MURAL - Maynooth University Research Archive Library



    Nonlinear dynamic transformer time-domain identification for power converter applications


    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

    [img]
    Preview
    Download (576kB) | Preview


    Share your research

    Twitter Facebook LinkedIn GooglePlus Email more...



    Add this article to your Mendeley library


    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:

    Repository Staff Only(login required)

    View Item Item control page

    Downloads

    Downloads per month over past year