CRAFT 100 kA超导变压器失超保护研究  

Research on quench protection of 100 kA superconducting transformer in CRAFT

作　　者：朱鑫鑫 胡燕兰 王腾 严庆 倪其才[1] Zhu Xinxin;Hu Yanlan;Wang Teng;Yan Qing;Ni Qicai(Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学院合肥物质科学研究院,合肥230026 [2]中国科学技术大学,合肥230026

出　　处：《低温与超导》2022年第10期12-19,共8页Cryogenics and Superconductivity

基　　金：《国家重大科技基础设施建设“十三·五”规划》优先部署大科学装置项目(2018-000052-73-01-001228)资助。

摘　　要：对聚变堆主机关键系统综合研究设施(CRAFT)100 kA超导变压器的初级和次级线圈分别建立了三维失超传播模型和一维失超传播模型,通过数值模拟的方法研究变压器磁体失超过程热点温度,失超电阻和电流的变化。研究表明,始失超点在初级线圈截面顶点处热点温度最高,二极管和泄放电阻均能有效地对变压器进行保护。In the paper, a three-dimensional quench propagation model and a one-dimensional quench propagation model were designed for the primary and secondary coils of the 100 kA superconducting transformer respectively, and the changes of the hotspot temperature, quench resistance and current during the quench process of the transformer magnet were studied by numerical simulation. The effect of different quench starting points on the quench process of the magnet were analyzed and compared, and the quench protection effect of diodes and dump resistor were also compared and analyzed.

关 键 词：超导变压器 失超保护 失超传播 热点温度 数值模拟 

分 类 号：TM26[一般工业技术—材料科学与工程]