Trong Vu, T. and O'Driscoll, S. and Ringwood, John
(2014)
Nonlinear dynamic transformer time-domain
identification for power converter applications.
IEEE Transactions on Power Electronics, 29 (1).
ISSN 0885-8993
Abstract
For flyback converter applications, an accurate model
of the transformer is necessary for simulation studies, as well
as a basis for model-based controller design. In general, trans-
former modeling has either focused on the winding model, using
frequency-domain methods, or on the nonlinear core model, using
time-domain methods. Nonlinear modeling is confined to the time
domain and certain difficulties have precluded the use of time-
domain methods for winding model estimation, resulting in the
lack of integrated modeling approaches. This paper focuses on
identifying a complete nonlinear dynamic model of a 3-winding
transformer using time-domain system identification approaches.
Our study demonstrates a possible way to handle the difficulties
of working in the time domain and provides a model at least as
accurate as that obtained with the frequency response data. In ad-
dition to the parameters of the Jiles–Atherton model, which is used
to describe the nonlinear core behavior, the air-gap length is also
computed from the experimental data to enhance the core model
accuracy. The obtained transformer winding model, core model,
and full model are experimentally verified.
| Item Type: |
Article
|
| Keywords: |
Nonlinear Dynamic Transformer; Time-Domain
Identification; Power Converter; |
| Academic Unit: |
Faculty of Science and Engineering > Electronic Engineering |
| Item ID: |
6800 |
| Identification Number: |
https://doi.org/10.1109/TPEL.2013.2251006 |
| Depositing User: |
Professor John Ringwood
|
| Date Deposited: |
14 Jan 2016 15:32 |
| Journal or Publication Title: |
IEEE Transactions on Power Electronics |
| Publisher: |
IEEE |
| Refereed: |
Yes |
| URI: |
|
| Use Licence: |
This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available
here |
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