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 PMLSM contains the end edges which always exist as a result of the discontinuous arrangement of the armature. For this reason, the high alteration of the end edge cogging force produced between the armatures core and the movers permanent magnet when a mover passes the boundary between the armatures installation part and non-installation part has been indicated as a problem. Therefore, we have examined the end edge cogging force by installing the double-auxiliary teeth at the end edge of the armature in order to minimize the end edge cogging force generated when the armature is arranged discontinuously. This paper presents the results of 2-D numerical analysis by FEM of the cogging force exerted by the end edge.
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