...-oriented electrical steel sheets with different orientations (w.r.t the rolling direction). From these curves they then extract for each orientation the corresponding commutation curve, so that the hysteretic behavior is simplified to a nonlinear one. Findings – The numerical simulations show strong...

...Carlos L. Antunes; Ramezan‐Ali Naghizadeh; Behrooz Vahidi; Seyed Hossein Hosseinian Purpose The purpose of this paper is to implement a simple, fast and accurate heuristic method for parameter determination of Jiles‐Atherton (JA) hysteresis model for representing magnetization in electrical steel...

...Oszkár Bíró; David A. Lowther; Piergiorgio Alotto; Markus Neumayer; Daniel Watzenig; Bernhard Brandstätter Purpose The purpose of this paper is to demonstrate an inverse problem approach for the determination of stress zones in steel plates of electrical machines. Steel plates of electrical...

... results for the case of rotating flux density (purely circular). Both results are at a frequency of 500 Hz and a peak value of the magnetic flux density equal to 1.5 T. © Emerald Group Publishing Limited 2011 Eddy currents Electrical machines Steel Loss Losses Energy loss Power loss...

... of a non‐destructive evaluation device suitable to detect long‐longitudinal volumetric flaws in hot steel bars. Design/methodology/approach The effect of the flaw is accurately and efficiently computed by solving an eddy‐current problem over an hexahedral grid which gives directly the perturbation due...

... for in the field computation. The usefulness and accuracy of the hysteresis model is demonstrated by comparing its results with these from the “traditional” empirical iron loss‐estimation method too. © Emerald Group Publishing Limited 2010 Electric machines Steel Iron Hysteresis Modelling...

...Patrick Dular; Maurizio Repetto; Oszkár Bíró; Stefan Außerhofer; Kurt Preis; Yu Chen Purpose Grain‐oriented steel has a distinctly anisotropic and nonlinear behaviour. Only in rare cases is the magnetisation curve known for directions other than the principal ones. The paper aims at providing...

...Andrezej Demenko; Krzysztof Chwastek; Jan Szczygłowski; Wiesław Wilczyński Purpose The aim of the paper is to present a simple approach to modelling minor hysteresis loops in grain‐oriented steel sheets under quasi‐static and dynamic conditions. The hysteresis phenomenon is described...

...Andrezej Demenko; Hanif Tavakoli; Dierk Bormann; David Ribbenfjärd; Göran Engdahl Purpose For efficient magnetic field calculations in electrical machines, the hysteresis and losses in laminated electrical steel must be modeled in a simple and reliable way. The purpose of this paper...

...Mauro Feliziani; Alessandro Salvini; Alessandro Toscano; Lucio Vegni; A. Belahcen; A. Arkkio Purpose The purpose of this paper is to find out how to model the effect of mechanical stresses on the magnetic properties of electrical steel used in electromagnetic devices and especially in electrical...

...Massimo Fabbri; Francesco Galante; Francesco Negrini; Eiichi Takeuchi; Takehiko Toh Electro‐magnetic stirrers, applied to the mold of a continuous caster, induces electromagnetic forces that influence the steel flow pattern modifying the casting parameters. The steel quality has been highly...

...P. Dular; J. Gyselinck; F. Henrotte; W. Legros; J. Melkebeek Two complementary 3D finite element formulations, with either the magnetic field or the magnetic vector potential as unknowns, are developed to deal with the modeling of eddy currents in electrical steel laminations. The magnetic flux...

... behaviour of both grain oriented and nonoriented electrical steel sheets. The results of numerical simulations are compared to experiment and power loss prediction is performed. © MCB UP Limited 1999 Dynamic model Hysteresis Steel This work has been performed in the frame...