Nonlinear Homogenization Technique for Saturable Soft Magnetic Composites

Bottauscio, O.; Piat, Valeria Chiadò; Chiampi, Mario; Codegone, Marco; Manzin, A.

doi:10.1109/tmag.2008.2001341

Cited by 22 publications

(16 citation statements)

References 7 publications

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“…MS theory can be applied again to study these periodic materials [15]. The method leads to the identification of equivalent electric (resistivity) and magnetic (hysteresis curve) fea tures.…”

Section: Motor Design and Electromagneticsmentioning

confidence: 99%

Review of multidisciplinary homogenization techniques applied to electric machines

Chauvicourt

Romanazzi

Howey

et al. 2016

2016 Eleventh International Conference on Ecological Vehicles and Renewable Energies (EVER)

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Cost reduction of any design process is always of interest for industries. Simulation work packages tackle this problem since they can quickly provide reliable results that permit detection of critical design issues prior to the prototype phase. A trade-off is then often made between model accuracy and computation speed. In the particular case of electric machines, homogenization techniques are used in order to keep high accuracy while running fast calculations. They are involved in multiple disciplines in which the machine performances are verified such as elec tromagnetic, mechanical, thermal and acoustic domains.This paper aims at defining whether these homogenization methods can be extended from one discipline to another by reviewing them independently of the physical domain.

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Section: Motor Design and Electromagneticsmentioning

confidence: 99%

Review of multidisciplinary homogenization techniques applied to electric machines

Chauvicourt

Romanazzi

Howey

et al. 2016

2016 Eleventh International Conference on Ecological Vehicles and Renewable Energies (EVER)

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“…The related electromagnetic problem is solved, exploiting the experimental knowledge of the average conductivity and the mean grain size, by numerical FEM approach and implementing a homogenization technique, as discussed in Refs. [26,27]. The general outcome of these calculations is that W cl (f) does contribute to W(f) in conventional Mn-Zn ferrites by little to negligible extent (being in any case irrelevant in the Ni-Zn ferrites), but for a suitable combination of large cross-sectional areas of the samples and high magnetizing frequencies.…”

Section: Experimental Highlightsmentioning

confidence: 94%

Magnetic properties of soft ferrites and amorphous ribbons up to radiofrequencies

Fiorillo

Ferrara

Coı̈sson

et al. 2010

Journal of Magnetism and Magnetic Materials

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“…Thus, for the air-gap region (9) and for the overlap region (10) where is the equivalent reluctivity of the structure. An important detail of the proposed algorithm is a suitable interpolation during calculation of the reluctivities and ; with this in mind, a method has been developed which allows these reluctivities to be established in terms of the modulus of the flux density and the angle of inclination of the vector with respect to the axis, while using the material characteristics for the angles 0 , 90 , and 60 .…”

Section: B Description Of the Methodsmentioning

confidence: 99%

“…The normal and tangential fluxes (referred to as "perpendicular" and "parallel" in the references) have been considered with appropriate modifications to the tensor of reluctances and conductances; a diagonal tensor has been used. A mathematical homogenization approach, based on the multiple scale expansion theory, for determining the nonlinear and hysteretic equivalent properties of magnetic composites has been presented in [8] and [9]. Several methods reported in literature exploit experimental methods appropriate for determining magnetically nonlinear characteristics of electromagnetic devices [10], [11].…”

Section: Introductionmentioning

confidence: 99%

Equivalent Permeability of Step-Lap Joints of Transformer Cores: Computational and Experimental Considerations

et al. 2011

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The paper develops an efficient computational method for establishing equivalent characteristics of magnetic joints of transformer cores, with special emphasis on step-lap design. By introducing an equivalent material, the method allows the real three-dimensional structure of the laminated thin sheets to be treated computationally as a two-dimensional problem and enables comparative analysis of designs. The characteristics of the equivalent material are established by minimizing the magnetic energy of the system. To verify the proposed approach, a series of experiments have been conducted. First, the anisotropic characteristics of the step-lap were established, and then space components of the flux density at specified positions measured. This enabled detailed analysis of the flux distribution in the step-lap region, in particular the way in which the flux travels between the laminations close to the air-gap steps. Encouraging correlation between the homogenized 2-D model and experiment has been observed.

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Nonlinear Homogenization Technique for Saturable Soft Magnetic Composites

Cited by 22 publications

References 7 publications

Review of multidisciplinary homogenization techniques applied to electric machines

Review of multidisciplinary homogenization techniques applied to electric machines

Magnetic properties of soft ferrites and amorphous ribbons up to radiofrequencies

Equivalent Permeability of Step-Lap Joints of Transformer Cores: Computational and Experimental Considerations

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