Transient states analysis of 3D transformer structure

K. Komeza (Institute of Electrical Machines and Transformers, Technical University of Lodz, Lodz, Poland)
H. Welfle (Institute of Electrical Machines and Transformers, Technical University of Lodz, Lodz, Poland)
S. Wiak (Institute of Electrical Machines and Transformers, Technical University of Lodz, Lodz, Poland)

Abstract

The complex geometrical structures, transient states and non‐linearity of the magnetic circuit of electromechanical converters are rather unfavorable for field calculation. A very small air gap width and different slot numbers of primary and secondary part of a converter cause big changes of the field gradients and thus demand a very fine discretization or even coupling different methods and formulations. Furthermore, these also cause scientists to look for the other more effective methods. In spite of these permanently growing possibilities of the software packages there still exists the need to look for more accurate methods for calculating the electromagnetic field in electromagnetic devices. In the paper, attention is focused on the transient states occuring in the power transformer. The solution of such a problem could allow engineers to estimate the power losses in tank walls and hot‐spots localization as well.

Keywords

Citation

Komeza, K., Welfle, H. and Wiak, S. (1998), "Transient states analysis of 3D transformer structure", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 17 No. 2, pp. 252-256. https://doi.org/10.1108/03321649810203170

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MCB UP Ltd

Copyright © 1998, MCB UP Limited

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