The Concept of Cooling System for HTS Winding due to the Power Losses in Superconducting Transformer |
| G. Wojtasiewicz
Electrotechnical Institute, M. Pożaryskiego 28, 04-703 Warsaw, Poland |
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| The aim of this paper is to present the problems of cooling systems design for superconducting devices on the example of superconductor transformer. The authors have designed superconducting power transformer with primary and secondary windings wound of several parallel YBCO 2G tapes. The power losses in a superconducting transformer as well as additional losses in a superconducting tapes connected in parallel were described, too. The core of the transformer is placed in a cryostat with a room temperature bore. The proposal of contact cooling system for transformer windings as well as the conditions and parameters for achieving cryogenic work temperature for that winding were presented. The main part of cooling system are two contact cryocoolers working in closed cooling cycle. The conclusion highlights the future perspective of developed cooling method application in 2G high temperature superconducting transformers. |
DOI:10.12693/APhysPolA.135.14 PACS numbers: 74.90.+n, 84.70.+p, 84.71.-b, 85.25.-j, 85.25.Am, 85.25.Qc |