BI-2212超导圆筒热学特性测试及有限元分析 The Thermal Characteristic Test and Finite Element Analysis of Bi-2212 High-temperature Superconductive Tube.pdfVIP

27 卷 2 期 中 国 电 机 工 程 学 报 Vol.27 No.2 Jam. 2007 2007 年1 月 Proceedings of the CSEE 2007 Chin.Soc.for Elec.Eng. 文章编号：0258-8013 (2007) 02-0099-04 中图分类号：TM725 文献标识码：A 学科分类号：47040 BI-2212超导圆筒热学特性测试及有限元分析 1 1 1 2 宗曦华 ，张喜泽，邓长胜，王金星 1. 上海电缆研究所，上海市 杨浦区 200093；2. 东北大学理学院物理系，辽宁省 沈阳市 110004 ） The Thermal Characteristic Test and Finite Element Analysis of Bi-2212 High-temperature Superconductive Tube 1 1 1 2 ZONG Xi-hua , ZHANG Xi-ze , DENG Chang-sheng , WANG Jin-xing （1. Shanghai Electric Cable Research Institute, Yangpu District, Shanghai 200093, China; 2. Northeast University, Shenyang 110004, Liaoning Province, China ） ABSTRACT: In the dynamic test of inductive high- 义。该文通过对有银皮包套的超导圆筒和没有银皮包套的超 temperature superconductive fault current limiter (HSFCL), the 导圆筒在通过大电流(大于临界电流Ic)时温度变化的测试及 Bi-2212 HTS tubes are in the magnetic flux state during the 有限元分析计算，得到了样品分别在液氮和77K 氮气中温 fault period, and the resistance arises. Because the HTS tubes 度的变化和分布。结果表明，银皮包套对超导圆筒的温升 are placed in the alternating magnetic field, so there is a large 有很大影响，超导圆筒的中心温度高于边界温度，超导圆 inductive electric current in the HTS tubes. When the resistance 筒温度的恢复时间大约为3s，与限流器动态测试中的恢复 appears in the tubes, the Joule heat will generate and the 时间相同。 temperature of the tubes will rise, which makes the impedance 关键词：高温超导故障电流限制器；超导圆筒；热学特性； of HSFCL increase constantly. So it has an important meaning 恢复时间；有限元分析 to carry on the t