Detailed distribution of AC loss in the NET TF coils

Author

Bottura, L. ; Minervini, J.

Author_Institution

Max Planck Inst. fuer Plasmaphys., Garching, West Germany

Volume

25

Issue

2

fYear

1989

fDate

3/1/1989 12:00:00 AM

Firstpage

1730

Lastpage

1733

Abstract

The AC loss in the NET (Next European Torus) TF (toroidal field) coil has been computed as a function of space and time using a field map of the DC toroidal field components and AC poloidal field components for three proposed conductor designs. Resolving the field B, field change ΔB, and field derivative dB/dt into components transversal and parallel to the conductors, the value of the coupling, eddy currents, and hysteresis losses was computed using a set of simplified expressions. The calculation performed on the whole coil is presented, using the distributions along a developed pancake of the instantaneous and average values of AC loss

Keywords

Tokamak devices; superconducting magnets; AC loss; AC poloidal field components; DC toroidal field components; NET TF coils; Next European Torus; average values of AC loss; conductor designs; coupling; developed pancake; eddy currents; field change; field derivative; field map; hysteresis losses; instantaneous loss; loss distribution; simplified expressions; superconducting magnets; Cable shielding; Conducting materials; Conductors; Geometry; Plasmas; Power cables; Superconducting cables; Superconducting coils; Superconducting materials; Thermal loading;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.92635

Filename

92635