AC Loss Reduction in Round HTS Cables Achieved by Low-Cost Filamentization of Tape Conductors

Summary

This experimental study investigates AC loss reduction in round high-temperature superconducting (HTS) cables used in pulsed magnets by examining the effects of filamentization of the superconducting layer. Using short cable models containing two layers of helically laid tapes, the authors demonstrate that at magnetic field amplitudes exceeding 0.1 T, cable architecture has minimal effect on loss, but substantial magnetization loss reduction can be achieved through novel filamentized coated conductor tapes manufactured via an industrial process utilising a patterned metal substrate. The findings suggest that further optimisation of critical current and metallic layers is needed to enable effective current migration between filaments whilst minimising coupling loss.

UK applicability

This is fundamental materials science research on superconducting technology without direct application to UK agriculture, farming systems, soil health, or food production. It may inform UK industrial energy infrastructure development but falls outside the scope of Vitagri's agricultural and nutritional research focus.

Key measures

AC loss (magnetization loss and coupling loss) in round HTS cable models; hysteresis loss as a function of magnetic field amplitude; effects of cable architecture on loss at field amplitudes >0.1 T

Outcomes reported

The study measured AC loss (magnetization and coupling loss) in round high-temperature superconducting cables with various tape arrangements at different magnetic field amplitudes. Substantial reduction in magnetization loss was achieved using novel filamentized coated conductor tapes produced via an industrial process.

Topic tags