Hysteresis and eddy-current losses in electrical steel utilising edge degradation due to cutting effects

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Hysteresis and eddy-current losses in electrical steel utilising edge degradation due to cutting effects. / Elfgen, Silas; Rasilo, Paavo; Hameyer, Kay.

julkaisussa: International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, 2020.

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Elfgen, Silas ; Rasilo, Paavo ; Hameyer, Kay. / Hysteresis and eddy-current losses in electrical steel utilising edge degradation due to cutting effects. Julkaisussa: International Journal of Numerical Modelling: Electronic Networks, Devices and Fields. 2020.

Bibtex - Lataa

@article{1c8f7c97706749449b1a6f2b62bb4777,

title = "Hysteresis and eddy-current losses in electrical steel utilising edge degradation due to cutting effects",

abstract = "Cutting of electrical steel sheets typically deteriorates the permeability and increases the iron loss close to the cutting edges. We estimated iron losses in the cross-section of electrical steel sheets by numerically solving the 1-D and 2-D eddy-current distributions while accounting for static magnetic behaviour with a hysteresis model. The magnetization curves in the cross-section are defined using a continuous local material model, making them dependent on the distance from the cut edge by a degradation profile. Damaged and undamaged hysteresis loops were identified by measurements of different wide strips of M400-50A steel sheets. The eddy-current distributions were solved when the strips of different widths were excited with sinusoidal average flux densities at different frequencies. It was found that the cutting degradation also affects the eddy-current loss particularly around 1.0 T. The exact shape of the degradation profile was found to be less significant while the increase of excess losses is significant for the overall loss estimation.",

keywords = "cut edges, edge degradation, hysteresis model, iron losses, thin sheet model",

author = "Silas Elfgen and Paavo Rasilo and Kay Hameyer",

year = "2020",

doi = "10.1002/jnm.2781",

language = "English",

journal = "International Journal of Numerical Modelling: Electronic Networks, Devices and Fields",

issn = "0894-3370",

publisher = "Wiley",

}

RIS (suitable for import to EndNote) - Lataa

TY - JOUR

T1 - Hysteresis and eddy-current losses in electrical steel utilising edge degradation due to cutting effects

AU - Elfgen, Silas

AU - Rasilo, Paavo

AU - Hameyer, Kay

PY - 2020

Y1 - 2020

N2 - Cutting of electrical steel sheets typically deteriorates the permeability and increases the iron loss close to the cutting edges. We estimated iron losses in the cross-section of electrical steel sheets by numerically solving the 1-D and 2-D eddy-current distributions while accounting for static magnetic behaviour with a hysteresis model. The magnetization curves in the cross-section are defined using a continuous local material model, making them dependent on the distance from the cut edge by a degradation profile. Damaged and undamaged hysteresis loops were identified by measurements of different wide strips of M400-50A steel sheets. The eddy-current distributions were solved when the strips of different widths were excited with sinusoidal average flux densities at different frequencies. It was found that the cutting degradation also affects the eddy-current loss particularly around 1.0 T. The exact shape of the degradation profile was found to be less significant while the increase of excess losses is significant for the overall loss estimation.

AB - Cutting of electrical steel sheets typically deteriorates the permeability and increases the iron loss close to the cutting edges. We estimated iron losses in the cross-section of electrical steel sheets by numerically solving the 1-D and 2-D eddy-current distributions while accounting for static magnetic behaviour with a hysteresis model. The magnetization curves in the cross-section are defined using a continuous local material model, making them dependent on the distance from the cut edge by a degradation profile. Damaged and undamaged hysteresis loops were identified by measurements of different wide strips of M400-50A steel sheets. The eddy-current distributions were solved when the strips of different widths were excited with sinusoidal average flux densities at different frequencies. It was found that the cutting degradation also affects the eddy-current loss particularly around 1.0 T. The exact shape of the degradation profile was found to be less significant while the increase of excess losses is significant for the overall loss estimation.

KW - cut edges

KW - edge degradation

KW - hysteresis model

KW - iron losses

KW - thin sheet model

U2 - 10.1002/jnm.2781

DO - 10.1002/jnm.2781

M3 - Article

JO - International Journal of Numerical Modelling: Electronic Networks, Devices and Fields

JF - International Journal of Numerical Modelling: Electronic Networks, Devices and Fields

SN - 0894-3370

ER -

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