Title :
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
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;
Conference_Titel :
Industry Applications Conference, 1999. Thirty-Fourth IAS Annual Meeting. Conference Record of the 1999 IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-5589-X
DOI :
10.1109/IAS.1999.806024
