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Superconducting matrix fault current limiter with current-driven trigger mechanism

United States Patent

April 15, 2008
View the Complete Patent at the US Patent & Trademark Office
A modular and scalable Matrix-type Fault Current Limiter (MFCL) that functions as a "variable impedance" device in an electric power network, using components made of superconducting and non-superconducting electrically conductive materials. An inductor is connected in series with the trigger superconductor in the trigger matrix and physically surrounds the superconductor. The current surge during a fault will generate a trigger magnetic field in the series inductor to cause fast and uniform quenching of the trigger superconductor to significantly reduce burnout risk due to superconductor material non-uniformity.
Yuan; Xing (Albany, NY)
Super Power, Inc (
10/ 877,838
June 25, 2004
The U.S. government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for my the terms of Contract No. DE-FC36-03G013033 awarded by the Department of Energy.