Stable control method for rotor tilt channel in magnetically suspended control and sensing gyro

被引：0
|
作者：
Xia C.-F. [1 ]
Cai Y.-W. [2 ]
Ren Y. [3 ]
Jia R.-X. [4 ]
Li N. [5 ]
机构：
[1] Xi'an Satellite Control Center, Xi'an, 710043, Shaanxi
[2] Graduate School, Space Engineering University, Beijing
[3] Department of Aerospace Science and Technology, Space Engineering University, Beijing
[4] Key Laboratory of Human Factors National Defense Engineering, Beijing
[5] Unit 63961, The PLA, Beijing
来源：
Kongzhi Lilun Yu Yingyong/Control Theory and Applications | 2020年 / 37卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Filter cross feedback; Lorentz force magnetic beraing; Magnetically suspended control and sensing gyro; Significant gyro effects; Stable control;
D O I：
10.7641/CTA.2020.90340
中图分类号：
学科分类号：
摘要：
To suppress the influence of gyro effects on the rotor tilt channel of the magnetically suspended control and sensing gyro (MSCSG), digital controller based on decentralized PID plus filter cross feedback control is proposed. According to the structural characteristics of rotor tilt system supported by Lorentz-force magnetic bearing, dynamic model for rotor tilting is established; the coupling relationship of the two radial tilt channels is analyzed with the established model, and cross feedback control is proposed to import into the PID controller to suppress the gyro effects. Digital control system based on DSP and FPGA is constructed, and the proposed control algorithm is digital realized by bilinear transformation. The stability of the proposed control method is analyzed by root locus, and the stabilities of rotor tilt channel before and after importing filter cross feedback are compared by experiments. The experimental results show that with the traditional decentralized PID, the rotor system loses stability at the speed of 3200 r/min, while the rotor system can operate stably at the speed of 5000 r/min after importing filter cross feedback control. Experiment results demonstrate the effectiveness of the proposed stable control method to suppress the significant gyro effects for MSCSG. © 2020, Editorial Department of Control Theory & Applications South China University of Technology. All right reserved.
引用
收藏
页码：1535 / 1543
页数：8
相关论文
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