Analysis of stability and quench in HTS devices—New approaches


Vysotsky, V.S. and Sytnikov, V.E. and Rakhmanov, A.L. and Ilyin, Y. (2006) Analysis of stability and quench in HTS devices—New approaches. Fusion Engineering and Design, 81 (20-22). pp. 2417-2424. ISSN 0920-3796

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Abstract:R&D of HTS devices are in their full steam—more magnets and devices are developed with larger sizes. But analysis of their stability and quench was still old fashioned, based on normal zone determination, analysis of its appearance and propagation. Some peculiarities of HTS make this traditional, quite impractical and inconvenient approach to consideration of HTS devices stability and quench development using normal zone origination and propagation analysis. The novel approaches were developed that consider the HTS device as a cooled medium with non-linear parameters with no mentioning of “superconductivity” in the analysis. The approach showed its effectiveness and convenience to analyze the stability and quench development in HTS devices. In this paper the analysis of difference between HTS and LTS quench, dependent on index n and specific heat comparison, is followed by the short approach descriptions and by the consequences from it for the HTS devices design. The further development of the method is presented for the analysis of long HTS objects where “blow-up” regimes may happen. This is important for design and analysis of HTS power cables operations under overloading conditions
Item Type:Article
Additional information:Proceedings of the Fifteenth International toki Conference on "Fusion and Advanced Technology" - ITC-15 SI
Copyright:© 2006 Elsevier B.V
Science and Technology (TNW)
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