Application of Intelligent Fuzzy PID Control Algorithm in Large Astronomical Telescope Tracking System | |
Xiajie Zhang1,2,3; Changzhi Ren1,2 | |
2018-07-06 | |
会议名称 | SPIE Ground-based and Airborne Telescopes VII(vol.10700) |
会议日期 | 2018-6-10 |
会议地点 | Austin, Texas, United States |
关键词 | Astronomical telescope Direct drive Nonlinear disturbance Intelligent fuzzy control |
英文摘要 |
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. |
会议录 | Ground-based and Airborne Telescopes VII |
学科主题 | 天文技术与方法 |
语种 | 英语 |
内容类型 | 会议论文 |
源URL | [http://ir.niaot.ac.cn/handle/114a32/1542] |
专题 | 南京天文光学技术研究所_中科院南京天光所知识成果_会议论文 南京天文光学技术研究所_望远镜工程中心_会议论文 |
作者单位 | 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 |
推荐引用方式 GB/T 7714 | Xiajie Zhang,Changzhi Ren. Application of Intelligent Fuzzy PID Control Algorithm in Large Astronomical Telescope Tracking System[C]. 见:SPIE Ground-based and Airborne Telescopes VII(vol.10700). Austin, Texas, United States. 2018-6-10. |
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