基于转子不平衡响应的磁轴承磁力参数辨识

刘超; 刘刚

doi:10.13700/j.bh.1001-5965.2014.0516

基于转子不平衡响应的磁轴承磁力参数辨识

doi: 10.13700/j.bh.1001-5965.2014.0516

刘超^1,2,
刘刚^1,2, ,

1.
北京航空航天大学仪器科学与光电工程学院, 北京 100191
2. 北京航空航天大学惯性技术重点实验室, 北京 100191

基金项目: 国家自然科学基金(61374029)

详细信息

作者简介:
刘超(1987—),男,山东德州人,博士研究生,zjhbliu@sina.com

通讯作者:
刘刚(1970—),男,山东济南人,教授,lgang@buaa.edu.cn,研究方向为航天器惯性执行机构设计制造及应用技术.

中图分类号: V448.22
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- 被引次数: 0
出版历程
- 收稿日期: 2014-08-20
- 修回日期: 2014-10-11
- 网络出版日期: 2015-07-20

Parameter identification of magnetic bearing based on rotor unbalance responses

LIU Chao^1,2,
LIU Gang^{1,2
, ,}

1.
School of Instrumentation Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
2. Science and Technology on Inertial Laboratory, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 针对磁轴承磁力参数理论设计值不精确的问题,提出了一种基于不平衡响应的磁力参数实验辨识方法.利用转子的质量不平衡在高速转动时的离心力效应,通过检测磁轴承在零电流控制状态下的同频位移响应和零位移控制状态下的同频电流响应,解算磁轴承磁力参数.设计了基于通用陷波器原理的零位移控制器和零电流控制器,并通过设置T矩阵保证闭环系统稳定.实验结果表明:基于不平衡响应的磁力参数辨识方法,辨识结果与理论设计值差别在20%之内,证明了该方法的正确性和改进磁轴承力学参数的有效性.
- 磁轴承 /
- 参数辨识 /
- 不平衡响应 /
- 电流刚度 /
- 位移刚度
Abstract: The force parameters of magnetic bearing obtained by theoretical design method were usually inaccurate. To solve this problem, an identification method based on rotor unbalance responses was proposed. Making the rotor rotate at high speed, the eccentric effect of the rotor imbalance can be used. The force parameters of magnetic bearing were calculated by measuring the synchronous currents when the rotor was in the null-displacement control mode and the synchronous displacements when the rotor was in the null-current control mode. The null-current controller and the null-displacement controller were designed based on the generalized notch filter theory, and the T matrix was set up to ensure the close loop was stable. The experimental results indicate that the difference rate between experiment identification result and the theoretical design result is within 20%. And it proves that the method is correct and effective to improve the identification precision for the force parameters of the magnetic bearing.
- magnetic bearing /
- parameter identification /
- unbalance response /
- current stiffness /
- position stiffness

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参考文献(18)

[1]	刘强, 房建成. 磁悬浮飞轮用可重复抱式锁紧装置[J].光学精密工程, 2012, 20(8): 1802-1810. Liu Q, Fang J C.Repeated clamping locking device for magnetic bearing flywheel[J].Optics Precision Engineering, 2012, 20(8): 1802-1810(in Chinese).
[2]	Zheng S Q, Han B C.Investigations of an integrated angular velocity measurement and attitude control system for spacecraft using magnetically suspended double-gimbal CMGs[J].Advances in Space Research, 2013, 51(12): 2216-2228.
[3]	王英广, 房建成, 郑世强, 等.磁悬浮电机的高效高精度在线动平衡[J].光学精密工程, 2013, 21(11): 2884-2892. Wang Y G, Fang J C, Zheng S Q, et al.Field balancing of magnetically levitated motor in high-efficiency and high-accuracy[J].Optics and Precision Engineering, 2013, 21(11): 2884-2892(in Chinese).
[4]	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 T, Xiang M.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(in Chinese).
[5]	Fang J C, Wang C E, Wen T.Design and optimization of a radial hybrid magnetic bearing with separate poles for magnetically suspended inertially stabilized platform.[J].IEEE Transactions on Magnetics, 2014, 50(5): 1-11.
[6]	Han B C, Zheng S Q, Le Y, et al.Modeling and analysis of coupling performance between passive magnetic bearing and hybrid magnetic radial bearing for magnetically suspended flywheel[J].IEEE Transactions on Magnetics, 2013, 49(10): 5356-5370.
[7]	Han B C. Modeling and analysis of novel integrated radial hybrid magnetic bearing for magnetic bearing reaction wheel[J].Chinese Journal of Mechanical Engineering, 2010, 23(5): 655-662.
[8]	Kim S J, Lee C W.On-line identification of current and positon stiffnesses by LMS algorithm in active magnetic bearing system equipped with force transducers[J].Mechanical Systems and Signal Processing, 1999, 13(5): 681-690.
[9]	白金刚, 张小章, 张剀, 等.磁悬浮储能飞轮系统中的磁轴承参数辨识[J].清华大学学报: 自然科学版, 2008, 48(3): 382-385. Bai J G, Zhang X Z, Zhang K, et al.Parameter identification for active magnetic bearings in energy storage flywheel[J].Journal of Tsinghua University: Science and Technology, 2008, 48(3): 382-385(in Chinese).
[10]	郑世强.双框架磁悬浮控制力矩陀螺磁轴承控制及应用研究[D].北京: 北京航空航天大学, 2011. Zheng S Q.Magnetic bearing control and application research of double gimbal magnetically suspended control moment gyro[D].Beijing: Beijing University of Aeronautics and Astronautics, 2011(in Chinese).
[11]	房建成, 王鹏.控制力矩陀螺用磁轴承磁力参数的辨识[J].中国惯性技术学报, 2007, 15(2): 221-224. Fang J C, Wang P.Identification of magnetic parameters for magnetic bearings in control moment gyroscope(CMG)[J].Journal of Chinese Inertial Technology, 2007, 15(2): 221-224(in Chinese).
[12]	侯二永, 刘昆. 基于在线动平衡的磁轴承参数辨识[J].国防科技大学学报, 2013, 35(6): 65-70. Hou E Y, Liu K.Parameter identification for magnetic bearing based on online dynamic balancing[J].Journal of National University of Defense Technology, 2013, 35(6): 65-70(in Chinese).
[13]	文通.主被动磁悬浮反作用飞轮永磁偏置混合磁轴承控制方法研究[D].北京: 北京航空航天大学, 2012. Wen T.Study on control of the permanent magnet biased magnetic bearing used in the active-passive hybrid magnetic suspended reaction flywheel[D].Beijing: Beijing University of Aeronautics and Astronautics, 2012(in Chinese).
[14]	陈振, 刘向东, 戴亚平, 等.一种改进的重复控制器在高频角振动转台中的应用[J].电工技术学报, 2008, 23(11): 178-182. Chen Z, Liu X D, Dai Y P, et al.A modified repetitive controller and its application to high-frequency angular-vibration table[J].Transactions of China Electrotechnical Society, 2008, 23(11): 178-182(in Chinese).
[15]	Shi J, Zmood R, Qin L.Synchronous disturbance attenuation in magnetic bearing systems using adaptive compensating signals[J].Control Engineering Practice, 2004, 12(3): 283-290.
[16]	彭晓军, 高钟毓, 王永樑.磁电轴承中抑制不平衡振动的陷波器设计方法[J].机械工程学报, 2006, 42(6): 120-123. Peng X J, Gao Z Y, Wang Y L.Design of notch filter to eliminate unbalance vibration in magnetic and electrostatic bearing[J].Journal of Mechanical Engineering, 2006, 42(6): 120-123(in Chinese).
[17]	冯锐, 郑世强, 房建成.高速磁悬浮电动机对拖试验中转子不平衡量在线辨识与振动控制[J].机械工程学报, 2014, 50(3): 71-77. Feng R, Zheng S Q, Fang J C.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(in Chinese).
[18]	Herzog R, Buhler P, Gahler C, et al.Unbalance compensation using generalized notch filters in the multivariable feedback of magnetic bearings[J].IEEE Transactions on Control Systems Technology, 1996, 4(5): 580-586.