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3-D transient eddy-current simulations using FI2TD schemes with variable time-step selection

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3 Author(s)
Clemens, M. ; Technische Univ. Darmstadt, Germany ; Wilke, M. ; Weiland, T.

A variable step size time integration method is used for transient eddy-current problems within the framework of finite integration implicit time-domain (FI2TD) formulations. The time-step selection is based on embedded Runge-Kutta methods, which provide an error with the difference of the two solutions of different order. This error allows a prediction of the next time step, for which different types of controller strategies are compared. The accuracy and efficiency of the method is investigated with various numerical examples

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Magnetics, IEEE Transactions on  (Volume:38 ,  Issue: 2 )