110 kV高温超导电缆屏蔽层交流损耗特性研究  

Study on AC loss characteristics of shielding layers of 110 kV HTS cable

作　　者：王秀 丘明[2] 方进[1] Wang Xiu;Qiu Ming;Fang Jin(School of Electrical Engineering,Beijing Jiaotong University,Beijing 100044,China;China Electric Power Research Institute,Beijing 100192,China)

机构地区：[1]北京交通大学电气工程学院,北京100044 [2]中国电力科学研究院,北京100192

出　　处：《低温与超导》2023年第4期18-24,共7页Cryogenics and Superconductivity

基　　金：教育部基本科研业务费项目(2020JBZ114);国网浙江省电力有限公司科技项目(DGB11202105835)资助。

摘　　要：基于H方程求解了110 kV/3 kA高温超导电缆在不同工况下运行时的磁场分布和交流损耗,在此基础上分析屏蔽层感应电流的变化情况,并探究导电层和屏蔽层采用组合超导带材的可行性。结果表明,随着传输电流的增大,屏蔽层感应电流发生了畸变,电缆总体的交流损耗显著增加。当导电层采用77 K下临界电流为210 A的超导带材时,电缆可显著降低大约48%的交流损耗。The magnetic field distribution and AC loss of 110 kV/3 kA high temperature superconducting(HTS)cable un-der different operating conditions were solved based on the H equation.On this basis,the variation of the induced current in the shield layers was analyzed and the feasibility of using combined HTS tapes for the conductive and shield layers was explored.The results show that with the increase of the transmission current,the induced current in shielding layers is distorted and the overall AC loss of the HTS cable increases significantly.When superconducting tapes with a critical current of 210 A at 77 K are used for the conductive layers,the HTS cable can significantly reduce the AC loss by about 48%.

关 键 词：高温超导电缆 H方程 屏蔽层 交流损耗 

分 类 号：TM26[一般工业技术—材料科学与工程]