论文信息 - 3D Eddy Current Loss Calculation in Transformer Tanks Using the Finite Element Method

3D Eddy Current Loss Calculation in Transformer Tanks Using the Finite Element Method

The authors discuss the 3-D electromagnetic modeling of a transformer to evaluate eddy current losses in the tank. To achieve this, several numerical methods are used with two 3-D field computation packages. Conventional volume elements and shell elements are used for the modeling of thin conducting regions. Surface elements are used for the modeling of conducting regions with a reduced skin depth. The results, along with several characteristics of the tank and magnetic core, are compared. The influence of the characteristics of these two components is investigated. >

[1] Alain Bossavit,et al. The "TRIFOU" Code: Solving the 3-D eddy-currents problem by using H as state variable , 1983 .

[3] J. C. Sabonnadiere,et al. Application of the impedance boundary condition in a finite element environment using the reduced potential formulation , 1991 .

[4] G. Tanneau. Surface eddy currents in 'TRIFOU' when the skin depth is thin , 1988 .

[5] S. Hoole,et al. The natural finite element formulation of the impedance boundary condition in shielding structures , 1988 .

[6] Koji Fujiwara,et al. 3D magnetic field analysis using special elements , 1990 .