This paper presents an extended finite element based model approach for permanent magnet synchronous machines considering dynamic eccentricity effects of the rotor. This includes additional displacement forces acting on rotor and stator as well as the influence of rotor eccentricity to the machine torque and the back electromotive force. Furthermore, the work flow for this model is shown.
Purpose -The aim of the paper is to explain and clarify the pre-processing for a finite element based wound rotor induction machine model. Design/methodology/approach -The paper presents two algorithms. The first one speeds up the FE-simulations by changing the input parameter permutation scheme only. The second algorithm speeds up the quint-cubic spline parameter calculation by utilizing the continuity conditions between adjacent segments. Findings -The paper provides comparisons of the calculation cost to show the advantages of the presented algorithms. Originality/value -The algorithms explained in this paper allow a practical application of the finite element based model approach for a wound rotor induction machine. Therefore, this work completes the development of the finite element based wound rotor induction machine model.
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