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| A Study on the Reduction of Cogging Force of Stationary Discontinuous Armature Linear Synchronous Motor Using Auxiliary Teeth |
| Journal of Magnetics, Volume 16, Number 3, 30 Sep 2011, Pages 281-287 |
Yong-Jae Kim (Dept. of Electrical Engineering, Chosun University), Kyu Myung Lee *  (Dept. of Electrical Engineering, Chosun University), Masaya Watada (Dept. of Biomedical Engineering, Tokyo City University) |
| Abstract |
The stationary discontinuous armatures that are used in permanent magnet linear synchronous motors (PMLSMs) have been proposed as a driving source for transportation systems. However, the stationary discontinuous armature PM-LSM contains the outlet edges which always exist as a result of the discontinuous arrangement of the armature. For this reason, the high alteration of the outlet edge cogging force produced between the armature’s core and the mover’s permanent magnet when a mover passes the boundary between the armature’s installation part and non-installation part has been indicated as a problem. Therefore, we have examined the outlet edge cogging force by installing the auxiliary teeth at the armature’s outlet edge in order to minimize the outlet edge cogging force generated when the armature is arranged discontinuously. Moreover, we obtained the calculation by analyzing the shape of the auxiliary teeth in which the outlet edge cogging force is minimized the most.
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| Keywords: transportation system; linear synchronous motor; outlet edge cogging force; auxiliary teeth; 2-D numerical analysis |
| DOI: http://dx.doi.org/10.4283/JMAG.2011.16.3.281 |
| Full Text: PDF |
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