Open AccessTwo‐step method for calculation of eddy current losses in a laminated transformer core
Author(s) -
Frljić Stjepan,
Trkulja Bojan
Publication year - 2020
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
ISSN - 1751-8679
DOI - 10.1049/iet-epa.2019.0860
Subject(s) - eddy current , transformer , finite element method , lamination , mechanics , enhanced data rates for gsm evolution , materials science , structural engineering , computer science , engineering , physics , voltage , electrical engineering , composite material , telecommunications , layer (electronics)
A method for calculating eddy currents and corresponding losses in a laminated transformer core using finite element method is developed. The method is based on the transformation of the 3D model into the corresponding 2D model. The 2D laminated domain coincides with the slice of the 3D laminated domain. Eddy currents are therefore considered as 2D phenomena within lamination, instead of the 1D approximation, thus taking into account the edge effects. By using the 2D mesh, the number of finite elements is drastically reduced. The validity and precision of the method are verified by comparing the results of the simulation with the results obtained using the brute force approach and with the results obtained using the homogenisation method.