永磁体尺寸对高温超导磁悬浮力的影响分析  

Analysis of the influence of permanent magnet size on high temperature superconducting magnetic suspension force

作　　者：吴爽 方进[1] Wu Shuang;Fang Jin(School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China)

机构地区：[1]北京交通大学电气工程学院,北京100044

出　　处：《低温与超导》2018年第7期38-42,共5页Cryogenics and Superconductivity

基　　金：国家自然科学基金青年基金(61205106)资助; 中国博士后科学基金(2014M552329)资助; 重庆市教委科学技术研究项目(KJ1500934)和重庆市教委科学技术研究项目(KJ120827)资助; 重庆市科委社会事业与民生保障科技创新专项(cstc2017shms A40019)资助

摘　　要：高温超导体的发展推动了磁悬浮技术的应用,而磁悬浮中磁悬浮力的控制尤为重要。在磁浮系统中永磁体用来给超导体提供磁场,因此磁悬浮力的大小与永磁体的尺寸密切相关。主要介绍磁悬浮力理论计算方法和有限元仿真模型,研究了磁悬浮力随永磁体尺寸变化的趋势,并对仿真结果进行分析同时加以实验佐证。仿真结果对高温超导块材在磁悬浮技术中的应用有参考价值,同时有助于优化材料用量。The development of high temperature superconductors has promoted the application of magnetic suspension tech- nology, and the control of magnetic suspension force in magnetic levitation is particularly important. In the maglev system, per- manent magnets are used to provide a magnetic field to the superconductor, so the magnetic suspension force is closely related to the size of the permanent magnet. This work mainly introduced the theoretical calculation method and finite element simulation model of magnetic levitation force, and studied the trend of magnetic levitation force changing with the size of permanent magnet, and the simulation results were analyzed and verified by experiments. The simulation results may have reference value for the ap- plication of HTS in magnetic suspension system, and help us to optimize material usage.

关 键 词：磁悬浮力 高温超导 有限元仿真 

分 类 号：TM26[一般工业技术—材料科学与工程]