Invention Application
WO2011091256A2 SUPERCONDUCTING FAULT CURRENT-LIMITER WITH VARIABLE SHUNT IMPEDANCE
审中-公开
超导故障电流限制与可变分流阻抗
- Patent Title: SUPERCONDUCTING FAULT CURRENT-LIMITER WITH VARIABLE SHUNT IMPEDANCE
- Patent Title (中): 超导故障电流限制与可变分流阻抗
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Application No.: PCT/US2011/022063Application Date: 2011-01-21
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Publication No.: WO2011091256A2Publication Date: 2011-07-28
- Inventor: LLAMBES, Juan Carlos H. , XIONG, Xuming
- Applicant: SUPERPOWER, INC. , LLAMBES, Juan Carlos H. , XIONG, Xuming
- Applicant Address: A Subsidiary of Royal Philips Electronics 450 Duane Avenue Schenectady, New York 12304 US
- Assignee: SUPERPOWER, INC.,LLAMBES, Juan Carlos H.,XIONG, Xuming
- Current Assignee: SUPERPOWER, INC.,LLAMBES, Juan Carlos H.,XIONG, Xuming
- Current Assignee Address: A Subsidiary of Royal Philips Electronics 450 Duane Avenue Schenectady, New York 12304 US
- Agency: RADIGAN, Kevin P.
- Priority: US12/691,325 20100121
- Main IPC: H02H7/00
- IPC: H02H7/00
Abstract:
A superconducting fault current-limiter is provided, including a superconducting element configured to resistively or inductively limit a fault current, and one or more variable-impedance shunts electrically coupled in parallel with the superconducting element. The variable-impedance shunt(s) is configured to present a first impedance during a superconducting state of the superconducting element and a second impedance during a normal resistive state of the superconducting element. The superconducting element transitions from the superconducting state to the normal resistive state responsive to the fault current, and responsive thereto, the variable-impedance shunt(s) transitions from the first to the second impedance. The second impedance of the variable-impedance shunt(s) is a lower impedance than the first impedance, which facilitates current flow through the variable-impedance shunt(s) during a recovery transition of the superconducting element from the normal resistive state to the superconducting state, and thus, facilitates recovery of the superconducting element under load.
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