A new approach to modelling dominant AC loss in HTc superconducting solenoidal windings

Author

Goddard, K.F. ; Sykulski, Jan K. ; Stoll, R.L.

Author_Institution

Dept. of Electr. Eng., Southampton Univ., UK

Volume

35

Issue

3

fYear

1999

fDate

5/1/1999 12:00:00 AM

Firstpage

1195

Lastpage

1198

Abstract

The paper presents a novel method of calculating AC loss in solenoidal high temperature superconducting windings of the transformer type. Losses caused by the external magnetic field and due to transport current are modelled together and account is taken of highly nonlinear characteristics of the material. In tape conductors the loss due to the parallel field component is usually small whereas the effect of the normal field component is significant. A nonlinear 2D finite difference formulation is derived for the superconductor and linked with a linear finite element model representing the rest of the transformer and the interaction between coils

Keywords

finite difference methods; finite element analysis; high-temperature superconductors; magnetic fields; magnetic leakage; power transformers; solenoids; superconducting coils; superconducting tapes; superconducting transformers; transformer windings; HTc superconducting solenoidal windings; coils interaction; dominant AC loss monitoring; external magnetic field; highly nonlinear characteristics; linear finite element model; magnetic losses; nonlinear 2D finite difference formulation; normal field component; parallel field component; solenoidal high temperature superconducting windings; tape conductors; transformer type windings; transport current; Conducting materials; Creep; High temperature superconductors; Magnetic materials; Power generation economics; Power transformers; Superconducting coils; Superconducting films; Superconducting materials; Superconducting transmission lines;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.767163

Filename

767163