基于相移陷波器的磁轴承不平衡振动全频自适应控制#br#

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振动与冲击 ›› 2015, Vol. 34 ›› Issue (20) : 16-20.

论文

崔培玲1,2，赵光再1,2，房建成1,2，李海涛1,2

作者信息 +

Adaptive control of unbalance vibration for magnetic bearings based on phase-shift notch filter within the whole frequency range

CUI Pei-ling1,2，ZHAO Guang-zai1,2，FANG Jian-cheng1,2，LI Hai-tao1,2

Author information +

文章历史 +

摘要

为全转速范围内消除磁悬浮转子不平衡质量产生的不平衡振动力，提出基于相移陷波器的不平衡振动全频自适应控制方法。直接以构造的轴承力作为相移带通滤波器输入，将滤波器输出反馈至控制系统构成相移陷波器，达到消除振动力目的。该过程无需考虑功放低通特性对同频成分影响；通过对系统灵敏度函数理论分析，在不同转速下自适应调节相移角，实现全转速范围内系统稳定。结果表明，该方法能在全频范围内有效地消除同频轴承力。

Abstract

Mass unbalance of high-speed magnetically suspended rotor causes unbalance force, which induces synchronous vibration. To suppress vibration effectively within the operating speed ranges, a method based on a phase-shift notch filter is proposed. The control strategy of the method is that the magnetic bearing force is calculated as the input of band-pass filter and the output of the filter is feedbacked to the original system, in which the low-pass characteristic of power amplifier need not to be considered. Meanwhile, based on the theoretical analysis on the sensitivity function of the overall control system, the stable system in the rotating speed range is achieved based on the adaptive adjustment of the phase shift in the band-pass filter with respect to rotor speeds. Experimental results are given to show the effectiveness of the proposed approach, in which the synchronous magnetic bearing force is reduced within the whole frequency range.

导出引用

崔培玲1,2，赵光再1,2，房建成1,2，李海涛1,2. 基于相移陷波器的磁轴承不平衡振动全频自适应控制#br#[J]. 振动与冲击, 2015, 34(20): 16-20

CUI Pei-ling1,2，ZHAO Guang-zai1,2，FANG Jian-cheng1,2，LI Hai-tao1,2 . Adaptive control of unbalance vibration for magnetic bearings based on phase-shift notch filter within the whole frequency range[J]. Journal of Vibration and Shock, 2015, 34(20): 16-20

参考文献

[1] 郑世强,房建成,魏彤,等. MSCMG磁轴承μ综合控制方法与实验研究[J]. 仪器仪表学报,2010, 31(6): 1375-1380
ZHENG Shi-qiang, FANG Jian-cheng, WEI Tong, et al. Experimental study on μ synthesis control for magnetic bearings of MSCM G[J]. Chinese Journal of Scientific Instrumen, 2010, 31(6): 1375-1380.
[2] Abdelfatah M M, Ilene B V. Imbalance compensation and automation balancing in magnetic bearing systems using the Q-parameterization theory[J]. IEEE Transactions on Control Systems Technology, 1995, 3(2): 202-210.
[3] Fang J C, Ren Y. Decoupling control of a magnetically suspended rotor system in control moment gyros based on an inverse system method[J]. IEEE/ASME Transactions on mechatronic, 2010, 17(6): 1133-1144.
[4] 冯锐,郑世强,房建成. 高速磁悬浮电动机对拖实验中转子不平衡质量在线辨识与振动控制[J]. 机械工程学报, 2014, 50(3): 71-77.

FENG Rui, ZHENG Shi-qiang, FANG Jian-cheng. Online identification and unbalanced vibration control of high-speed magnetically levitated motor for drag test[J]. Journal of Mechanical Engineering, 2014, 50(3): 71-77.
[5] 龙亚文,谢振宇,徐欣. 磁悬浮轴承H鲁棒控制策略研究[J]. 振动与冲击,2013,32(23):115-120.
LONG Ya-wen, XIE Zhen-yu, XU Xin. H robust control strategy for an active magnetic bearing[J]. Journal of Vibration and Shock,2013,23(23):115-120.
[6] Lum K W, Coppla V T, Bernstein D S. Adaptive autocentering control for an active magnetic bearing supporting a rotor with unkown mass imbalance[J]. IEEE Transactions on Control Systems Technology, 1996, 4(5): 587-597.
[7] Shi J, Zmood R, Qin L J. The direct method for adaptive feed-forward vibration control of magnetic bearing systems[C]. Seventh International Conference on Control, Automation, Robotics and Vision, Singapore, 2002.
[8] Bi C, Wu D Z, Jiang Q , et al. Automatic learning control for unbalance compensation in active magnetic bearings[J]. IEEE Transactions on Magnetics, 2005, 41(7): 2270-2280.
[9] 刘彬,房建成,刘刚,等. 磁悬浮飞轮不平衡振动控制方法与实验研究[J]. 机械工程学报,2010, 46(12): 188-194.
LIU Bin, FANG Jian-cheng, LIU Gang, et al. Unbalance vibration control and experiment research of magnetically suspended flywheels[J]. Journal of Mechanical Engineering, 2010, 46(12): 188-194.
[10] 魏彤,向岷. 磁悬浮高速转子基于位移刚度力超前前馈补偿的高精度自动平衡方法[J]. 机械工程学报，2012, 48(16): 184-191.
WEI Tong, XIANG Min. Autobalancing for magnetically suspended high-speed rotors based on lead feedforward compensation for displacement stiffness force[J]. Journal of Mechanical Engineering, 2012, 48(16): 184-191.
[11] Fang J C, Xu X B, Tang J Q, et al. Adaptive complete suppression of imbalance vibration in AMB systems using gain phase modifier[J]. Journal of Sound and Vibration, 2013, 332(24): 6203-6215.