The detent force of permanent magnet linear synchronous motor (PMLSM) can increase the thrust ripple. This paper presents a PMLSM multi-objective optimization strategy based on support vector machine (SVM) and particle swarm algorithm (PSO). Under the premise of ensuring thrust, the detent force of PMLSM is reduced, thereby achieving the purpose of reducing thrust ripple. The simulation results verify the effectiveness of the method.

PMLSM， detent force， SVM， PSO.