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Mechanical force optimization on superconductor element of shield-type superconducting FCLs

Hekmati, A ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1109/PEDSTC.2012.6183380
  3. Publisher: 2012
  4. Abstract:
  5. Superconducting fault current limiter (SFCL) is classified in the category of most efficient fault current limiters. Inductive shield-type SFCLs use bulk superconductor rings in their structure. At the fault occurrence, the induced current in the superconductor ring causes high mechanical forces on the ring. In the preliminary fabricated prototypes of this work, this mechanical force caused several damages to the superconductor element. Thus in this paper an analytical method is introduced to yield the main design parameters of the shield-type SFCL to ensure the sufficient mechanical withstand capability of the superconductor ring employed in this design. A prototype SFCL of this type is fabricated in this work (using the superconductor ring parameters, determined through this analytical method) to limit the fault current to about 2 A. The fabricated device is tested and no damage occurred on the superconducting ring
  6. Keywords:
  7. Superconductor ; Analytical method ; Bulk superconductors ; Design parameters ; Fabricated device ; Mechanical force ; Shield types ; Superconducting rings ; Superconductor rings ; Electric fault currents ; Fabrication ; Fault current limiters ; Mechanical engineering ; Power electronics ; Superconducting materials ; Superconductivity ; Superconducting fault current limiters
  8. Source: 2012 3rd Power Electronics and Drive Systems Technology, PEDSTC 2012, 15 February 2012 through 16 February 2012 ; February , 2012 , Pages 495-499 ; 9781467301114 (ISBN)
  9. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6183380