This article presents a novel all-superconducting propulsion and protection system for the high-temperature superconducting (HTS) Maglev. The HTS magnet is the key component in the HTS Maglev, as it is in charge of the most crucial works, the propulsion and levitation of the train, to realize the zero-friction and ultra-high-speed just above the ground. The HTS magnet can conduct massive electric current and generate extremely high magnetic field, but the HTS magnet is also relatively venerable compared to the conventional copper magnet, regarding the strict operating conditions of temperature, magnetic field and electric current. Therefore, we proposed a new all-superconducting propulsion and protection system, introducing the superconducting fault current limiter (SFCL) and superconducting magnetic energy storage (SMES) to be equipped into the HTS Maglev, which can protect the HTS magnet, but also ensure the safety and reliability of Maglev operation. The real size HTS magnet was modeled to check the magnetic requirements of HTS Maglev and determine the specifications of other superconducting devices. Then a scaled all-superconducting protection and energy compensation system with the scaled HTS magnet, SFCL and SMES was analyzed, and some components were verified by experiments. Future plans were proposed to merge the full size all-superconducting protection and protection system into an HTS Maglev prototype.

中文翻译：

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高温超导磁悬浮新型全超导推进和保护系统：概念、实验验证和规划


本文提出了一种用于高温超导（HTS）磁悬浮列车的新型全超导推进和保护系统。高温超导磁体是高温超导磁浮的关键部件，承担着列车最关键的工作——推进和悬浮，实现零摩擦和离地超高速。高温超导磁体可以传导大量电流并产生极高的磁场，但与传统的铜磁体相比，高温超导磁体在温度、磁场和电流的严格工作条件方面也相对较旧。因此，我们提出了一种新型的全超导推进和保护系统，在高温超导磁悬浮中引入超导故障限流器（SFCL）和超导磁储能（SMES），既可以保护高温超导磁体，又可以保证高温超导磁体的安全。磁悬浮运行安全可靠。对实际尺寸的高温超导磁体进行建模，以检查高温超导磁悬浮的磁性要求并确定其他超导设备的规格。然后对由比例化高温超导磁体、SFCL和SMES组成的比例化全超导保护和能量补偿系统进行了分析，并对部分部件进行了实验验证。未来计划将全尺寸全超导保护和保护系统合并到高温超导磁悬浮原型中。