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Finite element analysis of 3-D eddy currents

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2 Author(s)
Biro, O. ; Inst. for Fundamentals & Theor. in Electr. Eng., Graz Univ. of Technol., Austria ; Preis, K.

The authors review formulations of three-dimensional (3-D) eddy current problems in terms of various magnetic and electric potentials. The differential equations and boundary conditions are formulated to include the necessary gauging conditions and thus to ensure the uniqueness of the potentials. Different sets of potentials can be used in distinct subregions, thus facilitating an economic treatment of various types of problems. A novel technique for interfacing conducting regions with an electric vector and a magnetic scalar potential to eddy-current-free regions with a magnetic vector potential is described. Finite-element solutions to several large eddy-current problems are presented

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Magnetics, IEEE Transactions on  (Volume:26 ,  Issue: 2 )