A continuum model for current distribution in Rutherford cables

Author

Akhmetov, Alexander ; Bottura, Luca ; Breschi, Marco

Author_Institution

LEC Div., CERN, Geneva, Switzerland

Volume

11

Issue

1

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

2138

Lastpage

2141

Abstract

An analysis of eddy currents induced in flat Rutherford-type cables by external time dependent magnetic fields has been performed. The induced currents generate in turn a secondary magnetic field which has a longitudinal periodicity (periodic pattern). The dependence of the amplitude of the pattern on the history of the cable excitation has been investigated. The study has been carried out with two different models for the simulation of current distribution in Rutherford cables, namely a network model, based on a lumped parameters circuit and a “continuum” model, based on a distributed parameters circuit. We show the results of simulations of the current distribution in the inner cable of a short LHC dipole model in different powering conditions and compare them to experimental data

Keywords

current distribution; eddy currents; magnetic fields; superconducting cables; Rutherford cables; cable excitation; continuum model; current distribution; distributed parameters circuit; external time dependent magnetic fields; flat Rutherford-type cables; induced eddy currents analysis; longitudinal periodicity; lumped parameters circuit; periodic pattern; powering conditions; secondary magnetic field; short LHC dipole model; Cables; Circuit simulation; Current distribution; Distributed parameter circuits; Eddy currents; History; Large Hadron Collider; Magnetic analysis; Magnetic fields; Performance analysis;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.920280

Filename

920280