AC Losses and Material Degradation Effects in a Superconducting Tape for SMES Applications

Nuno Amaro, Jano Šouc, Michal Vojenčiak, João Miguel Murta Pina, João Francisco Alves Martins, Jose Maria Ceballos, Fedor Gomory

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

Superconducting Magnetic Energy Storage (SMES) systems are one potential application of superconductivity in electric grids. The main element of such systems is a coil, made from superconducting tape. Although SMES systems work in DC conditions, due to highly dynamic working regimes required for some applications, AC currents can appear in the coil. It is then of utmost importance to verify the magnitude of these AC currents and take into account AC losses generated on the tape in the design phase of such system. To assure a proper operation, it is also necessary to know tape characteristics during the device lifetime, which in normal operation conditions can be of decades. Continuous thermal cycles and mechanical stresses to which the tape is subjected can change its characteristics, changing important quantities like critical current (IC) and n-value. It is then also necessary to evaluate tape degradation due to these conditions. A study of AC losses will be here presented, for a short sample of BSCCO tape. IC and n-value degradation due to consecutive thermal cycles will also be studied.
Original languageEnglish
Title of host publicationIFIP Advances in Information and Communication Technology
EditorsL CamarinhaMatos, N Barrento, R Mendonca
Place of PublicationHEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
PublisherSPRINGER-VERLAG BERLIN
Pages417-424
Volume423
ISBN (Print)978-3-642-54734-8; 978-3-642-54733-1
DOIs
Publication statusPublished - 2014
Event5th Doctoral Conference on Computing, Electrical and Industrial Systems (DoCEIS’14) -
Duration: 1 Jan 2014 → …

Conference

Conference5th Doctoral Conference on Computing, Electrical and Industrial Systems (DoCEIS’14)
Period1/01/14 → …

Keywords

  • AC losses
  • HTS tape degradation
  • SMES
  • Superconducting Magnetic Energy Storage

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    Amaro, N., Šouc, J., Vojenčiak, M., Pina, J. M. M., Martins, J. F. A., Ceballos, J. M., & Gomory, F. (2014). AC Losses and Material Degradation Effects in a Superconducting Tape for SMES Applications. In L. CamarinhaMatos, N. Barrento, & R. Mendonca (Eds.), IFIP Advances in Information and Communication Technology (Vol. 423, pp. 417-424). SPRINGER-VERLAG BERLIN. https://doi.org/10.1007/978-3-642-54734-8_46