• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2022, Vol. 58 ›› Issue (21): 161-170.doi: 10.3901/JME.2022.21.161

• 机械动力学 • 上一篇    下一篇

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磁悬浮轴承非定向差动控制方式研究

李超, 谢振宇, 吴传响, 王一建   

  1. 南京航空航天大学直升机传动技术重点实验室 南京 210016
  • 收稿日期:2021-11-12 修回日期:2022-04-23 出版日期:2022-11-05 发布日期:2022-12-23
  • 通讯作者: 谢振宇(通信作者),男,1968年出生,博士,副教授,硕士研究生导师。主要研究方向为磁悬浮支承,转子动力学,机电一体化。E-mail:xiezy@nuaa.edu.cn
  • 作者简介:李超,男,1995年出生。主要研究方向为磁悬浮轴承。E-mail:lichao_nuaa@163.com

Research on Non-directional Differential Control Strategy of Active Magnetic Bearing

LI Chao, XIE Zhengyu, WU Chuanxiang, WANG Yijian   

  1. National Key Laboratory of Science and Technology on Helicopter Transmission, Nanjing University of Aeronautics and Astronautics, Nanjing 210016
  • Received:2021-11-12 Revised:2022-04-23 Online:2022-11-05 Published:2022-12-23

摘要: 提出非定向差动控制方式,通过独立控制各差动磁极对,提高参与控制的最少差动磁极对数量,以提高磁悬浮轴承的承载能力。以16极径向磁悬浮轴承为例,详细介绍了非定向差动控制方式与常规差动控制方式,对比了两种控制方式的等效刚度和等效阻尼、复刚度和复阻尼、名义承载力等支承性能。通过高速旋转试验验证两种控制方式下系统的控制性能。理论分析结果表明,采用非定向差动控制方式时,磁悬浮轴承的承载能力提高了8.24%,最大承载力提高了30.657%。试验结果表明,采用非定向差动控制方式时,系统具有更好的控制效果。

关键词: 磁悬浮轴承, 非定向差动控制方式, 承载能力

Abstract: A non-directional differential control method is proposed. By independently controlling each differential magnetic pole pair, the minimum number of differential magnetic pole pairs participating in the control is increased to improve the bearing capacity of the active magnetic bearing. Taking 16-pole radial magnetic bearing as an example, the non-directional differential control method and the conventional differential control method are introduced in detail, and supporting performance such as the equivalent stiffness and equivalent damping, complex stiffness and complex damping, and nominal bearing capacity of the two control methods are compared. Verify the control performance of the system under the two control modes through high-speed rotation test. Theoretical analysis results show that when the non-directional differential control method is adopted, the bearing capacity of the magnetic bearing is increased by 8.24%, and the maximum bearing capacity is increased by 30.657%. The test results show that when the non-directional differential control mode is adopted, the system has a better control effect.

Key words: active magnetic bearing, non-directional differential control, carrying capacity

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