Abstract

This paper makes basic examination on four models of linear PM vernier motors in order to apply them to a steel-wheel linear motor train. Their models are categorized into two types with PM arrangement. One is the motor that has the PM arrangement based on the original design of the conventional PM vernier motor, and the other is the motor with a spoke type arrangement of PMs, which we have previously proposed. Typical vernier motors have a short air gap length, but the one that is applied to the steel-wheel linear motor train requires a larger air gap length. The examinations find a result that in the motor with the conventional PM arrangement increase of the PM volume hardly contribute to increase of the thrust, but that in the motor with the PM arrangement of a spoke type has a good effect on increasing the thrust.

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