ANALYSIS OF PMLSM USING 3-DIMENSIONAL EQUIVALENT MAGNETIC-CIRCUIT NETWORK METHOD

This paper presents characteristics of a permanent magnet linear synch ronous motor (PMLSM) considering lateral leakage flux and lateral disp lacement, In order to analyze the PMLSM with large air gap and finite width, A new three dimensional equivalent magnetic circuit network met hod (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 ta ke nonlinear magnetic phenomenon into account, which results from usin g the distributed magnetic circuit parameter, permeance, The analysis considering lateral flux and lateral displacement in the PMLSM which i s problematic in 3D is performed using 3D EMC and is compared with the experimental value.