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US 12,700,530 B2Granted
Passive quench protection techniques for non-insulated superconducting magnets
AssigneesMassachusetts Institute of Technology, Commonwealth Fusion Systems LLC
InventorsBrian Labombard, Krishna Kiran Kumar Uppalapati
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Abstract
According to some aspects, techniques are described for designing non-insulated (NI) high temperature superconductor (HTS) magnets that mitigate problems that may arise during quench initiation and propagation. Coupling the HTS material to a co-conductor along its length reduces the effective resistance of the conductive path along the HTS material when it is not superconducting, and that this leads to numerous advantages for quench mitigation.
Claims16
A magnet comprising:
- a plurality of plates arranged in a stack that includes a first plate, the first plate comprising a conducting channel on a first side of the first plate, at least part of the conducting channel being arranged in a spiral path, the conducting channel comprising a coil comprising a plurality of windings of a non-insulated wire, the non-insulated wire comprising:
- a stack of high temperature superconductor (HTS) tapes, wherein each of the HTS tapes comprises an HTS material and is surrounded by a cladding comprising a conductive material;
- a co-conductor layer comprising a conductive cap;
- and
- a layer of solder arranged between and in contact with the stack of HTS tapes and the conductive cap,
- wherein the stack of HTS tapes is arranged within the conducting channel, the layer of solder is arranged over the stack of HTS tapes within the conducting channel, and wherein the conductive cap is arranged over the stack of HTS tapes and the layer of solder in the conducting channel such that the co-conductor layer caps the stack of HTS tapes within the conducting channel.
3 more elements
Dependencies are inferred from the claim text.