Conveners
Sat-Af-Spe1 - [Special Session] High Current HTS Cables for Fusion and Beyond
- Luigi Muzzi
- Charlie Sanabria (Commonwealth Fusion Systems)
The quest to produce energy from fusion power with magnetic confinement follows two main lines of research and development, as far as the generation of the magnetic field is concerned. On the one hand, several national and international roadmaps to fusion rely on tokamak designs obtained scaling up ITER, i.e. based on low temperature superconducting (LTS) magnets. The use of high temperature...
SPARC is a compact, high-field tokamak based on high temperature superconductor (HTS) magnets developed by Commonwealth Fusion Systems and the Massachusetts Institute of Technology. This research explores the mechanical and electromagnetic behavior of SPARC’s cable-based magnet systems, namely the Central Solenoid (CS), the Poloidal Field Coils (PF), and the feeder (FEED) systems. Our studies...
The High-Temperature Superconducting (HTS) magnet is being developed for the fusion reactor magnets. One of the options for the large-current HTS conductor is a simple stacking type in which REBCO tapes are stacked without twisting or transposing.
The Stacked Tapes Assembled in Rigid Structure (STARS) conductor has been developed at the National Institute for Fusion Science (NIFS) since...
The ENEA Superconductivity Laboratory, in collaboration with the industrial partner TRATOS Cavi, is continuing the development activity of the high-current / high-field SECAS Cable-in-Conduit conductor, based on stacked REBCO tapes and a segmented, sector-shaped Cu former. The test outcome of various prototypes, carried out at 77 K and self-field in the previous years, have clarified important...
Rare Earth-Barium-Copper-Oxide (REBCO) High-Temperature superconductor (HTS) exhibits high-current performance in high magnetic fields. Various cabling methods for REBCO tapes have been developed, including Roebel Assembled Coated Conductor (RACC), Stacked Tapes Assembled in Rigid Structure (STARS), Conductor-On-Round Core (CORC®), Twisted Stacked-Tape Cable (TSTC), and a few other...
REBCO CC (Rare-earth barium copper oxide coated conductors) are the best candidate materials for superconducting TORT (tapes on round tube) cables and high-field magnets due to their excellent mechanical strength, high current-carrying capacity, and magnetic strength. It is currently known that the AC (alternating current) loss can be decreased when TORT cables are made using REBCO...
As the high critical current at high field, the representative second-generation high-temperature superconductor (2G HTS) ReBCO serves as a good candidate for future fusion devices, i.e. the Chinese fusion engineering test reactor (CFETR), the Demonstration Power Station (DEMO) with magnet field higher than 15T. The main goal of CFETR is to build a fusion engineering tokamak reactor with a...
It has been widely recognized that compact fusion machines that take advantage of high-temperature superconductors (HTS), which allow magnets to operate at relatively high magnetic fields and at temperatures that won’t require liquid helium cooling, have the potential to significantly reduce the timeline towards net fusion energy production. HTS also may enable demountable toroidal field (TF)...
