高温超导体的交流损耗计算机仿真分析  

SIMULATION ANALYSIS OF AC LOSS OF HIGH-TEMPERATURE SUPERCONDUCTOR

作　　者：刘宏伟[1,2] 曹彬[3] 李光熹[1,2] 

机构地区：[1]华北电力大学新能源电力系统国家重点实验室,北京102206 [2]高电压技术与电磁兼容北京市重点实验室,北京102206 [3]华北电力大学电气与电子工程学院,北京102206

出　　处：《低温物理学报》2015年第3期191-194,共4页Low Temperature Physical Letters

基　　金：国家自然科学基金(批准号:51207053)资助的课题~~

摘　　要：高温超导体的交流损耗直接关系高温超导器件的运行成本和稳定性.交流损耗的测量与计算,以及交流损耗的降低一直是目前需要解决的问题之一.本文应用有限元软件Comsol Multiphysics基于Maxwell方程和高温超导体的E^J指数特性仿真分析了YBCO超导体在自场和垂直超导体表面的交流背景磁场下的交流损耗,通过与理论值和实验结果比较,验证了该仿真模型的有效性与合理性.AC loss of high-temperature superconductor is directly related to operating cost and stability of hightemperature superconducting equipments.The measurement,calculation and diminution of as loss have been always one of the most important problems that need to be solved.This computation was done at self field and external ac magnetic field perpendicular to the YBCO tape using COMSOL MUTIPHYSICS finite-element method software based on Maxwell equations and E^Jpower law.The effectiveness and rationality of simulation model were verified after comparison with theoretical and experimental results.

关 键 词：高温超导体 交流损耗 有限元分析 

分 类 号：TM26[一般工业技术—材料科学与工程]