Institutional Repository of Radio Astronomy Research Laboratory
| Active Disturbance Rejection-based Double-loop Control Design for Large Antenna's Servo System | |
Li, Ning1 ; Wang, Na1; Liu, Zhiyong1; Yang, Lei1,2
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| 2023-11-01 | |
| Source Publication | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
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| ISSN | 0004-6280 |
| Volume | 135Issue:1053Pages:115001 |
| Contribution Rank | 1 |
| Abstract | Radio astronomical observations put stringent requirements on the tracking and pointing accuracy of radio telescope antennas. High inertia, low stiffness, underdamped, and multi-resonant frequencies of a large aperture radio telescope's antenna make the high-accuracy control difficult. It is not easy to satisfy control performance using only conventional PID controllers. A low-order Active Disturbance Rejection-based double-loop controller for large antenna is designed in this paper and tested on the Green Bank Telescope model. First, the first-order Linear Active Disturbance Rejecting Controller (LADRC) cascading a first-order low-pass filter and a notch filter is designed for the antenna's velocity loop to achieve the dual-objective optimal velocity tracking. Second, the position loop controller is designed to realize the antenna's position-tracking control by combining the PD controller and a low-pass filter. Further optimization of the position-loop controller helps improve the dynamic performance of the system. The simulation results indicate that the response curves of the proposed PD-LADRC control are smother than those of the Quantitative Feedback Theory (QFT) based controller; the settling time of the PD-LADRC system is 10.1 s and reduces by about 8.2 s than that of the QFT. While using a better position controller reduces settling time to 5 s. The PD-LADRC system also has better wind-disturbance rejection; the worst disturbance response reduces at the gearbox by 68.3% and 60% at the dish, and the recovery time reduces by more than 15 s than the QFT-based controller. In addition, besides easier parameter tuning, the proposed PD-LADRC has better robustness to systematic parameter perturbations and minor tracking error rms in position tracking. |
| DOI | 10.1088/1538-3873/acff86 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | This work was supported by the National Key Research and Development Program of China under No. 2021YFC2203501, and the Xinjiang Tianchi Doctoral Project under No. E1390602. We thank all the people that helped to complete this paper, especially Cheng Wen a[2021YFC2203501] ; National Key Research and Development Program of China[E1390602] ; Xinjiang Tianchi Doctoral Project |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001092081800001 |
| Publisher | IOP Publishing Ltd |
| Funding Organization | This work was supported by the National Key Research and Development Program of China under No. 2021YFC2203501, and the Xinjiang Tianchi Doctoral Project under No. E1390602. We thank all the people that helped to complete this paper, especially Cheng Wen a ; National Key Research and Development Program of China ; Xinjiang Tianchi Doctoral Project |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5561 |
| Collection | 射电天文研究室_脉冲星研究团组 110米口径全可动射电望远镜（QTT）_技术成果 射电天文研究室_天线技术实验室 |
| Corresponding Author | Li, Ning |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100083, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Li, Ning,Wang, Na,Liu, Zhiyong,et al. Active Disturbance Rejection-based Double-loop Control Design for Large Antenna's Servo System[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2023,135(1053):115001. |
| APA | Li, Ning,Wang, Na,Liu, Zhiyong,&Yang, Lei.(2023).Active Disturbance Rejection-based Double-loop Control Design for Large Antenna's Servo System.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,135(1053),115001. |
| MLA | Li, Ning,et al."Active Disturbance Rejection-based Double-loop Control Design for Large Antenna's Servo System".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 135.1053(2023):115001. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Li-2023-Active Distu（2881KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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