Time domain modeling of eddy current effects for transformer transients

Francisco de Leon; Adam Semlyen

doi:10.1109/61.180346

Time domain modeling of eddy current effects for transformer transients

Francisco de Leon, Adam Semlyen

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Eddy current effects have been included in the model of the transformer for the study of electromagnetic transients. Existing analytical formulas for the calculation of losses in the windings have been evaluated. Various equivalent circuits have been fitted to represent in the time domain the damping produced by eddy currents in the windings. A frequency dependent model has been derived for the iron core, based on the physical distribution of losses and magnetization effects. The parameters of this model are obtained by optimal discretization of the laminations. Simulations of transients have been presented to show the effects of eddy currents in the damping of transients.

Original language	English (US)
Pages (from-to)	271-280
Number of pages	10
Journal	IEEE Transactions on Power Delivery
Volume	8
Issue number	1
DOIs	https://doi.org/10.1109/61.180346
State	Published - Jan 1993

Keywords

Eddy currents
Electromagnetic transients
Transformer modeling

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1109/61.180346

Cite this

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title = "Time domain modeling of eddy current effects for transformer transients",

abstract = "Eddy current effects have been included in the model of the transformer for the study of electromagnetic transients. Existing analytical formulas for the calculation of losses in the windings have been evaluated. Various equivalent circuits have been fitted to represent in the time domain the damping produced by eddy currents in the windings. A frequency dependent model has been derived for the iron core, based on the physical distribution of losses and magnetization effects. The parameters of this model are obtained by optimal discretization of the laminations. Simulations of transients have been presented to show the effects of eddy currents in the damping of transients.",

keywords = "Eddy currents, Electromagnetic transients, Transformer modeling",

author = "{de Leon}, Francisco and Adam Semlyen",

note = "Funding Information: Financial support by the Natural Sciences and Engineering Research Council of Canada is gratefully acknowledged. The first author wishes to express his sincere gratitude to the National Council of Science and Technology of Mexico (CONACYT) and to the National Polytechnic Institute of Mexico for the financial support of his studies at the University of Toronto.",

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AU - de Leon, Francisco

AU - Semlyen, Adam

N1 - Funding Information: Financial support by the Natural Sciences and Engineering Research Council of Canada is gratefully acknowledged. The first author wishes to express his sincere gratitude to the National Council of Science and Technology of Mexico (CONACYT) and to the National Polytechnic Institute of Mexico for the financial support of his studies at the University of Toronto.

PY - 1993/1

Y1 - 1993/1

N2 - Eddy current effects have been included in the model of the transformer for the study of electromagnetic transients. Existing analytical formulas for the calculation of losses in the windings have been evaluated. Various equivalent circuits have been fitted to represent in the time domain the damping produced by eddy currents in the windings. A frequency dependent model has been derived for the iron core, based on the physical distribution of losses and magnetization effects. The parameters of this model are obtained by optimal discretization of the laminations. Simulations of transients have been presented to show the effects of eddy currents in the damping of transients.

AB - Eddy current effects have been included in the model of the transformer for the study of electromagnetic transients. Existing analytical formulas for the calculation of losses in the windings have been evaluated. Various equivalent circuits have been fitted to represent in the time domain the damping produced by eddy currents in the windings. A frequency dependent model has been derived for the iron core, based on the physical distribution of losses and magnetization effects. The parameters of this model are obtained by optimal discretization of the laminations. Simulations of transients have been presented to show the effects of eddy currents in the damping of transients.

KW - Eddy currents

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Time domain modeling of eddy current effects for transformer transients

Abstract

Keywords

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