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2014 | OriginalPaper | Chapter

The Modeling and Excitation Characteristics of the Transformer Under DC Bias

Authors : Dongwei Han, Tao Zheng, Xianqi Zhu, Huanhuan Qi

Published in: Unifying Electrical Engineering and Electronics Engineering

Publisher: Springer New York

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Abstract

In order to research the influence of DC bias on the transformer, a transformer modeling method under DC bias is proposed. Based on the JA (Jiles-Atherton) theory, the method establishes the dynamic core magnetization curves of considering hysteresis. Then the transient transformer model is built through deriving the transformer equation from unified magnetic equivalent circuit model. On the different DC bias, the model is used to simulate the core magnetization characteristics, excitation currents, and harmonic changes of the no-load transformer. The results show that the model can be an effective means to research the excitation characteristic when transformer is under DC bias.

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Metadata
Title
The Modeling and Excitation Characteristics of the Transformer Under DC Bias
Authors
Dongwei Han
Tao Zheng
Xianqi Zhu
Huanhuan Qi
Copyright Year
2014
Publisher
Springer New York
DOI
https://doi.org/10.1007/978-1-4614-4981-2_89