Multi-scale computations of parameters of transformer windings at high frequencies. Part II
Journal article, 2007

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.

high frequency modeling

multi-scale analysis

power transformer

Effective diamagnetic property

finite element method

transformer winding

Author

Alexander Podoltsev

Institute of Electrodynamics of the National Academy of Sciences of Ukraine

Nilanga Abeywickrama

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Yuriy Serdyuk

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Stanislaw Gubanski

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

IEEE Transactions on Magnetics

0018-9464 (ISSN)

Vol. 43 12 4076 - 4082

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/TMAG.2007.908371

More information

Created

10/7/2017