特性与结构的关系。YBCO coated tapes have high current capabilities at high magnetic fields. It is desired to develop a multi - tape high current conductor for high -field magnets. Considering reducing AC loss of the conductor, many conductor structure of conductor have been developed. CORC （ Conductor on Round Core） and TSTC （Twisted Stacked Tape Cable） are two of them. One of important index of high - current conductor is critical current. The critical current of them was measured in liquid nitrogen and self- field with the four probe method, analysis and summaries were discussed on the relationship between conductor structure and the characteristics of critical current of the conductor.

关 键 词：高温超导 大电流 缠绕型导体 扭转堆叠导体 临界电流 

分 类 号：TM26[一般工业技术—材料科学与工程]