Parameter Estimation of Three-Phase Transformer Models for Low-Frequency Transient Studies from Terminal Measurements

Qiong Wu, Saeed Jazebi, Francisco De Leon

Research output: Contribution to journalArticle

Abstract

This paper introduces a three-phase reversible transformer model for the study of low-frequency transients. The model topology is obtained from the direct application of the principle of duality by drawing basic circuit elements on top of the transformer frame. The model parameters are obtained from terminal and physical size measurements as well as the characteristics of the iron core. The implementation of the model is based on standard drag-and-drop circuit elements available in electric circuit simulation programs. The model is validated with inrush current and normal open circuit laboratory measurements. The main advantage of this model is that the parameters remain the same for the simulation of different operating conditions from all terminals. This is true for transients involving deep saturation, normal loading operation, or open circuit.

Original languageEnglish (US)
Article number7465764
JournalIEEE Transactions on Magnetics
Volume53
Issue number7
DOIs
StatePublished - Jul 2017

Keywords

  • Electromagnetic transients
  • low-frequency transients
  • power transformers
  • principle of duality
  • transformer modeling

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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