一种抑制扰动的轴向磁轴承鲁棒控制新方法

丁 力; 房建成; 魏 彤; 郑世强

一种抑制扰动的轴向磁轴承鲁棒控制新方法

北京航空航天大学仪器科学与光电工程学院, 北京 100191

基金项目: 国家自然科学基金资助项目(No.60704025)

详细信息

作者简介:
丁力(1984-),男,江苏常州人,硕士生,dingli@aspe.buaa.edu.cn.

中图分类号: TP 229; V 444.22
计量
- 文章访问数: 3093
- HTML全文浏览量: 277
- PDF下载量: 1273
- 被引次数: 0
出版历程
- 收稿日期: 2009-04-07
- 网络出版日期: 2010-04-30

Robust control method for disturbance rejection on axial magnetic bearing

School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 从鲁棒稳定性和抑制扰动的动态性能角度,分析了干扰观测器应用到轴向磁轴承时其有效带宽较低的问题,指出磁轴承易受到低频干扰并提出了一种抑制扰动鲁棒控制方法.基于动态分析建立了轴向磁轴承的名义模型,并设计了内环控制的干扰观测器,采用标准H_∞问题的方法设计抑制扰动鲁棒控制器作为外环控制.仿真分析与实验说明了该方法能够提高干扰观测器的带宽,同时,实验验证了对于系统参数不确定性具有较强的鲁棒性能,对比单一的控制方法具有良好的抑制扰动能力.
- 磁轴承 /
- 干扰观测器 /
- 鲁棒控制 /
- 扰动抑制
Abstract: Considering the requirements of robust stability and dynamic performance to reject disturbance, the problem of low bandwidth was analyzed when applying the disturbance observation(DOB) in the magnetic bearing. It was pointed out that the magnetic bearing was affected by outside low bandwidth noise, then a robust disturbance rejection method was proposed. The nominal model of the axial magnetic bearing was set up through dynamic analysis.And the DOB for internal loop controller was designed consisting of the inverse nominal model and a low pass filter with two relative rank. In external loop, a robust controller is developed using standard H_∞ analysis method after choosing proper weight functions to enhance robust stability. The simulation analysis and experiment result indicate that the method could extend the bandwidth of the DOB. Comparing to single controller, experimental result verifies that the robust disturbance rejection system controller has broad robust stability margin on parameter uncertainty and strong ability to eliminate disturbance.
- magnetic bearing /
- disturbance observation /
- robust control /
- disturbance rejection

HTML全文

参考文献(1)

[1] Lee Ho Seong.Robust digital tracking controllers for high-speed/high-accuracy positioning systems .Berkeley:Dept of Mechanical Engineering,Univ of California at Berkeley,1994 [2] Hewit J R,Morris J R.Disturbance observation control with estimation of the inertial matrix[J].Mechanism and Machine,2001,36:873-882 [3] 刘强,尔联洁.飞行仿真转台基于干扰观测器的鲁棒跟踪控制[J].北京航空航天大学学报,2003,29(2):181-184 Liu Qiang,Er Lianjie.Disturbance observer based robust tracking control of high precision flight simulator[J].Journal of Beijing University of Aeronautics and Astronautics,2003,29(2):181-184(in Chinese) [4] Choi Y,Yang K,Chung W K,et al.On the robustness and performance of disturbance observers for second-order systems[J].IEEE Trans on Automatic Control,2003,48(2):315-320 [5] 方强,姚郁.电动负载模拟器扰动观测器系统化设计[J].哈尔滨工业大学学报,2007,39(3):349-353 Fang Qiang,Yao Yu.A systemic disturbance observer design for EALS[J].Journal of Harbin Institute of Technology,2007,39(3):349-353(in Chinese) [6] Franco A L D,Bourles H,De Pieri E R,et al.Robust nonlinear control associating robust feedback linearization and H-inf control[J].IEEE Trans on Automatic Control,2006,51(7):1200-1207 [7] 刘德君,郭庆鼎,翁秀华.直线电动机驱动3-DOF磁浮平台推力解耦控制[J].机械工程学报,2005,41(1):234-238 Liu Dejun,Guo Qingding,Weng Xiuhua.Thrust decoupling control of linear motor driver 3-DOF planar magnetic suspension stage[J].Chinese Journal of Mechanical Engineering,2005,41(1):234-238(in Chinese) [8] Hwang J K,Oh K H,Song C K.Sliding mode control with disturbance observer for antilock braking systems // IEEE/ASME Int Conf on Advanced Intelligent Mechatronics Monterey.CA: ,2005:277-282 [9] 张晓宇,贺有智,王子才.基于H_∞性能指标的质量矩拦截弹鲁棒控制[J].航空学报,2007,28(3):634-640 Zhang Xiaoyu ,He Youzhi ,Wang Zicai.Robust control of mass moment interception missile based on H_∞ performance characteristics[J].Acta Aeronautica et Astronautica Sinica,2007,28(3):634-640(in Chinese) [10] 魏彤,房建成.磁悬浮高速转子系统双频Bode图稳定性分析方法研究[J].航空学报,2007,28(3):641-646 Wei Tong,Fang Jiancheng.Stability analysis method of magnetically suspended high-speed rotor based on two-frequency bode diagram[J].Acta Aeronautica et Astronautica Sinica,2007,28(3):641-646 (in Chinese)

施引文献

资源附件(0)

访问统计