Calculation of Transformer Core Loss Based on Finite Element Coupling Algorithm

Abstract

Abstract: In order to accurately calculate the deducting transformer core loss, on the basis of analysis on traditional finite element method and Steinmetz method, an edge-nodal coupled $E-\psi$ method was proposed to calculate the High Power High Frequency High Voltage transformer core loss. Taking a 20 kHz, 50 kV, 60 kW transformer for example, the 3D model was established to calculate the transformer core loss. By comparing the measured data of transformer core loss with the figures calculated by edge-nodal coupled $E-\psi$ method, NFEM, EFEM and Steinmetz method, the comparison results show that: the edge-nodal coupled $E-\psi$ method has higher accuracy than results calculated by Steinmetz model, edge finite element method and node finite element method.

Key words: edge-nodal coupled method, high-frequency transformer, core loss, $E-\psi$ method

CLC Number:

TP391.9

Wang Yongqiang, Zheng Zhihong, Ouyang Baolong, Li Jianfang. Calculation of Transformer Core Loss Based on Finite Element Coupling Algorithm[J]. Journal of System Simulation, 2016, 28(8): 1757-1763.

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