3D modelling of a non-linear anisotropic lamination

Bastos, J.P.A.; Quichaud, G.

doi:10.1109/tmag.1985.1064155

Cited by 27 publications

(14 citation statements)

References 1 publication

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“…The simulation has been performed by using the non-linear Magnetostatic approach, with the only excitation in the magnetic circuit being provided by the magnets. The laminations of both stator and rotor iron cores have been taken into account in the simulations through the homogenization technique [24]- [25]. Fig.…”

Section: D Finite Element Modelingmentioning

confidence: 99%

Magnetic topology with axial flux concentration: a technique to improve permanent-magnet motor performance

Paiva

Silva

Nabeta

et al. 2017

J. Microw. Optoelectron. Electromagn. Appl.

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Section: D Finite Element Modelingmentioning

confidence: 99%

Magnetic topology with axial flux concentration: a technique to improve permanent-magnet motor performance

Paiva

Silva

Nabeta

et al. 2017

J. Microw. Optoelectron. Electromagn. Appl.

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“…The normal direction is what Maxwell calls the stacking direction. The permeability components may be specified as follows [18]:…”

Section: B Core Loss In Laminationsmentioning

confidence: 99%

Magnet and core loss in a radial flux and a transverse flux PM traction motor

Lundmark

Fard

2015

2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)

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Verified simulation models both in 2D and 3D are used to compare a radial flux machine (IPM) with a transverse flux machine (TFM) for a traction application. The analysis highlights the importance of a dense mesh and a high number of time steps when calculating core and magnet loss. It also shows the practical handling of loss modelling in 2D and 3D respectively, including a stacking factor for the core lamination and magnet segmentation, and it is recommended that you are careful when comparing losses from 2D and 3D models. The TFM is shown to have much higher magnet loss compared to the IPM although the TFM magnet design (with ring magnets) makes segmentation very effective. However, the efficiency is still favorable for the TFM, compared to the IPM due to the relatively low copper loss in the TFM ring coil.I.

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“…First, this tensor must take into account the effect of the lamination stack and the magnetic anisotropy. In this model the simplified expression (11) is considered (Bastos and Quichaud, 1985). Moreover, to take into account the effect of the eddy current loop, the diffusion equation of the magnetic field is solved in the thickness of a lamination.…”

Section: Interlaminar Short Circuit Detectionmentioning

confidence: 99%

Interlaminar short circuit detection: modeling and measurement

Müller

Romary

Bénabou

et al. 2012

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering

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Purpose -Interlaminar short circuits in turbo generator stators can lead to local damage of the iron core. The purpose of this paper is to model an interlaminar short circuit diagnosis test on an existing structure. Design/methodology/approach -This work presents the modeling of short-circuited laminations in a stator yoke of a turbo-generator. A 3D finite element model, associated to a homogenization technique, is used to calculate the short-circuit current. The diagnosis test known as El Cid has been modelled as well.Findings -Calculation results are compared with the experiment. The same tendency has been observed both in experimental and numerical results. Research limitations/implications -Additional calculations may be performed (parametric studies) in order to investigate El Cid measuring under different conditions (different material properties, fault position, size), which may lead to a better interpretation of the results. Practical implications -Modelling of short circuit diagnosis tests under different conditions may help with the interpretation of measuring results, predicting the fault size/seriousness and location. So, only the concerned parts of the stator have to be disassembled and repaired/rebuilt. Originality/value -It is not easy to model numerically a structure with a short circuit inside, since different dimensions are involved: the fault and the varnish between laminations are much smaller than the stator itself. Thus, homogenization techniques have been used to model the lamination stack region. The combination of this technique with the modelling of the El Cid test constitutes a tool to study this kind of fault and calculate its severity and location in a stator.

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3D modelling of a non-linear anisotropic lamination

Cited by 27 publications

References 1 publication

Magnetic topology with axial flux concentration: a technique to improve permanent-magnet motor performance

Magnetic topology with axial flux concentration: a technique to improve permanent-magnet motor performance

Magnet and core loss in a radial flux and a transverse flux PM traction motor

Interlaminar short circuit detection: modeling and measurement

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