Optimal magnetic probes location for current reconstruction in multistrands superconducting cables

Author

Bruzzone, Pierluigi ; Formisano, Alessandro ; Martone, Raffaele

Author_Institution

Centre de Recherches en Phys. des Plasma-Technologie de la Fusion, Villigen, Switzerland

Volume

38

Issue

2

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

1057

Lastpage

1060

Abstract

The critical current in multistrand superconducting (SC) cables is usually lower than expected due to current imbalance among strands and early current sharing. It is thus crucial to be able to detect the current distribution in SC cables to assess their stability properties. Due to the ill-conditioning of the problem, the reconstruction accuracy may prove very sensitive to measurement noise and to the uncertainty of the numerical data. In this work, a possible allocation strategy for the magnetic probes is discussed, aimed at optimization of the reconstruction process

Keywords

critical current density (superconductivity); current distribution; magnetic sensors; multifilamentary superconductors; optimisation; probes; signal reconstruction; superconducting cables; SC cables; critical current; current distribution; current imbalance; current reconstruction; early current sharing; magnetic probes allocation strategy; measurement noise; multistrand SC cables; multistrand superconducting cables; numerical data uncertainty; optimal magnetic probes location; reconstruction accuracy; reconstruction process optimization; stability properties; Critical current; Current distribution; Current measurement; Magnetic noise; Magnetic sensors; Noise measurement; Probes; Stability; Superconducting cables; Superconducting magnets;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.996271

Filename

996271