### Abstract

This paper concerns the local reduction of the magnetic flux density by means of magnetic shielding. Using a spatial frequency description, a 2-D semi-analytical periodic model is obtained for a coreless single-sided linear permanent magnet motor. The magnetic shield is included in the modeling using mode-matching. The obtained magnetic flux density is compared to a finite element model and is verified with measurements. The results show a reasonable agreement between the semi-analytical model and the measurements. Some large deviations occur due to the modeling assumption that the shield has a linear permeability, while the used shields are saturated. However, the semi-analytical modeling method is accurate enough for design purposes and initial calculations, especially when being aware of the possible saturation of the shield.

Original language | English |
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Title of host publication | Proceedings of the Ninth International Symposium on Linear Drives for Industry Applications (LDIA13), 7-10 July 2013, Hangzhou, China |

Pages | ID276-1/5 |

Publication status | Published - 2013 |

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## Cite this

Pluk, K. J. W., Jansen, J. W., & Lomonova, E. (2013). Magnetic shielding for coreless linear permanent magnet motors. In

*Proceedings of the Ninth International Symposium on Linear Drives for Industry Applications (LDIA13), 7-10 July 2013, Hangzhou, China*(pp. ID276-1/5)