中国机械工程 ›› 2015, Vol. 26 ›› Issue (13): 1815-1819.

• 机械基础工程 • 上一篇    下一篇

磁悬浮永磁直线电动机及其控制系统研究

蓝益鹏;刘宇菲   

  1. 沈阳工业大学,沈阳,110870
  • 出版日期:2015-07-10 发布日期:2015-07-08
  • 基金资助:
    国家自然科学基金资助项目(50975181)

Research on Magnetic Levitation Permanent Magnet Linear Motor and Its Control System

Lan Yipeng;Liu Yufei   

  1. Shenyang University of Technology,Shenyang,110870
  • Online:2015-07-10 Published:2015-07-08
  • Supported by:
    National Natural Science Foundation of China(No. 50975181)

摘要:

根据磁悬浮永磁直线电动机的特殊结构与运行机理,给出了电动机电磁推力和悬浮力的数学模型。建立了磁悬浮永磁直线电动机的有限元计算模型,对气隙磁密、电磁推力和悬浮力进行了有限元计算,并对气隙磁密作了谐波分析。设计了磁悬浮永磁直线电动机的研究样机,制作了磁悬浮子系统和进给伺服子系统,对系统进行实验研究,获得了磁悬浮子系统和进给子系统运行的实验结果。实验研究结果表明,该磁悬浮永磁直线电动机可实现直接驱动与无摩擦运行。

关键词: 数控机床, 永磁直线电动机, 磁悬浮, 控制系统

Abstract:

According to the special structure and operation mechanism of the maglev permanent magnet linear motor, a mathematical model of electromagnetic thrust and levitation force of the motor was given. The finite element calculation model of maglev permanent magnet linear motor was established. The air gap flux density, magnetic thrust and levitation force were calculated by finite element method, and the air gap flux density was carried out by harmonic analysis method. A research prototype of the maglev permanent magnet linear motor was design. The magnetic suspension subsystem and the feed servo subsystem were made. The results of the magnetic suspension subsystem and feed subsystem were obtained by experiments. Experimental results show that adopting the maglev permanent magnet linear motor can achieve the feasibility of direct drive and frictionless operation.
 

Key words: CNC machine, permanent magnet linear motor, magnetic levitation, control system

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