基于ANSYS的新型结构永磁直线同步电机力性能研究

直线电机因具有高速、高精和高推力体积比等优势,在数控机床、高性能IC封装制造等领域受到越来越多的关注,然而因其结构上的原因而存在推力波动、齿槽效应和端部效应,已成为目前直线电机研究领域的重点对象。针对直线电机在端部的不连续所导致的端部效应,建立了一种新的动子结构,避免了端部效应导致的推力波动,并以有限元方法对该模型进行了分析与比较。研究结果表明,该新型结构直线电机在力性能上具有推力波动小的优点,可为直线电机结构优化提供参考。

Research of thrust characteristics about new type permanent magnetic linear synchronous motor based on ANSYS

Because of the high speed, high precision and high volume ratio of thrust,the linear motor is concemed more and more in CNC machine ＆ high performance IC package manufacturing field. Aiming at the slot effect,end effect,detent force of linear motor derived from the characteristics of the permanent magnetic linear synchronous motor （PMLSM） structure,a new structure of motor mover was built to weaken end effect derived from the discrete end structure,the advantage of weakening the thrust fluctuation was verified through finite element analysis （FEA）. The results indicate that this new type PMLSM has the characteristic of low thrust fluctuation,and provides a new possibility in the PMLSM structural optimization field.