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The Frequency-Domain Fusion Virtual Multi-Loop Feedback Control System with Measured Disturbance Feedforward Method in Telescopes

文献类型：期刊论文

作者Mao, Yao1,3; Deng, Jiuqiang1,3; Zhou, Xi1; Ren, Wei1,3
刊名ELECTRONICS
出版日期2019-10-01
卷号8期号:10
关键词optical telescope stabilizing optical path virtual gyroscope virtual multi-loop feedback control system measured disturbance feedforward vibration suppression
DOI10.3390/electronics8101103
文献子类期刊论文
英文摘要In the optical telescope, the stable precision of the optical path is affected by the structural vibrations. The image sensor with time delay and the micro electro-mechanical system (MEMS) accelerometer with massive drift limit the disturbance suppression performance of the closed loops. The current control methods cannot reject sufficiently vibrations due to the deficiency of the sensors, causality, and stability restrictions. In this study, the frequency-domain fusion virtual multi-loop feedback control system with measured disturbance feedforward method is proposed to suppress more structural vibrations. In spite of the deficiency of the sensors, we propose the frequency-domain fusion virtual gyroscopes (VGYR) to measure extra velocity of the system. The VGYR is estimated from the MEMS accelerometer with drift and corrected by the image sensor, and it replaces the fiber-optical gyroscopes (FOG) on the fast-stable platform because the weight of FOG is not negligible. To suppress more vibrations, the VGYR and the replaced FOG are utilized to build the virtual multi-loop feedback control system with measured disturbance feedforward, because it is not limited by the causality and stability restrictions. Therefore, the proposed method with causal ideal compensator can effectively improve stable precision and suppress much more structural vibrations in the wider frequency range. Detailed comparative experimental results adequately illustrate the advantages and effectiveness of this method.
出版地BASEL
WOS关键词TIP-TILT MIRROR
WOS研究方向Engineering, Electrical & Electronic
语种英语
WOS记录号WOS:000498262700043
出版者MDPI
源URL[http://ir.ioe.ac.cn/handle/181551/9688]  
专题光电技术研究所_光电工程总体研究室（一室）
作者单位1.Chinese Acad Sci, Key Lab Opt Engn, Chengdu 610209, Sichuan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Opt & Elect, Chengdu 610209, Sichuan, Peoples R China
推荐引用方式
GB/T 7714		 Mao, Yao,Deng, Jiuqiang,Zhou, Xi,et al. The Frequency-Domain Fusion Virtual Multi-Loop Feedback Control System with Measured Disturbance Feedforward Method in Telescopes[J]. ELECTRONICS,2019,8(10).
APA Mao, Yao,Deng, Jiuqiang,Zhou, Xi,&Ren, Wei.(2019).The Frequency-Domain Fusion Virtual Multi-Loop Feedback Control System with Measured Disturbance Feedforward Method in Telescopes.ELECTRONICS,8(10).
MLA Mao, Yao,et al."The Frequency-Domain Fusion Virtual Multi-Loop Feedback Control System with Measured Disturbance Feedforward Method in Telescopes".ELECTRONICS 8.10(2019).

入库方式： OAI收割

来源：光电技术研究所

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