Development of transverse flux linear motor with permanent-magnet excitation for direct drive applications

This paper presents the development of a transverse flux linear motor (TFLM) with permanent-magnet excitation for Stocker system, which is used for transferring glasses in the liquid crystal display industry. Magnetic field is analyzed by three-dimensional equivalent magnetic circuit network method and two-dimensional finite-element analysis is used to determine the influence of the end effect of a mover on the performance of TFLM. The experimental results of a prototyped motor are in good agreement with the analysis ones. Index Terms--Direct drive, equivalent magnetic circuit network, high force density, transverse flux linear motor.