Energy optimization and experimental for a permanent magnet-biased redial magnetic bearing

Qiang LIU; Ming-shi ZHAO; Bang-cheng HAN; Ya-hong FAN; Jin-ji SUN; Shi-qiang ZHENG

doi:10.3788/OPE.20192711.2420

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Energy optimization and experimental for a permanent magnet-biased redial magnetic bearing

Micro/Nano Technology and Fine Mechanics | 更新时间：2020-08-13

- Energy optimization and experimental for a permanent magnet-biased redial magnetic bearing
- Optics and Precision Engineering Vol. 27, Issue 11, Pages: 2420-2428(2019)
- 作者机构：
  
  1.北京石油化工学院精密电磁装备与先进测量技术研究所, 北京 102617
  2.北京航空航天大学惯性技术重点实验室, 北京 100191
  3.北京控制工程研究所空间智能控制技术重点实验室, 北京 100190
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20192711.2420
  CLC： TH133.3
- Received：01 November 2018，
  
  Accepted：02 January 2019，
  
  Published：15 November 2019
- 稿件说明：
移动端阅览
Qiang LIU, Ming-shi ZHAO, Bang-cheng HAN, et al. Energy optimization and experimental for a permanent magnet-biased redial magnetic bearing[J]. Optics and precision engineering, 2019, 27(11): 2420-2428.
DOI：

Qiang LIU, Ming-shi ZHAO, Bang-cheng HAN, et al. Energy optimization and experimental for a permanent magnet-biased redial magnetic bearing[J]. Optics and precision engineering, 2019, 27(11): 2420-2428. DOI： 10.3788/OPE.20192711.2420.

摘要

针对磁悬浮飞轮低功耗的要求，对一种经典永磁偏置径向磁轴承进行能量优化研究。介绍了磁轴承的磁路结构和工作原理，基于磁轴承电流刚度和位移刚度数学模型，提取出轴承能量优化因子

。在此基础上，建立了磁轴承功耗的目标函数，并对磁轴承功耗进行优化，得到了最优功耗数学表达式及其对应的

大小。通过有限元法对轴承功耗优化结果进行仿真验证，其结果与理论分析结果基本吻合。在此基础上，基于优化结果研制了一套磁轴承，并通过改进现有15 Nms磁悬浮飞轮进行功耗测试。结果表明：振幅为10 μm时，单组绕组的最优功耗为0.87 W，与理论最优值0.79 W的最大误差为9%。该能量优化方法提高了磁轴承低功耗设计效率，对飞轮系统整体功耗优化具有重要意义。

Abstract

To address the requirement for low power of a magnetically suspended flywheel

the energy optimization of permanent magnet-biased radial magnetic bearing is studied. The magnetic circuit and working principles are introduced

based on the current stiffness and displacement stiffness mathematical models of a magnetic bearing

and the energy optimization factor

of a magnetic bearing is obtained. The objective function of the power consumption of the magnetic bearing is then established

followed by optimization of the consumption. Subsequently

a mathematical expression for optimal power consumption and the value of

are determined. The power consumption of the magnetic bearing is simulated and verified using the finite element method. The obtained results are tallied with the results of the theoretical analysis. Finally

based on the results of the optimization

a magnetic bearing is developed and power consumption is tested to improve the existing 15-Nms magnetically suspended flywheel. The results show that when the amplitude is 10 μm

the value of optimal power consumption for each winding is 0.85 W

with a maximum error of 7% compared with the theoretical optimal power consumption of 0.79 W. The designed efficiency of a magnetic bearing consuming low power is improved using the energy optimization method

which is important for the power optimization of flywheel systems.

关键词

Keywords

references

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