Consideration of ferromagnetic anisotropy in electrical machines built of segmented silicon steel sheets

Müller, Fabian; Bavendiek, Gregor; Leuning, Nora; Schauerte, Benedikt; Hameyer, Kay

doi:10.1049/cp.2019.0115

Cited by 3 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(1) As the anisotropic character of the material is taken into account, the isotropic scalar PAM equation 1is extended into a two-dimensional vector hysteresis model [14]. That means the H(B) has a direction dependency and it can 2.…”

Section: Pammentioning

confidence: 99%

Analysis of vector hysteresis models in comparison to anhysteretic magnetization model

Xiao

Müller

Bavendiek

et al. 2020

Eur. Phys. J. Appl. Phys.

View full text Add to dashboard Cite

The design of electrical machines and magnetic actuators require accurate models to represent hysteresis effects in ferromagnetic materials. The magnetic nonlinearity of the iron core is usually considered by an anhysteretic magnetization curve. With this assumption, hysteresis effects in the field computation are completely neglected. This paper presents a comparative study of different hysteresis models, particularly Pragmatic Algebraic Model (PAM) and vector stop model, with regard to a vector anhysteretic anisotropic model. The PAM turns out to be an efficient model considering eddy currents effect. The multi cells stop model relies on a consistent thermodynamic formulation, whose dissipation corresponds to a dry friction-like element. Both models implement a constitutive relationship, in which the magnetic flux density vector as independent input and magnetic eld strength as output. This relationship allows integrating directly in FE with vector magnetic potential formulation. With a rotational single sheet tester (RSST), various tests for a sample of material FeSi24-50A (FeSi) with a silicon proportion of 2.4 wt% can be proceeded under the application of relevant eld distribution. The obtained measured data are applied to parameterize and validate the models. Following numerical experiments the results are compared with those obtained by means of an anhysteretic anisotropic model.

show abstract

Section: Pammentioning

confidence: 99%

Analysis of vector hysteresis models in comparison to anhysteretic magnetization model

Xiao

Müller

Bavendiek

et al. 2020

Eur. Phys. J. Appl. Phys.

View full text Add to dashboard Cite

show abstract

“…To circumvent these limits such as the lag of angular information or the huge measurement effort, we use the opportunity to represent anisotropy directly from the measurements into a condensed magnetisation surface [17][18][19]. If no RSST is available, the measurements can also be done in an SST, with the limitation of neglecting the phase lag between H and B [17].…”

Section: Measurement-based Materials Representationmentioning

confidence: 99%

“…Considering the strong non-linear behaviour of the ferromagnetic material in the rotor and stator of the machine, a non-linear iteration scheme must be employed. A widely implemented and established approach is the Newton method [19,[22][23][24][25]. Starting from a first linear solving of (6), it is applied by linearising (6) in the resulting point by a first-order Taylor approximation.…”

Section: Magnetostatic-field Calculationmentioning

confidence: 99%