{"title":"固氮环境下高温超导恒流开关的实验与仿真研究","authors":"Yi Zhang;Daoyu Hu;Jitan Wu;Xuyang Liu;Kai Mao","doi":"10.1109/TASC.2024.3520937","DOIUrl":null,"url":null,"abstract":"High-temperature superconducting (HTS) persistent-current switch (PCS) is an essential device for on-board HTS magnets achieving the closed-loop operation mode. This work proposed a type of the heater-triggered HTS-PCS operated in SN\n<sub>2</sub>\n environment. The thermal structure of the HTS-PCS is introduced in detailed. The thermal characteristics including switch OFF time, switch ON time, and temperature rise of the HTS-PCS operated in SN\n<sub>2</sub>\n environment are studied via experimental tests and simulation analysis. The used simulation model is a thermal simulation model constructed based on the finite element method. The effect of the solid-solid and solid-liquid phase transitions of nitrogen has been taken into account. The effectiveness of the simulation model is verified by the experimental tests. The research results show that the HTS-PCS with ∼0.53 Ω off-resistance can be switched OFF within 5 min and switched ON within 25 min in SN\n<sub>2</sub>\n environment, and the outermost layer temperature does not exceed 65 K. This study provides useful information for the design of the HTS-PCS operated in SN\n<sub>2</sub>\n environment.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 2","pages":"1-8"},"PeriodicalIF":1.8000,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Experimental and Simulation Research on High-Temperature Superconducting Persistent-Current Switch Operated in Solid-Nitrogen Environment\",\"authors\":\"Yi Zhang;Daoyu Hu;Jitan Wu;Xuyang Liu;Kai Mao\",\"doi\":\"10.1109/TASC.2024.3520937\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"High-temperature superconducting (HTS) persistent-current switch (PCS) is an essential device for on-board HTS magnets achieving the closed-loop operation mode. This work proposed a type of the heater-triggered HTS-PCS operated in SN\\n<sub>2</sub>\\n environment. The thermal structure of the HTS-PCS is introduced in detailed. The thermal characteristics including switch OFF time, switch ON time, and temperature rise of the HTS-PCS operated in SN\\n<sub>2</sub>\\n environment are studied via experimental tests and simulation analysis. The used simulation model is a thermal simulation model constructed based on the finite element method. The effect of the solid-solid and solid-liquid phase transitions of nitrogen has been taken into account. The effectiveness of the simulation model is verified by the experimental tests. The research results show that the HTS-PCS with ∼0.53 Ω off-resistance can be switched OFF within 5 min and switched ON within 25 min in SN\\n<sub>2</sub>\\n environment, and the outermost layer temperature does not exceed 65 K. This study provides useful information for the design of the HTS-PCS operated in SN\\n<sub>2</sub>\\n environment.\",\"PeriodicalId\":13104,\"journal\":{\"name\":\"IEEE Transactions on Applied Superconductivity\",\"volume\":\"35 2\",\"pages\":\"1-8\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2024-12-20\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Transactions on Applied Superconductivity\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10811776/\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENGINEERING, ELECTRICAL & ELECTRONIC\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Applied Superconductivity","FirstCategoryId":"101","ListUrlMain":"https://ieeexplore.ieee.org/document/10811776/","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
Experimental and Simulation Research on High-Temperature Superconducting Persistent-Current Switch Operated in Solid-Nitrogen Environment
High-temperature superconducting (HTS) persistent-current switch (PCS) is an essential device for on-board HTS magnets achieving the closed-loop operation mode. This work proposed a type of the heater-triggered HTS-PCS operated in SN
2
environment. The thermal structure of the HTS-PCS is introduced in detailed. The thermal characteristics including switch OFF time, switch ON time, and temperature rise of the HTS-PCS operated in SN
2
environment are studied via experimental tests and simulation analysis. The used simulation model is a thermal simulation model constructed based on the finite element method. The effect of the solid-solid and solid-liquid phase transitions of nitrogen has been taken into account. The effectiveness of the simulation model is verified by the experimental tests. The research results show that the HTS-PCS with ∼0.53 Ω off-resistance can be switched OFF within 5 min and switched ON within 25 min in SN
2
environment, and the outermost layer temperature does not exceed 65 K. This study provides useful information for the design of the HTS-PCS operated in SN
2
environment.
期刊介绍：
IEEE Transactions on Applied Superconductivity (TAS) contains articles on the applications of superconductivity and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Large scale applications include magnets for power applications such as motors and generators, for magnetic resonance, for accelerators, and cable applications such as power transmission.
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