超导开关研究和应用综述  

Research summary of superconducting switch

作　　者：崔春艳[1] 雷沅忠[1] 王秋良[1] 

机构地区：[1]中国科学院应用超导重点实验室,中国科学院电工研究所,北京100190

出　　处：《低温与超导》2011年第10期33-39,共7页Cryogenics and Superconductivity

摘　　要：超导开关是实现超导磁体闭环运行的关键部件,也称为持续电流开关(PCS),使超导磁体具有极高的磁场稳定度,广泛应用于核磁共振成像(MRI)、核磁共振谱仪(NMR)、磁浮列车、超导储能系统等技术领域。文中介绍了超导开关的工作原理和结构组成,综述了用于超导磁体的三类主要超导开关的研究发展现状,比较分析了各自的特点和优势,为应用于超导磁体闭环运行的超导开关设计提供依据。Superconducting switch also known as persistent current switch （PCS） is one of the key components of the superconducting magnet in the mode of closed - loop operation with extremely high stability of the magnetic field. And the superconducting magnets with PCS have been applied in the fields such as magnetic resonance imaging （ MRI ）, nuclear magnetic reso- nance spectrometer （NMR）, magnetic levitation trains, superconducting magnetic energy storage system, and so on. The working principle and structure components of the superconducting switch were introduced. Three main types of superconducting switch and their research status were described respectively, the each characteristic and advantages were compared which could provide help for the design of the superconducting switch applied in the closed - loop superconducting magnets.

关 键 词：超导开关 超导磁体 闭环运行 持续电流开关 

分 类 号：TN624[电子电信—电路与系统]