环形拼接太阳望远镜主镜控制系统的频率特性  

Frequency Characteristics of Primary Mirror Control System in Segmented Ring Solar Telescope

作　　者：郭泰[1,2,3] 戴懿纯 杨德华[4] 王斌[1,2,3] 金振宇 Guo Tai;Dai Yichun;Yang Dehua;Wang Bin;Jin Zhenyu(Yunnan Observatories,Chinese Academy of Sciences,Kunming,Yunnan 650216,China;Engineering Laboratory on Applied Astronomy of Yunnan,Kunming,Yunnan 650216,China;Nanjing University of Aeronautics and Astronautics,Nanjing,Jiangsu 211106,China;Center for Astronomical Mega-Science,Chinese Academy of Sciences,Beijing 100012,Chin;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院云南天文台,云南昆明650216 [2]中国科学院天文大科学研究中心,北京100012 [3]中国科学院大学,北京100049 [4]南京航空航天大学,江苏南京211106 [5]云南省应用天文技术工程实验室,云南昆明650216

出　　处：《光学学报》2018年第11期285-295,共11页Acta Optica Sinica

基　　金：国家自然科学基金(11573068;11303090)

摘　　要：建立了8 m环形拼接太阳望远镜(8-m-RST)的主镜控制系统的数字控制器模型。通过提取系统模型的频率特性参数,获得了采样周期、相对稳定性、积分增益与控制带宽之间的关系。引入脉动风干扰模型,通过仿真验证了主镜系统在平均风速较低的脉动风扰动影响下的性能。研究结果表明,8-m-RST的主镜控制系统稳定且控制带宽满足0.2 Hz的设计要求,能有效抑制2 m/s平均风速的干扰,对8-m-RST结构设计的改进、倾斜传感器和控制器的设计都有重要的参考价值。The digital controller model of the primary mirror control system in an 8 m segmented ring solar telescope （8-m-RST） is established. The relationships between the sampling period, relative stability, integral gain and the control bandwidth are obtained by means of the extraction of the frequency characteristic parameters from the system model. In addition, with the introduction of a pulsed wind disturbance model, the performance of the primary mirror system under the disturbance of a pulsed wind with a low average speed is tested by simulation. The research results show that, the primary mirror control system in the 8-m-RST is stable and its control width meets the requirement of 0.2 Hz. Moreover, it can effectively suppress the disturbance from a wind with an average speed of 2 m·s-1. These results have important references to the structural improvement and the design of the tilt sensor and the controller in the 8-m-RST.

关 键 词：光学设计 主动光学 拼接镜面 中国巨型太阳望远镜 频率特性 系统建模 

分 类 号：TH751[机械工程—仪器科学与技术]