Advanced 3D electromagnetic transient-thermal steady coupled FEM simulation of a LV busbar of a rectifier transformer

The design of industrial rectifier transformers for use in the field of aluminum production requires the evaluation of the effects of current harmonics in the waveforms, in terms of electromagnetic fields interacting with the transformer’s constituent materials. The waveforms of the currents flowing...

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Bibliographic Details
Published inInternational journal of applied electromagnetics and mechanics Vol. 76; no. 1-2; pp. 257 - 269
Main Authors Negro, Massimo, Galdi, Roberto
Format Journal Article
LanguageEnglish
Published London, England SAGE Publications 01.09.2024
Subjects
3D
harmonics
transient
rectifier
thermal
aluminium
finite element method (FEM)
coupled
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Summary:The design of industrial rectifier transformers for use in the field of aluminum production requires the evaluation of the effects of current harmonics in the waveforms, in terms of electromagnetic fields interacting with the transformer’s constituent materials. The waveforms of the currents flowing through the windings and high-current output connections of transformers are highly distorted waveforms due to a high presence of harmonics that contribute significantly to the overall losses developed within the system causing overstress of the insulation materials. The evaluation of the electromagnetic effects of these harmonics cannot be approached by means of a time-harmonic steady-state study of the problem, but a time transient must be simulated for a more accurate evaluation.
ISSN:1383-5416
1875-8800
DOI:10.3233/JAE-230410