Effect of Excitation Patterns on Both Iron Loss and Flux in Solid and Laminated Steel Configurations

In this paper, the effect of different excitation patterns on both the iron loss and flux inside solid magnetic steel plates and laminated silicon steel sheets is investigated. Some practical approaches to nonlinear and anisotropic eddy-current problems under 3-D excitation conditions are proposed, in which the usual measured loss data is not adequate within the penetration depth where the eddy currents are induced by fluxes normal to the lamination. The benchmark results based on member models of Problem 21 with new extensions are presented to validate the proposal and to observe the electromagnetic behavior of the magnetic steel under different excitation patterns. The extensions to the benchmark Problem 21 are helpful for further Testing Electromagnetic Analysis Method (TEAM) activities.