Application of structural filter to principal axis system of telescope

Yong-ting DENG; Hong-wen LI; Jian-li WANG; Jing LIU

doi:10.3788/OPE.20172504.0900

您当前的位置：

首页 >

文章列表页 >

Application of structural filter to principal axis system of telescope

Micro/Nano Technology and Fine Mechanics | 更新时间：2020-07-07

- Application of structural filter to principal axis system of telescope
- Optics and Precision Engineering Vol. 25, Issue 4, Pages: 900-909(2017)
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20172504.0900
  CLC： TH743;TH703
- Received：05 April 2016，
  
  Accepted：21 June 2016，
  
  Published：25 April 2017
- 稿件说明：
移动端阅览
Yong-ting DENG, Hong-wen LI, Jian-li WANG, et al. Application of structural filter to principal axis system of telescope[J]. Optics and precision engineering, 2017, 25(4): 900-909.
DOI：

Yong-ting DENG, Hong-wen LI, Jian-li WANG, et al. Application of structural filter to principal axis system of telescope[J]. Optics and precision engineering, 2017, 25(4): 900-909. DOI： 10.3788/OPE.20172504.0900.

摘要

为了提高望远镜控制系统的闭环带宽和动态性能，研究了结构滤波器对控制系统闭环性能的影响。根据望远镜机械跟踪架的弹簧质量模型推导了系统的传递函数，分析了电机和负载转动惯量与谐振频率的关系，设计了基于系统开环频率特性的结构滤波器。将设计的结构滤波器串联入控制回路，用于减小机械谐振的幅值。介绍了结构滤波器的设计方法，以及加入结构滤波器后对控制系统闭环性能的影响。最后，在2 m望远镜跟踪架转台上进行了验证实验。结果表明，加入结构滤波器后系统的闭环带宽由10 Hz提高到了13 Hz，有效地抑制了速度的稳态谐振，提高了望远镜控制系统的速度跟踪性能。得到的实验结果验证了结构滤波器能够有效地提高系统的动态性能。

Abstract

To improve the closed-loop bandwidth and dynamic performance of control system in a telescope

the effect of structural filters on the closed-loop performance of the control system was researched. According to the spring-mass model of mechanical tracking frame for the telescope

the transfer function of the system was deduced and the relation between the rotational inertias for electrical machines and loads and the resonant frequencies was analyzed. Then

a structural filter was designed based on frequency characteristics of an open-loop system

and it was added into the control loop to reduce the amplitude of mechanical resonance. The design method of the structural filter was introduced and influence of the added structural filter on the close-loop performance of control system was analyzed. Finally

a confirmatory experiment was performed on a rotary table of tracking frame for a 2-meter-high telescope. The experimental result shows that closed-loop bandwidth of the system increases from 10 Hz to 13 Hz after adding the structural filter

which effectively restrains the stable resonance of speed

improves the speed tracking performance of control system in the telescope. These results verify the effectiveness of the structural filter.

关键词

Keywords

references

ERM T, GUTIERREZ P. Integration and tuning of the VLT drive systems[J].Proceedings of SPIE, 2000, 4004:490-499.

SUÁREZ M, ROSICH J, ORTEGA J, et al.. The GTC main axis servos and control system[J].Proceedings of SPIE, 2008, 7019:70190J.

MARCHIORI G, RAMPINI F, LAPEYRE P. The European ALMA project:new design and technologies for innovative performances[J].Proceedings of SPIE, 2008, 7012:70120P.

FILGUEIRA J M, Rodriguez D. GTC control system:an overview[J].Proceedings of SPIE, 1998, 3351:2-12.

LEWIS H, LUPTON W, SIROTA M J, et al.. Pointing and tracking performance of the W.M. Keck Telescope[J]. Proceedings of SPIE, 1994, 2199:117-125.

ASHBY D S, MCKENNA D, BRYNNEL J G, et al.. The large binocular telescope mount control system architecture[J]. Proceedings of SPIE, 2006, 6274:627423.

王国民.天文光学望远镜轴系驱动方式发展概述[J].天文学进展, 2008, 25(4):364-374.

WANG G M. Review of drive style for astronomical optical telescope[J]. Progress in Astronomy, 2008, 25(4):364-374. (in Chinese)

LEE D H, LEE J H, AHN J W. Mechanical vibration reduction control of two-mass permanent magnet synchronous motor using adaptive notch filter with fast Fourier transform analysis[J]. IET Electric Power Applications, 2012, 6(7):455-461.

YANG S H M, WANG SH C. The detection of resonance frequency in motion control systems[J]. IEEE Transactions on Industry Applications, 2014, 50(5):3423-3427.

CLARK D, TREBISKYA T, POWELL K. A nonlinear disturbance-decoupled elevation axis controller for the multiple mirror telescope[J]. Proceedings of SPIE, 2008, 7019:70192J.

RAVENSBERGEN M. Main axis servo systems of the VLT[J]. Proceedings of SPIE, 1994, 2199:997-1005.

SIROTA M J, THOMPSON P M, JEX H R. Azimuth/Elevation servo performance of the W.M.KeckTelescope[J].Proceedings of SPIE, 1994, 2199:126-141.

ANDERSEN T, ENMARK A. Integrated Modeling of Telescopes[M]. New York:Springer, 2011.

邓永停. 4 m级望远镜主轴交流伺服控制系统研究[D]. 北京: 中国科学院大学, 2015.

DENG Y T. Research on AC control system for the 4m scale telescope main axis[D]. Beijing:University of Chinese Academy of Sciences, 2015. (in Chinese)

李洪文, 邓永停, 王建立.永磁同步电机速度控制器的全数字化集成[J].光学精密工程, 2015, 23(4):1105-1113.

LI H W, DENG Y T, WANG J L. Digital integration of PMSM speed controller based on FPGA[J]. Opt. and Precision Eng., 2015, 23(4):1105-1113.(in Chinese)

王宏佳, 杨明, 牛里, 等.永磁交流伺服系统速度控制器优化设计方法[J].电机与控制学报, 2012, 16(2):25-31.

WANG H J, YANG M, NIU L, et al.. Optimal speed controller design method for permanent magnet AC servo system[J]. Electric Machines and Control, 2012, 16(2):25-31. (in Chinese)

Views

514

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Dome design of large ground-based telescope

Design of high voltage amplifier for thousand-element adaptive piezoelectric deformable mirror

Measurement and optimization control of output characteristics of high frequency magnetostrictive transducer

Automatic focusing of Cassegrain telescope based on environmental temperature feedback

Dual-motor de-rotator system of prime focus alt-azimuth telescope with large field of view

Related Author

LIU Xiangyi

WANG Zhi

WANG Zhichen

LI Hongwen

YAO Kainan

Yang Leqiang

DENG Yongting

SHAO Meng

Related Institution

University of Chinese Academy of Sciences

Changchun Institute of Optics，Fine Mechanics and Physics，Chinese Academy of Sciences

State Key Laboratory of Reliability and Interlligence of Electrical Equipment，Hebei University of Technology

Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province， Hebei University of Technology

Key Laboratory of Atmospheric Optics，Anhui Institute of Optics and Fine Mechanics， Hefei Institutes of Physical Science，Chinese Academy of Sciences

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China Postal code：130033
Tel：0431-86176855 Email：gxjmgc@ciomp.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰