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Convergence investigation of finite element fixed-point techniques applied to 3D nonlinear periodic eddy current problems involving voltage-driven coils
Two algorithms for the implementation of fixed-point techniques applied to the solution of three-dimensional nonlinear periodic eddy current problems with voltage excited coils are compared with respect to their convergence properties. The difference is in the treatment of the equations of the voltage constraint during the fixed-point iterations. The investigations are carried out on a transformer model.