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Analysis of competing topologies of linear induction machines for high-speed material transport systems

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3 Author(s)
Jansen, P.L. ; MK Rail Corp., Boise, ID ; Long-Jang Li ; Lorenz, R.D.

This paper investigates longitudinal and transverse flux linear motor topologies for very high acceleration rate (3-4 g), and high speed (120 km/h), material transport systems which have significant technical and economic potential, in flexible manufacturing environments. The general topology under consideration is a double-sided, short-moving-secondary/long-fixed-primary, linear induction motor (LIM). The transport system requirements place severe demands upon the machine topology. The orientation of the magnetic flux (i.e., longitudinal versus transverse) has a significant impact upon these concerns and is thus a major analytical focus of this paper. A hybrid system topology consisting of a longitudinal-flux orientation within straight sections and a transverse-flux orientation within curvilinear sections appears to offer the best of both topologies. The intended contribution of this paper is a detailed comparison of LIM topologies leading to a better design selection for very high performance systems

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Industry Applications, IEEE Transactions on  (Volume:31 ,  Issue: 4 )