Structure of distributed control system in Seimei telescope
Structure of distributed control system in Seimei telescope
复制标题
晴明望远镜集散控制系统结构
DOI：
10.1080/18824889.2021.1913879
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
Katsuhiko Yamada
中科院分区：
文献类型：
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作者：
Ichiro Jikuya;Daichi Uchida;Masaru Kino;Mikio Kurita;Katsuhiko Yamada
对于带有分段主镜的天文望远镜来说，分段镜控制系统是必不可少的。本研究主要针对晴明望远镜的集散控制系统（DCS）进行研究。通过分析DCS中的零-非零结构，发现了一个有趣的层次结构，并将54个增益合理地分为4组。给出了DCS增益选择的设计实例，使闭环极点位置与集中控制系统（CCS）相似。通过数值计算稳定区域和优化DCS与CCS闭环极点之间的最大距离，证明了考虑分层结构的增益选择自由是有效的。
A segmented mirror control system is indispensable for operating an astronomical telescope which is equipped with a segmented primary mirror. In this study, we focus on the distributed control system (DCS) proposed for Seimei telescope. An interesting hierarchical structure is found by analysing its zero–nonzero structure in the DCS, and then, 54 gains are reasonably classified into 4 groups. Design examples for selecting gains of the DCS are presented so that the closed loop pole locations are similar to those of the centralized control system (CCS). The freedom in the selections of gains by taking account of the hierarchical structure is shown to be effective by numerically evaluating the stability region and by optimizing the maximum distance between the closed loop poles of DCS and CCS.