Superconducting Devices for Power Engineering
T. Janowskia, B. Kondratowicz-Kucewicz a, G. Wojtasiewicz a, S. Kozak a, J. Kozak a, M. Majka a and L. Jaroszyński b
aElectrotechnical Institute, M. Pożaryskiego 28, 04-703 Warsaw, Poland
bLublin University of Technology, Nadbystrzycka 36D, 20-618 Lublin, Poland
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The paper presents the current state of research on superconducting devices for the electrical power system, i.e. transformers, fault-current limiters, and energy storages. In particular, it describes scientific achievements of the Laboratory of Superconducting Technologies of Electrotechnical Institute. The development of distributed and renewable energy sources, as well as the increasing number of receivers with low power factor will rise interest in superconducting fault-current limiters and superconducting transformers rated below 1 MVA. Previous studies were focused on the largest power transformers and highest current superconducting fault-current limiters. ReBCO coated conductors allow to build efficient superconducting AC devices. Superconducting tape of a layered structure (second generation HTS tape) enables the construction of transformer rated up to a few MVA without the usage of parallel conductors. Relatively high resistance of the tape in normal state allows to build fault-current limiters and fault-current limiting transformers. Superconducting transformers and superconducting fault-current limiters can help to increase connected power of distribution stations and thereby accelerate development of renewable energy sources.

DOI: 10.12693/APhysPolA.130.537
PACS numbers: 74.90.+n, 84.60.Ve, 84.70.+p, 84.71.-b, 84.71.Ba, 84.71.Mn, 85.25.-j, 85.25.Am, 85.25.Qc