Generalized Admittance Matrix Model of Transformers

This brief describes a new admittance matrix model to approach the behavior of transformers. The new model is simpler than the one reported in the literature and can directly be used to fill the admittance matrix without extra variables. Our results indicate that the proposed stamp can directly be u...

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Bibliographic Details
Published in2020 17th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE) pp. 1 - 4
Main Authors Sanchez-Lopez, C., Sanchez-Gaspariano, L. A.
Format Conference Proceeding
LanguageEnglish
Published IEEE 11.11.2020
Subjects
Admittance
Computational complexity
Computational modeling
controlled sources
Mathematical model
Memory management
Nodal analysis
nullor
symbolic analysis
Transfer functions
transformers
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Summary:This brief describes a new admittance matrix model to approach the behavior of transformers. The new model is simpler than the one reported in the literature and can directly be used to fill the admittance matrix without extra variables. Our results indicate that the proposed stamp can directly be used into a standard nodal analysis, obtaining a reduced and sparse system of equations. Two analysis examples are provided, showing that fully-symbolic transfer functions of electronic circuits based on transformers can be computed by using nodal analysis only. As a consequence, the computational complexity during the solution of the system of equations is reduced when recursive determinant expansion techniques are applied.
ISSN:2642-3766
DOI:10.1109/CCE50788.2020.9299179