红外与激光工程, 2018, 47 (12): 1237001, 网络出版: 2019-01-10   

提高大口径望远镜控制系统闭环带宽的方法

Methods of improving closed-loop bandwidth for large telescope control systems
作者单位
中国科学院长春光学精密机械与物理研究所, 吉林 长春 130033
摘要
为了提高大口径望远镜的抗风载扰动能力和对目标的跟踪精度, 要求望远镜控制系统有较好的动态性能和稳态跟踪精度, 望远镜的闭环控制带宽决定了控制系统的跟踪性能。因此, 首先根据望远镜结构的二质弹簧质量模型, 分析影响望远镜控制系统闭环带宽和动态响应的因素, 进而介绍提高闭环控制系统带宽的两种方法: 结构滤波器方法和加速度反馈控制方法; 然后, 详细分析了结构滤波器的设计方法及其望远镜控制系统中的应用; 最后, 分析了基于加速度反馈控制的设计方法以及该控制策略对提高望远镜控制系统闭环带宽的有效性。通过实验结果可以看出, 加速度反馈控制方法对提高望远镜镜控制系统闭环带宽更加有效。
Abstract
In order to improve the performance of perturbation rejection and the accuracy of tracking for the large telescope, the control system of the telescope needs to have a good dynamic performance, which is due to the closed-loop bandwidth. Firstly, the factors that affect the close-loop bandwith and the dynamics of the telescope control system were analyzed, which were based on the two-mass spring-mass model of the telescope structure, and then two methods including structural filter and acceleration feedback methods which could improve the closed-loop bandwith of the control system, were introduced. Secondly, the application of the structural filter and acceleration feedback methods in the telescope control system was analyzed in detail. Lastly, the related problems that the structural filter was used in the telescope control system were analyzed and the effectiveness of acceleration-feedback control for improving the closed-loop bandwidth was introduced. The experimental results demonstrate that compared with the structural filter method, the acceleration-feedback provides a better technology to improving the closed-loop bandwidth of control system for the large telescopes.

邓永停, 李洪文, 王建立. 提高大口径望远镜控制系统闭环带宽的方法[J]. 红外与激光工程, 2018, 47(12): 1237001. Deng Yongting, Li Hongwen, Wang Jianli. Methods of improving closed-loop bandwidth for large telescope control systems[J]. Infrared and Laser Engineering, 2018, 47(12): 1237001.

本文已被 2 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!