skip to main content

DOE PAGESDOE PAGES

Title: Application of active quenching of second generation wire for current limiting

Superconducting fault current limiters (SFCL's) are increasingly implemented in the power grid as a protection of substation equipment from fault currents. Resistive SFCL's are compact and light, however they are passively triggered and thus may not be sufficiently sensitive to respond to faults in the distribution grid. Here, we explore the prospect of adding an active management feature to a traditional resistive SFCL. A flexible radio-frequency coil, which is an integral part of the switching structure, acts as a triggering device. We show that the application of a short, 10 ms, burst of ac magnetic field during the fault triggers a uniform quench of the wire and significantly reduces the reaction time of the wire at low currents. The ac field burst generates a high density of normal zones, which merge into a continuous resistive region at a rate much faster than that of sparse normal zones created by the transport current alone.
Authors:
 [1] ;  [1]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
BNL-111747-2016-JA
Journal ID: ISSN 0921-4534; R&D Project: MA012MABA; KC0202050
Grant/Contract Number:
SC00112704; TM 14-010
Type:
Accepted Manuscript
Journal Name:
Physica. C, Superconductivity
Additional Journal Information:
Journal Volume: 519; Journal ID: ISSN 0921-4534
Publisher:
Elsevier
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1254804
Alternate Identifier(s):
OSTI ID: 1436366

Solovyov, Vyacheslav F., and Li, Qiang. Application of active quenching of second generation wire for current limiting. United States: N. p., Web. doi:10.1016/j.physc.2015.10.005.
Solovyov, Vyacheslav F., & Li, Qiang. Application of active quenching of second generation wire for current limiting. United States. doi:10.1016/j.physc.2015.10.005.
Solovyov, Vyacheslav F., and Li, Qiang. 2015. "Application of active quenching of second generation wire for current limiting". United States. doi:10.1016/j.physc.2015.10.005. https://www.osti.gov/servlets/purl/1254804.
@article{osti_1254804,
title = {Application of active quenching of second generation wire for current limiting},
author = {Solovyov, Vyacheslav F. and Li, Qiang},
abstractNote = {Superconducting fault current limiters (SFCL's) are increasingly implemented in the power grid as a protection of substation equipment from fault currents. Resistive SFCL's are compact and light, however they are passively triggered and thus may not be sufficiently sensitive to respond to faults in the distribution grid. Here, we explore the prospect of adding an active management feature to a traditional resistive SFCL. A flexible radio-frequency coil, which is an integral part of the switching structure, acts as a triggering device. We show that the application of a short, 10 ms, burst of ac magnetic field during the fault triggers a uniform quench of the wire and significantly reduces the reaction time of the wire at low currents. The ac field burst generates a high density of normal zones, which merge into a continuous resistive region at a rate much faster than that of sparse normal zones created by the transport current alone.},
doi = {10.1016/j.physc.2015.10.005},
journal = {Physica. C, Superconductivity},
number = ,
volume = 519,
place = {United States},
year = {2015},
month = {10}
}