Winding loss calculation with multiple windings, arbitrary waveforms, and two-dimensional field geometry

Author

Sullivan, Charles R.

Author_Institution

Thayer Sch. of Eng., Dartmouth Coll., Hanover, NH, USA

Volume

3

fYear

1999

fDate

1999

Firstpage

2093

Abstract

A method for calculating eddy-current (proximity-effect) losses in transformer and inductor windings is introduced. The new method is capable of analyzing losses due to two- and three-dimensional field effects in multiple windings with arbitrary waveforms in each winding. It uses a simple set of numerical magnetostatic field calculations to derive a matrix describing the transformer or inductor. This is combined with a second matrix calculated from derivatives of winding currents to computer total AC loss. Experiments show the method is accurate for coils that are not in or close to self-resonance

Keywords

eddy current losses; magnetic fields; power transformers; transformer windings; arbitrary waveforms; coils; eddy current losses; field effects; multiple windings; numerical magnetostatic field calculations; proximity effect; self-resonance; total AC loss; two-dimensional field geometry; winding currents; winding loss calculation; Coils; Conductors; Eddy currents; Educational institutions; Electromagnetic analysis; Geometry; Inductors; Magnetic analysis; Magnetostatic waves; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE

Conference_Location

Phoenix, AZ

ISSN

0197-2618

Print_ISBN

0-7803-5589-X

Type

conf

DOI

10.1109/IAS.1999.806024

Filename

806024