【摘要】 为了解决数控机床进给系统的摩擦问题,采用一种磁悬浮永磁直线电动机来实现无摩擦进给.建立磁悬浮永磁直线电动机的电压、磁链、推力和运动的数学模型及控制系统的场路耦合仿真模型,运用Ansoft软件中的Maxwell和Simplorer对磁悬浮永磁直线电动机控制系统进行场路耦合的联合仿真,并研究磁悬浮永磁直线电动机加速、刹车与反向运行过程.仿真结果表明,该磁悬浮永磁直线电动机控制系统具有良好的跟踪和抗扰性能,为深入研究整个系统的相互耦合以及搭建实验平台提供了依据.更多还原

【Abstract】 To solve the friction problem existing in the feed system of computer numerical control(CNC) machine tool,a magnetic levitation permanent magnet linear motor was adopted to realize the friction-free feed.The mathmatical models for the voltage,flux linkage,thrust force and movement of magnetic levitation permanent magnet linear motor as well as the simulation model for the field-circuit coupling of control system were established.Maxwell and Simplorer in Ansoft software were used to carry out the co-simulation of field-circuit coupling for the control system of magnetic levitation permanent magnet linear motor.In addition,the acceleration,braking and reverse operation processes of magnetic levitation permanent magnet linear motor were studied.The simulation results show that the control system of magnetic levitation permanent magnet linear motor exhibits good tracking performance and anti-disturbance capability,which provides the basis for the research on the intercoupling of whole system and the guidance for the establishment of experiment platform.更多还原