Calculation of Self- and Mutual Inductances of Power Transformers Using a 3D Modified Magnetostatic Integral Equation Approach (CROSBI ID 656207)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Trkulja, Bojan ; Štih, Željko ; Župan, Tomislav
engleski
Calculation of Self- and Mutual Inductances of Power Transformers Using a 3D Modified Magnetostatic Integral Equation Approach
This work presents a novel three-dimensional calculation of self- and mutual inductances of a power transformer, based on a 3D magnetostatic integral equations approach and point matching. Influence of a ferromagnetic core is modeled with a constant magnetization over an element. In order to avoid the well-known cancellation error in calculation of the magnetic field inside the closed ferromagnetic core of a transformer, an additional line integral equation of magnetic field in a closed path, which is explicitly enforced to match magnetomotive force, is appended to the procedure. Overdetermined system of linear equations is assembled by point matching and solved by the least squares method. Results of the calculation for high voltage windings of a power transformer are in good agreement with results obtained by commercial FEM package Ansys Maxwell.
power transformer, inductances, integral equations
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Podaci o prilogu
22-25.
2017.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of ELECO 2017 10th International Conference on Electrical and Electronics Engineering
Bursa: EMO: The Chamber of Electrical Engineers, Bursa, Turkey
Podaci o skupu
ELECO 2017 10th International Conference on Electrical and Electronics Engineering
predavanje
30.11.2017-02.12.2017
Bursa, Turska