NIAOT OpenIR  > 中国科学院南京天文光学技术研究所  > 期刊论文
Azimuth Control for Large Aperture Telescope Based on Segmented Arc Permanent Magnet Synchronous Motors
Song XL(宋晓莉); Wang DX(汪达兴)
2021-07
Source PublicationResearch in As tronomy and As trophysics
Volume21Issue:7Pages:86-92
Abstract

A tracking control algorithm based on active disturbance rejection controller (ADRC) is proposed to overcome the telescope’s mount fluctuation. The fluctuations are caused by internal and external disturbance when the large aperture telescope runs at ultra-low speed with direct drive. According to the high-precision and high-stability requirements of a large aperture telescope, the ADRC position controller
is designed based on segmented arc Permanent Magnet Synchronous Motors (arc PMSMs).

The tracking differentiator of ADRC is designed to undergo a transition process to avoid overshoot in the position loop.The speed of target tracking process is observed by the extended state observer and the position information in the system is estimated in real time. The current control variable of the segmented arc PMSM is generated by implementing a non-linear state error feedback control law. The simulation results demonstrate that the proposed control strategy can not only accurately estimate the position and speed of the tracking target, but also estimate the disturbance to compensate the control variables. Experiments showed that the speed error is less than 0.05′′s-1

when using the ADRC, and it can realize high tracking performance when compared with PID controller, which improves the robustness of a large aperture telescope control system.

Keywordtechniques: telescopes instrumentation: miscellaneous methods: miscellaneous techniques
Subject Area天文技术与方法
Language英语
Document Type期刊论文
Identifierhttp://ir.niaot.ac.cn/handle/114a32/1959
Collection中国科学院南京天文光学技术研究所_期刊论文
望远镜新技术研究室_期刊论文
Affiliation南京天文光学技术研究所
Recommended Citation
GB/T 7714
Song XL,Wang DX. Azimuth Control for Large Aperture Telescope Based on Segmented Arc Permanent Magnet Synchronous Motors[J]. Research in As tronomy and As trophysics,2021,21(7):86-92.
APA Song XL,&Wang DX.(2021).Azimuth Control for Large Aperture Telescope Based on Segmented Arc Permanent Magnet Synchronous Motors.Research in As tronomy and As trophysics,21(7),86-92.
MLA Song XL,et al."Azimuth Control for Large Aperture Telescope Based on Segmented Arc Permanent Magnet Synchronous Motors".Research in As tronomy and As trophysics 21.7(2021):86-92.
Files in This Item: Download All
File Name/Size DocType Version Access License
Azimuth Contr...rono(1027KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Song XL(宋晓莉)]'s Articles
[Wang DX(汪达兴)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Song XL(宋晓莉)]'s Articles
[Wang DX(汪达兴)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Song XL(宋晓莉)]'s Articles
[Wang DX(汪达兴)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Azimuth Contr...ronous Motors_Xiao-Li Song.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.