CAJ | 학술논문

提出了一种应用于直线驱动数控机床的新型磁通切换永磁直线电动机.首先,给出了该电机的二维和三维拓扑结构,介绍了该直线电动机的基本工作原理,并分析了2种典型位置的磁场情况.其次,采用二维有限元的方法,对电机的磁链特性、反电动势特性、电感特性等静态特性进行了深入的研究.对2种不同铁芯结构磁通切换永磁直线电机的定位力进行了对比分析,结果表明采用E型铁芯机构可有效减少定位力.然后,基于联合能量法推导得到了电机的静态推力计算公式,采用有限元仿真对静态推力计算公式进行了验证分析.最后,通过一台试验样机进行了空载反电动势和负载试验测试.仿真和实验结果表明该电机具有正弦度很好的反电动势、很小的定位力和高的推力密度,适合应用于直线驱动的数控机床.
제출료일충응용우직선구동수공궤상적신형자통절환영자직선전동궤.수선,급출료해전궤적이유화삼유탁복결구,개소료해직선전동궤적기본공작원리,병분석료2충전형위치적자장정황.기차,채용이유유한원적방법,대전궤적자련특성、반전동세특성、전감특성등정태특성진행료심입적연구.대2충불동철심결구자통절환영자직선전궤적정위력진행료대비분석,결과표명채용E형철심궤구가유효감소정위력.연후,기우연합능량법추도득도료전궤적정태추력계산공식,채용유한원방진대정태추력계산공식진행료험증분석.최후,통과일태시험양궤진행료공재반전동세화부재시험측시.방진화실험결과표명해전궤구유정현도흔호적반전동세、흔소적정위력화고적추력밀도,괄합응용우직선구동적수공궤상.
A novel flux-switching permanent magnet linear motor (FSPMLM) is proposed for linear direct driving machine tools.First, the two- and three-dimensional topological configuration of the proposed motor is presented; the basic operational principle of the FSPMLM is introduced; and the magnetic fields at the two typical conditions of no-load are analyzed. Secondly, the FSPMLM is analyzed by the two-dimensional finite element method ( FEM ) to investigate the static electromagnetic c haracteristics such as flux-linkage, back EMF (electromotive force) and inductance performances. The cogging forces of two kinds of FSPMLMs with different shaped cores are analyzed and compared, and the results show that the cogging force is significantly reduced by using the E-shaped cores. Additionally,based on the co-energy method, the thrust equation is derived and verified by the simulation results obtained by the FEM.Finally, an experimental prototype is used to test the characteristics under open circuit and load conditions. The simulation and experimental results indicate that the proposed motor has advantages of a sinusoidal back-EMF waveform, a small cogging effect and a high thrust density, and it is suitable for the application of linear direct driving machine tools.