Institutional Repository of Radio Astronomy Research Laboratory
| 基于DUEA的天线伺服控制系统仿真研究 | |
| Alternative Title | Simulation on antenna servo control system based on DUEA |
李宁1,2 ; 刘志勇1; 王娜1; 杨垒1,2
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| 2022-02-25 | |
| Source Publication | 航空学报
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| ISSN | 1000-6893 |
| Volume | 433Issue:2Pages:324986 |
| Contribution Rank | 1 |
| Abstract | 针对大口径射电望远镜天线易受到外部阵风等扰动、系统不确定及难以实现高指向精度的问题，提出基于回路成形和扰动/不确定观测补偿（DUEA）的思想来实现系统的高性能指标。首先使用混合灵敏度H∞设计方法对标称模型设计主控制器；然后针对影响系统输出的外部扰动以及系统不确定部分，基于等效输入扰动（EID）策略，使用广义扩张状态观测器（GESO）对其进行等效观测和补偿。仿真验证结果表明，在系统存在参数不确定以及输入扰动时，相较于单纯使用混合灵敏度H∞控制器，使用提出的H∞-GESO控制器的性能指标分散度为H∞控制器的指标分散度的66.7%及以下，天线控制性能得到了明显提升。 |
| Other Abstract | The large aperture radio telescope is vulnerable to exogenous disturbances such as gusts,systemic uncertainties, and difficulty in achieving high pointing accuracy.To realize the high-performance objective of the telescope control system, the method based on loop shaping and Disturbance/Uncertainty Estimation and Attenuation(DUEA)is proposed.First,a main controller for the nominal model is designed by the approach of mixed sensitivity Hto realize the optimal tracking to the input signal.Second,based on the idea of Equivalent Input Disturbance(EID),the external disturbances and systemic uncertainties affecting the system output are equivalently observed and compensated using a Generalized Extended State Observer( GESO).Finally,it is verified by simulation experiments that in the presence of parameter uncertainties as well as input disturbance in the system,the dispersion of system performance indexes using the proposed H -GESO controller is 66.7%and below than that only using the mixed sensitivity Hcontroller,and the antenna control performance is significantly improved. |
| Keyword | 射电望远镜 系统不确定 DUEA 混合灵敏度H∞ GESO |
| DOI | 10.7527/S1000-6893.2021.24986 |
| Indexed By | EI ; CSCD ; 中文核心期刊要目总览 |
| Language | 中文 |
| CSCD ID | CSCD:7155922 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5095 |
| Collection | 射电天文研究室_数字技术实验室 110米口径全可动射电望远镜（QTT）_技术成果 射电天文研究室_脉冲星研究团组 |
| Corresponding Author | 王娜 |
| Affiliation | 1.中国科学院新疆天文台,乌鲁木齐 830011; 2.中国科学院大学天文与空间科学学院,北京 100083 |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | 李宁,刘志勇,王娜,等. 基于DUEA的天线伺服控制系统仿真研究[J]. 航空学报,2022,433(2):324986. |
| APA | 李宁,刘志勇,王娜,&杨垒.(2022).基于DUEA的天线伺服控制系统仿真研究.航空学报,433(2),324986. |
| MLA | 李宁,et al."基于DUEA的天线伺服控制系统仿真研究".航空学报 433.2(2022):324986. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 李宁-2022-基于DUEA的天线伺服控（7176KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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