{"title":"A Field-Controlled High-Temperature Superconducting Switch: Experiment and Simulation","authors":"Tianyong Gong;Loïc Quéval","doi":"10.1109/TASC.2025.3539269","DOIUrl":null,"url":null,"abstract":"The behavior of a field-controlled high-temperature superconducting (HTS) switch is investigated by experiment and simulation. The HTS switch consists of a YBCO tape placed in the air-gap of an iron-core copper-wound electromagnet. We measured the resistance of the switch for different amplitudes and frequencies of the electromagnet current, and for different HTS tape direct current transport currents. A two-dimensional electromagnetic-thermal finite element model with unidirectional coupling was developed to accurately and efficiently simulate the switch. The fabricated switch can generate an off-state resistance of 93 µΩ, meeting the requirements for certain applications, such as transformer-rectifier HTS flux pumps. The unidirectional electromagneticthermal coupling model reduces computational time by 96% compared to the bidirectional counterpart, without compromising accuracy.","PeriodicalId":13104,"journal":{"name":"IEEE Transactions on Applied Superconductivity","volume":"35 5","pages":"1-5"},"PeriodicalIF":1.8000,"publicationDate":"2025-02-06","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/10876599/","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}
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Abstract
The behavior of a field-controlled high-temperature superconducting (HTS) switch is investigated by experiment and simulation. The HTS switch consists of a YBCO tape placed in the air-gap of an iron-core copper-wound electromagnet. We measured the resistance of the switch for different amplitudes and frequencies of the electromagnet current, and for different HTS tape direct current transport currents. A two-dimensional electromagnetic-thermal finite element model with unidirectional coupling was developed to accurately and efficiently simulate the switch. The fabricated switch can generate an off-state resistance of 93 µΩ, meeting the requirements for certain applications, such as transformer-rectifier HTS flux pumps. The unidirectional electromagneticthermal coupling model reduces computational time by 96% compared to the bidirectional counterpart, without compromising accuracy.
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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