具有多层结构的BSCCO电缆交流损耗测量研究  

Study of AC loss test in the BSCCO superconducting cable with a multilayer structure

作　　者：唐先莉 马勇虎[1] Tang Xianli Ma Yonghu(Yanbian University, Yanji 133002, China)

机构地区：[1]延边大学,延吉133002

出　　处：《低温与超导》2017年第2期63-67,共5页Cryogenics and Superconductivity

摘　　要：为了研究带有屏蔽层超导电缆的交流损耗,实验选取了5m BSCCO电缆作为样品,通过电测法评价其交流损耗,并将测量结果与热测法和数值分析法的结果进行对比讨论。此次热测法测量的是100m BSCCO电缆在75.6K和66.6K下的总交流损耗。理论研究中利用直线多边形模型和绕制圆柱形模型计算交流损耗。实验结果表明,热测法和电测法归一化的总交流损耗值是一致的。电测法测量出的总交流损耗和导体层交流损耗分别与对应的数值分析计算结果相吻合。其中绕制圆柱形模型的计算结果更接近电测法结果,说明带材的绕制结构比多边形结构对交流损耗的影响更为重要。The experiments selected a 5m BSCCO cable sample in order to study the AC loss of the superconducting cable with an HTS shield. The experiments electrically evaluated its AC loss and the measurement results compared with the results of calorimetry and numerical analysis. The calorimetry testd total AC loss of the 100m BSCCO cable at 75.6K and 66.6K,respec- tively. The study used the non - twisted polygon and the twisted cylinder model to calculate AC loss in theory. The experimental results show that normalized total AC losses of the electrical and calorimetry are consistent. The total AC loss and conductor loss by electrical are similar with the results of numerical analysis. The electrical results agree better with those calculated from the twisted cylinder model, this means that the effect of the wire＇ s twist on the AC loss of a cable is more important than the polygon.

关 键 词：交流损耗 电测法评价 导体层引线 屏蔽层引线 数值分析 

分 类 号：TM26[一般工业技术—材料科学与工程]