Finite length effects study in massive iron rotors using 3D electromagnetic field computation

Ducreux, Jean‐Pierre; Nicolas, G.

doi:10.1109/20.376458

Cited by 8 publications

(5 citation statements)

References 8 publications

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“…The constructed heater has strong magnetic edge effects that need to be taken into account in the developed model. In this section, we only treat the transverse edge effect (finite width along z-direction) [13]- [17]. In the electromagnetic model previously developed, the eddy currents density had only one component according to zdirection, Fig.…”

Section: Transverse Edge Effectmentioning

confidence: 99%

A New Topology for Induction Heating System With PM Excitation: Electromagnetic Model and Experimental Validations

et al. 2015

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This paper presents a new structure of an induction heater for aluminium parallelepiped workpiece. The studied device uses a magnetic field created by a permanent magnets (PM) inductor (Halbach inductor) in which the conducting workpiece is subjected to a linear oscillatory motion with alternating velocity. An analytical electromagnetic model is developed to find the induced heating power in the workpiece. To consider the transverse edge effect, an analytical corrected model is also presented. The most important results obtained by these models are verified experimentally on a prototype. Index Terms-, analytical model, oscillatory linear motion, permanent magnet, transverse edge effect. 0018-9464 (c)

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Section: Transverse Edge Effectmentioning

confidence: 99%

A New Topology for Induction Heating System With PM Excitation: Electromagnetic Model and Experimental Validations

et al. 2015

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“…Then, and in order to take into account the edge effect along z direction, the 2D model is extended to 3D using a same method as in (Decreux and Nicolas, 1995). A corrective factor for induced heating power is determined.…”

Section: D Magnetic Analytical Modelmentioning

confidence: 99%

“…Therefore, in this paper, a solution based on the correction of the induced power density is proposed. It takes into account the edge effect along z (Figure 2), a same model is developed by (Decreux and Nicolas, 1995;Bensaidane et al, 2015). The conductive workpiece is assumed to have an infinite length along x.…”

Section: D Extension Of the 2d Magnetic Modelmentioning

confidence: 99%

“…The magnetodynamic field is then used to calculate the induced currents in the workpiece as well as the heat power density, which represents the source of thermal model. Then, in other to improve the accuracy of 2D analytical results, the developed model is extended to a three dimensional (3D) analytical model by considering the transverse edge effect in a manner very similar to (Decreux and Nicolas, 1995). Both 2D and extended to 3D magnetodynamic models are compared to 3D finite element (FE) simulations to highlight the effect of transversal finite length on heat power density.…”

Section: Introductionmentioning

confidence: 99%

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Transient quasi-3D magneto-thermal analytical solution in PM induction heating device

Abdi

Ouazir

Barakat

et al. 2020

COMPEL

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Purpose This paper aims to develop a new quasi-three dimensional (3D) analytical model devoted to the study of nonlinear transient magneto-thermal coupled problems in permanent magnet (PM) transverse flux induction heating device (TFIHD). Design/methodology/approach The presented work is based on analytical development of strongly coupled problem, including electromagnetic and thermal boundary problems. The electromagnetic problem is first solved by using the separation variables method to evaluate the induced currents in the nonmagnetic plate and the resulting power density loss distribution. The plate temperature profile is then obtained thanks to strong involvement of this magnetic model in a new analytical thermal model combining the separation of variables method and the Green’s functions transient regime analysis method. The coupled model is then used in a simulation procedure of the magneto-thermal process allowing taking into account the workpiece electrothermal nonlinear properties. The developed coupled model is validated by computing the performances of the studied PM TFIHD and comparing them to those obtained by finite element simulations. Finding An efficient transient quasi-3D magneto-thermal analytical model is developed allowing rapid analysis of PM induction heating for core heating of parallelepiped parts. The developed model also allows fast and accurate simulations of nonlinear and transient three dimensional (3D) magneto-thermal phenomena for planar induction heaters. Research limitations implications The developed quasi-3D magneto-thermal analytical model is limited to design induction heating devices of planar structure with PM inductors. Originality/value A new transient quasi-3D magneto-thermal analytical model accounts for non-linearity and edge effect and helps to fast study and fast design of linear permanent magnet induction heating device.

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“…Consequently, results dependent on these hypotheses do not reflect in detail the actual motor conditions and thus have doubtful accuracy when they are applied in the end effects measurement of the designed rotor. Other articles [22][23][24][25] obtained the correction factors by comparing the rotor losses computed by the 2-D and 3-D FEAs. Indeed, using the numeric methods is bound to achieve results with promising accuracies.…”

Section: Introductionmentioning

confidence: 99%

End Effect Equivalence in the 2-D Finite Element Analysis of a Line-Start Permanent Magnet Synchronous Motor with Hybrid Solid Rotor

Yan,

Li,

Sun

et al. 2023

Energies

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Reasonable end effect equivalence is of vital importance in the 2-D finite element analysis (FEA) for a line-start permanent magnet synchronous motor (LSPMSM) equipped with a hybrid solid rotor for improved starting and synchronous capabilities. In this work, a series of correction factors are applied to the rotor conductivity to include the end effect in the 2-D FEA model. Derivation of these correction factors completes after the separation of different torque components. A dynamic motor model of the LSPMSM is established with some parameters extracted from the 2-D FEA using the conductivity correction. Outcomes of this model exhibit good agreements with the 3-D FEA results, by which the introduced correction factors are validated to possess the acceptable precision and effectiveness.

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Finite length effects study in massive iron rotors using 3D electromagnetic field computation

Cited by 8 publications

References 8 publications

A New Topology for Induction Heating System With PM Excitation: Electromagnetic Model and Experimental Validations

A New Topology for Induction Heating System With PM Excitation: Electromagnetic Model and Experimental Validations

Transient quasi-3D magneto-thermal analytical solution in PM induction heating device

End Effect Equivalence in the 2-D Finite Element Analysis of a Line-Start Permanent Magnet Synchronous Motor with Hybrid Solid Rotor

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