基于滑模扰动观测器的磁轴承主动振动控制

韩邦成; 崔华; 汤恩琼

doi:10.3788/OPE.20122003.0563

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基于滑模扰动观测器的磁轴承主动振动控制

微纳技术与精密机械 | 更新时间：2020-08-12

- 基于滑模扰动观测器的磁轴承主动振动控制
- Vibration suppression of magnetic bearing based on sliding mode disturbance observer
- 光学精密工程 2012年20卷第3期页码：563-570
- 作者机构：
  
  北京航空航天大学仪器科学与光电工程学院惯性技术国家级重点实验室北京,100191
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No. 61174134)();国家973重点基础研究发展计划资助项目(No.2009CB72400103)();中央高校基本科研业务费专项资
- DOI：10.3788/OPE.20122003.0563
  中图分类号： V448.22
- 收稿日期：2011-08-03，
  
  修回日期：2011-09-06，
  
  网络出版日期：2012-03-22，
  
  纸质出版日期：2012-03-22
- 稿件说明：
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韩邦成, 崔华, 汤恩琼. 基于滑模扰动观测器的磁轴承主动振动控制[J]. 光学精密工程, 2012,(3): 563-570

HAN Bang-cheng, CUI Hua, TANG En-qiong. Vibration suppression of magnetic bearing based on sliding mode disturbance observer[J]. Editorial Office of Optics and Precision Engineering, 2012,(3): 563-570
韩邦成, 崔华, 汤恩琼. 基于滑模扰动观测器的磁轴承主动振动控制[J]. 光学精密工程, 2012,(3): 563-570 DOI： 10.3788/OPE.20122003.0563.

HAN Bang-cheng, CUI Hua, TANG En-qiong. Vibration suppression of magnetic bearing based on sliding mode disturbance observer[J]. Editorial Office of Optics and Precision Engineering, 2012,(3): 563-570 DOI： 10.3788/OPE.20122003.0563.

摘要

由于磁悬浮控制力矩陀螺转子的不平衡振动会造成控制力矩陀螺系统的同频扰动

影响卫星姿态控制精度与卫星载荷精度

本文提出了基于滑模变结构扰动观测器的磁轴承主动振动控制方法。首先

对不平衡扰动力和力矩作用下的磁轴承-转子系统进行建模;接着

设计了滑模变结构扰动观测器观测不平衡扰动力和力矩;然后

利用跟踪微分器估计位移传感器输出信号的微分获取速度信号

降低观测器的阶数;最后

将滑模扰动观测器的输出引入磁轴承控制器

对观测得到的同频不平衡扰动力和力矩进行补偿。仿真和试验结果均表明

设计的滑模变结构观测器实现了对不平衡扰动的观测

通过控制器有效地实现了对不平衡扰动的补偿

减少了72%的同频振动。

Abstract

As rotor imbalance can lead to the synchronous disturbances of Magnetically Suspended Control Moment Gyroscopes (MSCMG)

and can reduce the attitude control accuracy and the load accuracy of spacecrafts

A general control strategy based on a sliding mode disturbance observer was proposed to minimize the synchronous vibration caused by unbalance on a rotor. First

a dynamics model of the magnetic bearing-rotor system was set up and the sliding mode observer used for disturbance observation was designed. Then

a Tracking Differentiator (TD) was used to estimate the differential signals from a displacement sensor to obtain the velocity signals and to reduce orders of the observer. Finally

according to the synchronous force estimated by the disturbance observer

a controller was designed to compensate the vibration caused by unbalance of the rotor. Simulation and experimental results demonstrate the effectiveness of the proposed approach and the vibration has been decreased by 72%.

关键词

Keywords

references

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