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题名:
Low velocity tracking control based ADRC for large-scale telescope system
作者: Cai, Huaxiang1,2,3; Huang, Yongmei1,2; Du, Junfeng1,2; Tang, Tao1,2; Zuo, Dan1,2,3
出版日期: 2015
会议名称: Proceedings of SPIE - The International Society for Optical Engineering
会议日期: 2015
学科分类: Closed loop control systems - Closed loop systems - Disturbance rejection - State estimation - Telescopes - Velocity
DOI: 10.1117/12.2196799
中文摘要: In this paper, an improved Active Disturbance Rejection control (ADRC) method is proposed to enhance the tracking precision of telescope if the telescope runs in a low velocity. Low velocity telescope system usually suffers some obvious nonlinear disturbances, such as nonlinear friction and unknown external disturbance. Thereby, to ensure the tracking precision, multiple loops control structure is a common control method in telescope system, which includes current loop, velocity loop and position loop. The proposed control method is used in the velocity loop which consists of a PD controller and an Extend State Observer (ESO). The ESO is designed to estimate the disturbance involved in the telescope system. Besides, the PD controller is designed to stabilize the closed-loop system. Furthermore, this control method theoretically guarantees a prescribed tracking performance and final tracking accuracy. Finally, the experiment results show that the proposed control method has excellent performance for reducing the tracking error of low velocity. © 2015 SPIE.
英文摘要: In this paper, an improved Active Disturbance Rejection control (ADRC) method is proposed to enhance the tracking precision of telescope if the telescope runs in a low velocity. Low velocity telescope system usually suffers some obvious nonlinear disturbances, such as nonlinear friction and unknown external disturbance. Thereby, to ensure the tracking precision, multiple loops control structure is a common control method in telescope system, which includes current loop, velocity loop and position loop. The proposed control method is used in the velocity loop which consists of a PD controller and an Extend State Observer (ESO). The ESO is designed to estimate the disturbance involved in the telescope system. Besides, the PD controller is designed to stabilize the closed-loop system. Furthermore, this control method theoretically guarantees a prescribed tracking performance and final tracking accuracy. Finally, the experiment results show that the proposed control method has excellent performance for reducing the tracking error of low velocity. © 2015 SPIE.
收录类别: SCI ; Ei
语种: 英语
卷号: 9678
ISSN号: 0277-786X
文章类型: 会议论文
页码: 967803
Citation statistics:
内容类型: 会议论文
URI标识: http://ir.ioe.ac.cn/handle/181551/7426
Appears in Collections:光电工程总体研究室(一室)_会议论文

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作者单位: 1. Chinese Academy of Sciences Institute of Optics and Electronics, P.O. Box 350, Shuangliu Chengdu, China
2. Key laboratory of beam control of Optical Engineering, Chinese Academy of Sciences, Chengdu, China
3. University of Chinese Academy of Sciences, Beijing, China

Recommended Citation:
Cai, Huaxiang,Huang, Yongmei,Du, Junfeng,et al. Low velocity tracking control based ADRC for large-scale telescope system[C]. 见:Proceedings of SPIE - The International Society for Optical Engineering. 2015.
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