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High-Frequency Modeling of a Three-Winding Power Transformer Using Sweep Frequency Response Analysis

Authors :
Yeunggurl Yoon
Yongju Son
Jintae Cho
SuHyeong Jang
Young-Geun Kim
Sungyun Choi
Source :
Energies, Vol 14, Iss 13, p 4009 (2021)
Publication Year :
2021
Publisher :
MDPI AG, 2021.

Abstract

A power transformer is an essential device for stable and reliable power transfer to customers. Therefore, accurate modeling of transformers is required for simulation-based analysis with the model. The paper proposes an efficient and straightforward parameter estimation of power transformers based on sweep frequency response analysis (SFRA) test data. The method first develops a transformer model consisting of repetitive RLC sections and mutual inductances and then aligns the simulated SFRA curve with the measured one by adjusting parameters. Note that this adjustment is based on individual parameter impacts on the SFRA curve. After aligning the two curves, the final transformer model can be obtained. In this paper, actual single-phase, three-winding transformer model parameters were estimated based on field SFRA data, showing that SFRA curves simulated from the estimated model are consistent with the measured data.

Details

Language :
English
ISSN :
19961073
Volume :
14
Issue :
13
Database :
Directory of Open Access Journals
Journal :
Energies
Publication Type :
Academic Journal
Accession number :
edsdoj.9a32477e39b84941b83a87c255c9227b
Document Type :
article
Full Text :
https://doi.org/10.3390/en14134009