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Linear ADRC Application in Position Loop on the Nanshan 26-m Radio Telescope

文献类型：期刊论文

作者Li, Ning1,3; Xu, Qian1,2; Wang, Na1,2; Wang, Shiqiang1
刊名INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION
出版日期2025
卷号2025期号:1页码:4365724
关键词antidisturbance fast and nonovershoot LADRC PID position-loop controller radio telescope
ISSN号1687-5869
DOI10.1155/ijap/4365724
产权排序1
英文摘要In this paper, the linear active disturbance rejection control (LADRC) research is applied to the antenna's position system of the Nanshan 26-m radio telescope (NSRT26). The electromechanical servo system, such as a radio telescope, usually employs a conventional integer-order PID controller in its position loop to achieve set-value tracking and rejection of load disturbances. Since the sensitivity of the derivative (D) term to the measurement noise and the saturation of the integral (I) term, the PID control often weakens the actions of the D and I, mainly manifesting as a proportional (P) control. LADRC obtains a better control performance than PID using an extended state observer (ESO) to overcome the sensitivity to measurement noise and model uncertainties and a prior-derivative control structure to attenuate the overshoot during dynamic switching. The equivalent form of first-order LADRC, e.g., a combination of a tracking-error compensator of PI with a low-pass filter (PI-F) and a command-feedforward compensator, also explains the insensitivity of the LADRC to measurement noise. Both simulational and experimental results show that the system using the PI-F of the 1st-order LADRC control is fast and nonovershoot, and its settling time is reduced by 50% compared to the existing traditional PID control, which is important for improving the radio telescope observation efficiency and gain/phase-reference tracking. When measurement noise and disturbances occur, LADRC compensates for them, resulting in improved command response performance for the system.
WOS关键词DISTURBANCE REJECTION ; DESIGN
资助项目National Natural Science Foundation of China
WOS研究方向Engineering ; Telecommunications
语种英语
WOS记录号WOS:001564110500001
出版者WILEY
资助机构National Natural Science Foundation of China
源URL[http://ir.xao.ac.cn/handle/45760611-7/8098]  
专题射电天文研究室_天线技术实验室
通讯作者Li, Ning; Wang, Na
作者单位1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
2.Lab Radio Astron & Technol, Beijing 100101, Peoples R China
3.Dongguan Univ Technol, Sch Elect Engn & Intelligentizat, Dongguan 523808, Peoples R China
推荐引用方式
GB/T 7714		 Li, Ning,Xu, Qian,Wang, Na,et al. Linear ADRC Application in Position Loop on the Nanshan 26-m Radio Telescope[J]. INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION,2025,2025(1):4365724.
APA Li, Ning,Xu, Qian,Wang, Na,&Wang, Shiqiang.(2025).Linear ADRC Application in Position Loop on the Nanshan 26-m Radio Telescope.INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION,2025(1),4365724.
MLA Li, Ning,et al."Linear ADRC Application in Position Loop on the Nanshan 26-m Radio Telescope".INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION 2025.1(2025):4365724.

入库方式： OAI收割

来源：新疆天文台

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