Stable control of MSCMG rotor based on feedback linearization

被引：0
|
作者：
Tang J. [1 ]
Wei T. [1 ]
Ning M. [1 ]
Cui X. [1 ]
机构：
[1] School of Instrumentation Science and Opto-electronic Engineering, Beihang University, Beijing
来源：
Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics | 2020年 / 46卷 / 06期
关键词：
Enhanced internal model control; Feedback linearization; Magnetically Suspended Control Moment Gyro (MSCMG); Moving-gimbal effects; Nonlinear parameter perturbation;
D O I：
10.13700/j.bh.1001-5965.2019.0401
中图分类号：
学科分类号：
摘要：
The stable suspension of the Magnetically Suspended Control Moment Gyro (MSCMG) rotor is the key to achieve high-precise and large-moment output for gyro. Aimed at the problems of the rotor radial tilt coupling, nonlinear parameter perturbation and moving-gimbal effects that affect the rotor stable suspension, the rotor dynamics model is established and an enhanced internal model control method based on feedback linearization is proposed. The feedback linearization method is used to decouple the radial tilt motion and linearize the rotor dynamics model. The enhanced internal model control is designed to compensate the nonlinear parameter perturbation, suppress moving-gimbal effects and improve stability of the rotor system. MATLAB simulation results show that the proposed control method can decouple rotor tilt motion completely. Compared with the PID control, the proposed method can effectively suppress the influence of parameter perturbation on rotor radial translation. For rotor radial tilt, the proposed method can effectively suppress moving-gimbal effects and improve system control precision compared with PID cross control. © 2020, Editorial Board of JBUAA. All right reserved.
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页码：1063 / 1072
页数：9
相关论文
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