<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The paper introduces a theoretical concept of a shielding for horizontal yokes for measurements of rotational power loss and other rotational and two-dimensional properties. Apart from horizontal parts, the shielding relies on vertical pieces distributed uniformly around the sample circumference, symmetrically on both sides. The simulations in 2D and 3D FEM show significant improvement in reduction of H perpendicular to the sample surface (H<sub>z</sub>). The gradient of the tangential H is reduced so that the extrapolation of values towards the surface might be no longer required. There is also an added benefit that the required magnetomotive force is significantly lower (20-70%) for achieving the same B in the sample, as compared to the previously used simple horizontal shields.</p></abstract>

The paper introduces a theoretical concept of a shielding for horizontal yokes for measurements of rotational power loss and other rotational and two-dimensional properties. Apart from horizontal parts, the shielding relies on vertical pieces distributed uniformly around the sample circumference, symmetrically on both sides. The simulations in 2D and 3D FEM show significant improvement in reduction of H perpendicular to the sample surface (Hz). The gradient of the tangential H is reduced so that the extrapolation of values towards the surface might be no longer required. There is also an added benefit that the required magnetomotive force is significantly lower (20-70%) for achieving the same B in the sample, as compared to the previously used simple horizontal shields.

Theoretical concept and FEM simulations of improved shielding for round horizontal yokes for rotational power loss measurement

Journal of Electrical Engineering

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

The paper introduces a theoretical concept of a shielding for horizontal yokes for measurements of rotational power loss and other rotational and...

Theoretical concept and FEM simulations of improved shielding for round horizontal yokes for rotational power loss measurement

Published Online: Sep 13, 2017

Page range: 267 - 273

Received: Mar 31, 2017

DOI: https://doi.org/10.1515/jee-2017-0038

Keywords
2D FEM, 3D FEM, rotational power loss, magnetic shielding

© Faculty of Electrical Engineering and Information Technology, Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Theoretical concept and FEM simulations of improved shielding for round horizontal yokes for rotational power loss measurement

Published Online: Sep 13, 2017

Page range: 267 - 273

Received: Mar 31, 2017

DOI: https://doi.org/10.1515/jee-2017-0038

Keywords2D FEM, 3D FEM, rotational power loss, magnetic shielding

© Faculty of Electrical Engineering and Information Technology, Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
2D FEM, 3D FEM, rotational power loss, magnetic shielding