Finite Element Analysis of Vector Control for a Linear Induction Motor Considering Static and Dynamic End Effects

摘要

Linear induction motor has static and dynamic end effects due to its finite core length, so that per-phase impedances are asymmetric and the air gap flux distribution is distorted. Because of these points, the d-q axis equivalent circuit model considering both end effects has not been exactly completed. In this paper, the d-q axis equivalent circuit and vector control method considering both static and dynamic end effects of the LIM are proposed. As a result, it is shown that the results of the equivalent circuit analysis have a good agreement with those of the finite element analysis.