• CN：11-2187/TH
  • ISSN：0577-6686
机械工程学报

机械工程学报 ›› 2017, Vol. 53 ›› Issue (4): 184-189.doi: 10.3901/JME.2017.04.184

• 交叉与前沿 • 上一篇    下一篇

扫码分享

可控励磁磁悬浮进给平台电磁特性的有限元分析*

蓝益鹏, 胡学成, 陈其林, 申永山   

  1. 沈阳工业大学电气工程学院 沈阳 110870
  • 出版日期:2017-02-20 发布日期:2017-02-20
  • 作者简介:

    蓝益鹏，男，1962年出生，博士，副教授，博士研究生导师。主要从事电动机及其控制，数控技术的研究。

    E-mail：lanyipengg@163.com

  • 基金资助:
    * 国家自然科学基金资助项目(51575363); 20160713收到初稿，20161205收到修改稿;

Finite Element Analysis of Electromagnetic Characteristics of Controllable Excitation Magnetic Suspension Feed Platform

LAN Yipeng, HU Xuecheng, CHEN Qilin, SHEN Yongshan   

  1. School of Electrical Engineering， Shenyang University of Technology， Shenyang 110870
  • Online:2017-02-20 Published:2017-02-20

PDF

249

摘要：

设计一种可控励磁直线同步电动机磁悬浮进给平台，平台与直线同步电动机动子固定相连，直线同步电动机同时实现平台的进给与悬浮。可控励磁磁悬浮进给平台的电动机定子为直流励磁，磁极既是励磁磁极也是平台的悬浮磁极，磁极与动子铁心间的法向力为平台的悬浮力，调节励磁电流改变平台的悬浮力;电枢在磁场中受到的切向力为驱动平台的电磁推力，调节电枢电流以调节平台的电磁推力。为了研究可控励磁直线同步电动机磁悬浮进给平台的电磁特性，建立了该平台的数学模型和运动方程，并在数学模型的基础之上对电磁推力与悬浮力进行有限元计算。电磁推力的解析计算结果与有限元分析结果相比较，最大相对误差为8.73%，悬浮力的解析计算结果与有限元分析的结果相比较，最大相对误差为19.15%。计算结果表明可控励磁磁悬浮进给平台运行的可行性。

关键词: 磁悬浮, 进给平台, 有限元计算, 可控励磁

Abstract:

A kind of controllable excitation linear synchronous motor magnetic suspension feed platform is designed, which the platform and the mover of linear synchronous motor are fixed connected, the linear synchronous motor can achieve feeding and levitation of the platform at the same time. The motor stator of controllable excitation linear synchronous motor magnetic suspension feed platform is DC excitation, and the excitation poles and the suspended poles are the same, and the normal force between the poles and the mover core is the suspension force of the platform, which can be changed by adjusting the excitation current; the tangential force of the armature is the electromagnetic force of the platform, which can be changed by adjusting the armature current. In order to obtain the electromagnetic characteristic of controllable excitation linear synchronous motor magnetic suspension feed platform, motion equation and the mathematical model of this platform are established, the electromagnetic thrust and the levitation force are calculated by finite element method based on the mathematical model. The maximum relative error between the theoretical formula and the finite element calculation of electromagnetic thrust is 8.73%, and the maximum relative error between the theoretical formula and the finite element calculation of levitation force is 19.15%. The calculation result shows the feasibility of controllable excitation magnetic suspension feed platform.

Key words: feed platform, finite element calculation, magnetic suspension, controllable excitation

版权所有 © 2019 《机械工程学报》编辑部 | 京ICP备05055788号-30