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Multi-scale computations of parameters of transformer windings at high frequencies. Part II

Alexander Podoltsev ; Nilanga Abeywickrama (Institutionen för material- och tillverkningsteknik, Högspänningsteknik) ; Yuriy Serdyuk (Institutionen för material- och tillverkningsteknik, Högspänningsteknik) ; Stanislaw Gubanski (Institutionen för material- och tillverkningsteknik, Högspänningsteknik)
IEEE Transactions on Magnetics (0018-9464). Vol. 43 (2007), 12, p. 4076 - 4082 .
[Artikel, refereegranskad vetenskaplig]

This part of the paper focuses on implementation of hierarchical multi-scale approach for modeling high frequency electromagnetic processes in power transformers. A large-scale 3D computer model for calculating magnetic fields in a transformer and evaluating effective parameters (inductance and resistance) of its windings and losses is presented. The model accounts for complex, anisotropic and frequency-dependent effective diamagnetic properties of the windings, which were obtained by solving small-scale 2D field problems as described in Part I of this paper. Results of the computations performed for a test transformer are analyzed in the frequency range 10 Hz – 10 MHz. Effects of windings conditions (open and short-circuited) and their location on the transformer core are discussed.

Nyckelord: Effective diamagnetic property, finite element method, high frequency modeling, multi-scale analysis, power transformer, transformer winding

Denna post skapades 2007-11-19. Senast ändrad 2015-02-11.
CPL Pubid: 61924


Institutioner (Chalmers)

Institutionen för material- och tillverkningsteknik, Högspänningsteknik



Chalmers infrastruktur