Jin Hur, Sang-Baeck Yoon, Dong-Yoon, Hwang and Dong-Seok Hyun, "Analysis of PMLSM Using Three Dimensional Equivalent Magnetic Circuit Network Method", IEEE Transactions on Magnetics, Vol. 33, No. 5, pp. 4143-4145, November 1997.

Abstract 

 This paper presents characteristics of a permanent magnet linear synchronous motor

(PMLSM) considering lateral leakage flux and lateral displacement. In order to analyze

the PMLSM with large air gap and finite width, A new three dimensional equivalent

magnetic circuit network method (3D EMC) is introduced, which supplements the

magnetic equivalent circuit by using numerical techniques. It can model flux ripple

three-dimensionally by the teeth and slot structure of the PMLSM, and can take nonlinear

magnetic phenomenon into account, which results from using the distributed magnetic

circuit parameter, permeance. The analysis considering lateral flux and lateral displacement

in the PMLSM which is problematic in 3D is performed using 3D EMC and is compared

with the experimental value.