Application of Intelligent Fuzzy PID Control Algorithm in Large Astronomical Telescope Tracking System | |
Xiajie Zhang1,2,3; Changzhi Ren1,2 | |
2018-07-06 | |
Conference Name | SPIE Ground-based and Airborne Telescopes VII(vol.10700) |
Source Publication | Ground-based and Airborne Telescopes VII |
Conference Date | 2018-6-10 |
Conference Place | Austin, Texas, United States |
Abstract |
The telescope tracking system is one big-inertia, multivariable, nonlinear, complex and strong coupling mechatronic system which is disturbed by some nonlinear disturbance such as torque ripple, wind disturbance and the cable drag force during the tracking process. In order to suppress the nonlinear disturbance and improve the tracking precision in large astronomical telescope, this paper explores one intelligent fuzzy control algorithm which contains engineers’ rich experimental experience and shows strong inductive ability. The simulation results show that the fuzzy controller is much stronger than traditional PID controller to suppress the nonlinear interference. The tests in the 1-meter telescope experimental platform also testify that it is very stable and the RMS of position tracking error is only 0.012″ in the superlow tracking speed 0.2″/s. While in the quick tracking speed, 6°/s with the acceleration 5°/s2, the RMS of position tracking error is only near to 1.8″. In conclusion, by the fuzzy control method designed in this paper, the dynamic response of the telescope tracking system has been improved effectively and the nonlinear interference has also been suppressed strong. What’s more, the tracking accuracy has been improved greatly. |
Keyword | Astronomical Telescope Direct Drive Nonlinear Disturbance Intelligent Fuzzy Control |
Subject Area | 天文技术与方法 |
Language | 英语 |
Document Type | 会议论文 |
Identifier | http://ir.niaot.ac.cn/handle/114a32/1542 |
Collection | 会议论文 |
Affiliation | 1.南京天文光学技术研究所 2.天文光学技术重点实验室 3.中国科学院大学 |
Recommended Citation GB/T 7714 | Xiajie Zhang,Changzhi Ren. Application of Intelligent Fuzzy PID Control Algorithm in Large Astronomical Telescope Tracking System[C],2018. |
Files in This Item: | Download All | |||||
File Name/Size | DocType | Version | Access | License | ||
Application of intel(606KB) | 会议论文 | 开放获取 | CC BY-NC-SA | View Download |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment