Evaluating the impact of superconducting fault current limiters on distribution network protection schemes

Jennifer Kincaid, Ibrahim Abdulhadi, Abdullah Emhemed, Graeme M Burt

Research output: Contribution to conferencePaper

4 Citations (Scopus)

Abstract

Rising fault levels are becoming increasingly problematic in the UK distribution network, with large sections of the network operating near to its designed fault level capability. With the increase in penetration of distributed generation that is expected in the coming years, this situation is becoming more pressing. Traditional methods of dealing with the issue may not be appropriate - upgrading plant is expensive and disruptive, while network reconfiguration can compromise security of supply. Superconducting Fault Current Limiters (SFCLs) are emerging as a potential solution, with installations now taking place in several locations worldwide. The integration of an SFCL into a network involves a number of challenges, particularly concerning the coordination of protection systems. The operation of existing protection schemes may be compromised due to the increased resistance in the network during a fault (in the case of a resistive SFCL). Furthermore, the reduction in fault levels, although desirable, can have a detrimental impact on protection operating times. This paper will consider an existing medium voltage network in the UK, which incorporates distributed generation capacity. The performance of IDMT overcurrent and distance protection schemes will be examined when an SFCL is installed in this network. In particular, the increased operating time of overcurrent relays will be discussed along with grading implications. The impact on distance protection reach will also be examined. A variety of network operational scenarios including SFCL placement and fault conditions will be considered and compared. Recommendations will be made in terms of protection settings and SFCL placement in order to mitigate the aforementioned issues.
LanguageEnglish
Number of pages5
Publication statusPublished - 1 Sep 2011
Event46th InternationalUniversities' Power Engineering Conference (UPEC) - Soest, Germany
Duration: 5 Sep 2011 → …

Conference

Conference46th InternationalUniversities' Power Engineering Conference (UPEC)
CountryGermany
CitySoest
Period5/09/11 → …

Fingerprint

Superconducting fault current limiters
Electric power distribution
Distributed power generation
Electric potential

Keywords

  • circuit faults
  • fault currents
  • impedance
  • resistance
  • relays
  • substations
  • wind farms
  • circuit faults
  • relays
  • fault currents

Cite this

Kincaid, J., Abdulhadi, I., Emhemed, A., & Burt, G. M. (2011). Evaluating the impact of superconducting fault current limiters on distribution network protection schemes. Paper presented at 46th InternationalUniversities' Power Engineering Conference (UPEC) , Soest, Germany.
Kincaid, Jennifer ; Abdulhadi, Ibrahim ; Emhemed, Abdullah ; Burt, Graeme M. / Evaluating the impact of superconducting fault current limiters on distribution network protection schemes. Paper presented at 46th InternationalUniversities' Power Engineering Conference (UPEC) , Soest, Germany.5 p.
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Kincaid, J, Abdulhadi, I, Emhemed, A & Burt, GM 2011, 'Evaluating the impact of superconducting fault current limiters on distribution network protection schemes' Paper presented at 46th InternationalUniversities' Power Engineering Conference (UPEC) , Soest, Germany, 5/09/11, .

Evaluating the impact of superconducting fault current limiters on distribution network protection schemes. / Kincaid, Jennifer; Abdulhadi, Ibrahim; Emhemed, Abdullah; Burt, Graeme M.

2011. Paper presented at 46th InternationalUniversities' Power Engineering Conference (UPEC) , Soest, Germany.

Research output: Contribution to conferencePaper

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KW - impedance

KW - resistance

KW - relays

KW - substations

KW - wind farms

KW - circuit faults

KW - relays

KW - fault currents

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M3 - Paper

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Kincaid J, Abdulhadi I, Emhemed A, Burt GM. Evaluating the impact of superconducting fault current limiters on distribution network protection schemes. 2011. Paper presented at 46th InternationalUniversities' Power Engineering Conference (UPEC) , Soest, Germany.