Forces and parameters of permanent magnet linear synchronous machines

The determination of electromagnetic forces and parameters of permanent magnetic linear synchronous machines (PMLSM´s), based on an evaluation of electromagnetic fields, as reported earlier, is considered. Analytical techniques applied to permanent magnet rotary synchronous machines are modified and adapted to PMLSM´s. Fields were determined analytically in a single-sided PMLSM and computed results by the finite-element method were compared with those obtained experimentally in an earlier paper. A good correlation between the results were obtained by three procedures-analytical, finite-element computational method, and experimental. From these field evaluations the PMLSM parameters and performance are obtained.