| Citation: | XU Guofeng, CAI Yuanwen, REN Yuan, et al. Design and analysis on uniformity of magnetic flux density in Lorentz force-type magnetic bearing[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(3): 559-566. doi: 10.13700/j.bh.1001-5965.2016.0194(in Chinese)
|
With universal deflection, the high-speed rotor of new magnetically suspended control & sensitive gyroscope (MSCSG) can output high-accuracy and high-bandwidth deflection control torque, which can inhibit periodic vibration of the space-based platform. MSCSG is fully actively controlled in 5 degrees of freedom degrees of freedom (DOF) and its deflection control in 2 radial DOF is realized by Lorentz force-type magnetic bearing (LFMB). Based on basic structure of LFMB, the mathematical model of electromagnetic force and electromagnetic torque were set up and analysis shows that the uniformity of air gap flux density is the main factor that affects output torque accuracy and measuring accuracy of angle rate. The optimized design of LFMB with 1J50 thin slice added to the surface of inside and outside permanent magnet was introduced and the air gap flux density was analyzed to be highly uniform by finite element simulation. The output torque is more accurate and control accuracy is higher. The permanent magnet can support larger magnetic area with a trapezoid cross section to enlarge the air gap flux density and reduce power consumption. Besides, it can remain stable when the rotor is highly rotating. Some useful references can be provided by this paper for the design and analysis of magnetically suspended rotor gyroscope with deflection characteristic.
| [1] |
余远金. 全主动磁悬浮飞轮转轴偏转控制方法及实验研究[D]. 北京: 北京航空航天大学, 2015.
YU Y J.Study on the control method and experiment of the shaft tilting for the fully active magnetically suspended flywheel[D].Beijing:Beihang University, 2015(in Chinese).
|
| [2] |
FANG J C, ZHENG S Q, HANG B C.AMB vibration control for structural resonance of double-gimbal control moment gyro with high-speed magnetically suspended rotor[J].IEEE Transactions on Mechatronics, 2013, 18(1):32-43. doi: 10.1109/TMECH.2011.2161877
|
| [3] |
REN Y, FANG J C.Current-sensing resistor design to include current derivative in PWM H-bridge unipolar switching power amplifiers for magnetic bearings[J].IEEE Transactions on Industrial Electronics, 2012, 59(12):4590-4600. doi: 10.1109/TIE.2011.2179277
|
| [4] |
解永春.磁悬浮动量轮的主动振动控制[J].航天控制, 2001(2):1-6. http://www.cnki.com.cn/Article/CJFDTOTAL-KJKZ200002003.htm
XIE Y C.Active vibration suppression for magnetically suspended momentum wheels[J].Aerospace Control, 2001(2):1-6(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-KJKZ200002003.htm
|
| [5] |
刘侃. 动量矩可偏置磁悬浮动量轮结构设计[D]. 长沙: 国防科学技术大学, 2005.
LIU K.The structure design of magnetic suspension momentum wheel with deflection angular momentum[D].Changsha:National University of Defense Technology, 2005(in Chinese).
|
| [6] |
房建成, 孙津济, 樊亚洪.磁悬浮惯性动量轮技术[M].北京:国防工业出版社, 2012:9-10.
FANG J C, SUN J J, FAN Y H.Magnetically suspended inertial momentum wheel technology[M].Beijing:National Defense Industry Press, 2012:9-10(in Chinese).
|
| [7] |
BICHLER U, ECKARDT T.A gimbaled low noise momentum wheel[C]//27th Aerospace Mechanisms Symposium.1993, 1:181-196.
|
| [8] |
SAWADA H, HASHIMOTO T, NINOMIYA K.High-stability attitude control of satellites by magnetic bearing wheels[J].Transaction of the Japan Society for Aeronautical and Space Science, 2001, 44(145):133-141. doi: 10.2322/tjsass.44.133
|
| [9] |
ROSSINI L, CHETELAT O, ONILLON E, et al.Force and torque analytical models of a reaction sphere actuator based on spherical harmonic rotation and decomposition[J].IEEE/ASME Transactions on Mechatronics, 2013, 18(3):1006-1018. doi: 10.1109/TMECH.2012.2195501
|
| [10] |
SEDDON J, PECHEV A.3-D wheel:A single actuator providing three-axis control of satellites[J].Journal of Spacecraft and Rockets, 2012, 49(3):553-556. doi: 10.2514/1.A32039
|
| [11] |
王春娥. 惯性执行机构用高承载比低功耗磁轴承设计方法与实验研究[D]. 北京: 北京航空航天大学, 2014.
WANG C E.Design method and experimental research on high specific load capacity and low loss magnetic bearing in inertia actuator[D].Beijing:Beihang University, 2014(in Chinese).
|
| [12] |
JASTRZE BSKI R P, PÖLLÄNEN R.Compensation of nonlinearities in active magnetic bearings with variable force bias for zero-and reduced-bias operation[J].Mechatronics, 2009, 19(5):629-638. doi: 10.1016/j.mechatronics.2009.01.013
|
| [13] |
HAN F T, GAO Z Y, LI D M, et al.Nonlinear compensation of active electrostatic bearings supporting a spherical rotor[J].Sensors and Actuators A:Physical, 2005, 119(1):177-186. doi: 10.1016/j.sna.2004.08.030
|
| [14] |
CHEN M, KNOSPE C.Feedback linearization of active magnetic bearings:Current-mode implementation[J].IEEE/ASME Transactions on Mechatronics, 2005, 10(6):632-639. doi: 10.1109/TMECH.2005.859824
|
| [15] |
CHEN S, LIN F.Robust nonsingular terminal sliding-mode control for nonlinear magnetic bearing system[J].IEEE Transactions on Control Systems Technology, 2011, 19(3):636-643. doi: 10.1109/TCST.2010.2050484
|
| [16] |
GROCHMAL T, LYNCH A.Precision tracking of a rotating shaft with magnetic bearings by nonlinear decoupled disturbance observers[J].IEEE Transactions on Control Systems Technology, 2007, 15(6):1112-1121. doi: 10.1109/TCST.2006.890300
|
| [17] |
刘彬, 房建成, 刘刚.一种磁悬浮陀螺飞轮方案设计与关键技术分析[J].航空学报, 2011, 32(8):1478-1487. http://www.cnki.com.cn/Article/CJFDTOTAL-HKXB201108013.htm
LIU B, FANG J C, LIU G.Design of a magnetically suspended gyrowheel and analysis of key technologies[J].Acta Aeronautica et Astronautica Sinica, 2011, 32(8):1478-1487(in Chinese). http://www.cnki.com.cn/Article/CJFDTOTAL-HKXB201108013.htm
|
Figures(10) / Tables(2)
Copyright © Journal of Beijing University of Aeronautics and Astronautics
Address: Editorial Department of Journal of Beijing University of Aeronautics and Astronautics, 37 Xueyuan Road, Haidian District, Beijing Post Code: 100191 Email: jbuaa@buaa.edu.cn
Supported by:
Beijing Renhe Information Technology Co., Ltd.
DownLoad:
