추력리플 보상을 통한 영구자석형 선형 동기전동기의 제어특성 향상

Improvement of Control Characteristics of Permanent Magnet Linear Synchronous Motor by Compensation of Thrust Ripple

In this paper, a control method based on finite element analysis is presented to reduce the thrust ripple of the permanent magnet linear synchronous motor (PMLSM). In the control method, additional compensation current is added to the conventional control current according to the position of mover. The exact value of the compensation current is calculated from finite element analysis. To conform the validity of the presented method, a test set is built and experiments are performed.