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Open AccessArticle

2D Hybrid Steady-State Magnetic Field Model for Linear Induction Motors

Department of Electrical Engineering, Electromechanics and Power Electronics, Eindhoven University of Technology, 5612 AZ Eindhoven, The Netherlands
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Math. Comput. Appl. 2019, 24(3), 74; https://doi.org/10.3390/mca24030074
Received: 29 June 2019 / Revised: 22 July 2019 / Accepted: 24 July 2019 / Published: 25 July 2019
(This article belongs to the Special Issue Mathematical Models for the Design of Electrical Machines)
This paper presents a 2D hybrid steady-state magnetic field model, capable of accurately modeling the electromagnetic behavior in a linear induction motor, including primary slotting, finite yoke length, and longitudinal end-effects by primary motion. This model integrates a complex harmonic modeling technique with a discretized magnetic equivalent circuit model. The Fourier model is applied to regions with homogeneous material properties, e.g., air regions and the track of the motor, while the magnetic equivalent circuit (MEC) approach is used for the regions containing non-homogeneous material properties, e.g., the primary of the linear induction motor (LIM). By only meshing the domains containing highly-permeable materials, the computational effort is reduced in comparison with the finite element method (FEM). The model is applied to a double-layer single-sided LIM, and the resulting thrust and normal forces show an excellent agreement with respect to finite element analysis and measurement data. View Full-Text
Keywords: linear induction motors; complex harmonic modeling; hybrid analytical modeling; 2D steady-state models linear induction motors; complex harmonic modeling; hybrid analytical modeling; 2D steady-state models
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Aleksandrov, S.R.; Overboom, T.T.; Lomonova, E.A. 2D Hybrid Steady-State Magnetic Field Model for Linear Induction Motors. Math. Comput. Appl. 2019, 24, 74.

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