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Flux-based modeling of inductive shield-type high-temperature superconducting fault current limiter for power networks

Hekmati, A ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1109/TASC.2011.2138137
  3. Abstract:
  4. Distributed power generation and the ever-growing load demand have caused fault current levels to exceed the nominal rating of the power system devices, and fault current limiters are more needed. Superconducting fault current limiter (SFCL) forms an important category of current limiters. In this paper, a novel flux-based model for the inductive shield-type high-temperature SFCL is developed based on the Bean model. This model is employed to simulate the SFCL performance in a sample circuit. Utilizing the model, the signal characterization of the limited current is determined. A prototype laboratory scale SFCL has been fabricated with superconducting rings. Yttrium barium copper oxide powders have been used for superconducting ring production. The critical current density of fabricated rings has been measured with an innovative method based on application of a magnet device. The fabricated SFCL has been tested in a circuit by applying different types of faults. The related experimental results are recorded and compared with the model results. The results obtained based on the modeling shows full compatibility with the experimental results
  5. Keywords:
  6. High temperature ; Inductive shield type ; Modeling ; Superconducting fault current limiter ; Bean models ; Fault current limiter ; High temperature superconducting ; Innovative method ; Laboratory scale ; Load demand ; Model results ; Power networks ; Signal characterization ; Superconducting fault current limiters ; Superconducting rings ; Barium ; Barium compounds ; Distributed power generation ; Fabrication ; High temperature superconductors ; Limiters ; Superconducting devices ; Superconducting electric lines ; Superconductivity ; Yttrium ; Yttrium oxide ; Electric fault currents
  7. Source: IEEE Transactions on Applied Superconductivity ; Volume 21, Issue 4 , 2011 , Pages 3458-3464 ; 10518223 (ISSN)
  8. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5756224