Toroidal field coil arrangement with central column having exfoliated HTS tapes and return limbs having substrated HTS tapes
US10971274B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2018 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Aug 20, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is disclosed a toroidal field coil for use in a spherical tokamak. The toroidal field coil comprises a central column and a plurality of return limbs. The central column comprises a plurality of exfoliated HTS tapes, and the return limbs comprise a plurality of substrated HTS tapes. Each exfoliated HTS tape comprises a ReBCO layer bonded to respective metal interface layers on each side of the ReBCO layer, each metal interface layer being bonded to a metal stabiliser layer. Each substrated HTS tape comprises a ReBCO layer bonded on one side to a metal interface layer and on the other side to an oxide buffer stack, the metal interface layer being bonded to a metal stabiliser layer and the oxide buffer stack being bonded to a substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.