Electromagnetic Modeling of Transformers in EMT-Type Software by a Circuit-Based Method

This work proposes a fully circuit-based method for modelling electrical transformers. This method not only offers the advantages of circuit-based methods and can be implemented in electromagnetic transient (EMT) type software, but it can also provide a detailed representation of transformers, compa...

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Bibliographic Details
Published in:IEEE transactions on power delivery 2022-12, Vol.37 (6), p.5402-5413
Main Authors: Pordanjani, Sadegh Rahimi, Naidjate, Mohammed, Bracikowski, Nicolas, Fratila, Mircea, Mahseredjian, Jean, Rezaei-Zare, Afshin
Format: Article
Language:English
Subjects:
Circuit faults
Circuits
Couplings
electromagnetic transients
Engineering Sciences
Finite element analysis
Finite element method
finite element method (FEM)
Integrated circuit modeling
Magnetic circuits
Magnetic flux
Magnetic properties
Mathematical models
Modelling
Representations
Software
Transformer model
Transformers
winding fault
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Description
Summary:This work proposes a fully circuit-based method for modelling electrical transformers. This method not only offers the advantages of circuit-based methods and can be implemented in electromagnetic transient (EMT) type software, but it can also provide a detailed representation of transformers, comparable to the finite element method (FEM). The proposed method enables a detailed geometrical modelling, as well as representation of magnetic flux paths and consideration of iron core saturation. It can be implemented in EMT-type software to see the effect of power networks on transformers. In addition, the proposed method can represent internal faults in transformers. The problem is constrained to a 2-D domain, which is often used in FEMs to represent the magnetic behavior of power equipment. Finite element analysis based on ANSYS Maxwell is used to verify the proposed method.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2022.3177137