Autobalancing control of high-speed rotor suspended by active-passive hybrid magnetic bearings

LIU Chao; LIU Gang; ZHAO Guang-zai

doi:10.3788/OPE.20152303.0714

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Autobalancing control of high-speed rotor suspended by active-passive hybrid magnetic bearings

更新时间：2020-08-13

- Autobalancing control of high-speed rotor suspended by active-passive hybrid magnetic bearings
- Optics and Precision Engineering Vol. 23, Issue 3, Pages: 714-722(2015)
- 作者机构：
  
  1. 北京航空航天大学惯性技术重点实验室北京,100191
  2. 北京航空航天大学仪器科学与光电工程学院北京,100191
  3. 北京航空航天大学新型惯性仪表与导航系统技术国防重点学科实验室北京,100191
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20152303.0714
  CLC： TP273;V448.22
- Received：25 September 2014，
  
  Revised：28 October 2014，
  
  Published：25 March 2015
- 稿件说明：
移动端阅览
刘超, 刘刚, 赵光再. 主被动磁悬浮高速转子系统的自动平衡控制[J]. 光学精密工程, 2015,23(3): 714-722

LIU Chao, LIU Gang, ZHAO Guang-zai. Autobalancing control of high-speed rotor suspended by active-passive hybrid magnetic bearings[J]. Editorial Office of Optics and Precision Engineering, 2015,23(3): 714-722
刘超, 刘刚, 赵光再. 主被动磁悬浮高速转子系统的自动平衡控制[J]. 光学精密工程, 2015,23(3): 714-722 DOI： 10.3788/OPE.20152303.0714.

LIU Chao, LIU Gang, ZHAO Guang-zai. Autobalancing control of high-speed rotor suspended by active-passive hybrid magnetic bearings[J]. Editorial Office of Optics and Precision Engineering, 2015,23(3): 714-722 DOI： 10.3788/OPE.20152303.0714.

摘要

针对主被动磁悬浮转子高速旋转时质量不平衡和被动磁轴承磁中心的偏移导致的同频振动力问题

提出了一种基于位移陷波加前馈补偿的自动平衡控制方法。首先

在转子为零位移控制状态下提取控制电流的同频成分

计算获得与被动磁轴承磁中心偏移相关的参变量;然后

在额定转速下设计通用陷波器以消除同频电流

前馈补偿主动磁轴承、被动磁轴承位移负刚度力和被动磁轴承磁中心偏移力

使主被动磁轴承的同频输出力为零

实现了转子绕惯性中心旋转。对提出的方法进行了仿真和实验验证并与仅补偿质量不平衡的算法进行了对比。仿真结果显示:提出的方法的同频磁轴承力减小到了只进行质量不平衡补偿算法的6%;实验结果显示:同频振动加速度减小到只进行质量不平衡补偿算法的23.3%。仿真和实验验证了该方法的有效性

表明该方法对同频振动抑制效果显著

实现了转子的自动平衡控制。

Abstract

As synchronous periodic vibration forces are induced by both uneven distributed mass and magnetic center offset when the active-passive hybrid magnetically suspended rotor rotates at high speed

this paper proposes an autobalancing method to remove the vibration forces. Firstly

the offset parameters of the passive magnetic bearing were calculated from the synchronous periodic control currents extracted in the zero-displacement control condition. Then a general notch filter was designed to inhibit the synchronous current and to obtain the synchronous displacement at the same time. After carrying out the feedforward compensations of active-passive magnetic bearing displacement stiffness force and the offset of the passive magnetic center

the synchronous period force component of the active-passive magnetic bearings was removed entirely. The method was verified by simulations and experiments

and compared with an algorism without passive magnetic center offset compensation. The simulations indicate that the synchronous force has reduced to 6% of the algorithm without passive magnetic center offset compensation. Experimental results indicate that the synchronous vibration acceleration has reduced to 23.3% of that without passive magnetic center offset compensation. Simulation and experiment results demonstrate the effectiveness of the proposed method and show that the method is effective for elimination of synchronous vibration force and realizes the automatic balance control for rotors.

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references

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