航空学报 > 2020, Vol. 41 Issue (S1): 723747-723747   doi: 10.7527/S1000-6893.2019.23747

基于算子理论的系统可重构性评价与自主重构

徐赫屿1, 王大轶2, 李文博1, 刘成瑞1, 符方舟3   

  1. 1. 中国空间技术研究院 北京控制工程研究所, 北京 100190;
    2. 中国空间技术研究院 北京空间飞行器总体设计部, 北京 100194;
    3. 中山大学 航空航天学院, 广州 510006
  • 收稿日期:2019-12-13 修回日期:2019-12-25 出版日期:2020-06-30 发布日期:2019-12-26
  • 通讯作者: 王大轶 E-mail:dayiwang@163.com
  • 基金资助:
    国家杰出青年科学基金(61525301);国家自然科学基金(61690215,61640304,61573060,61203093)

Reconfigurability evaluation and autonomous reconfiguration of systems based on operator theory

XU Heyu1, WANG Dayi2, LI Wenbo1, LIU Chengrui1, FU Fangzhou3   

  1. 1. Beijing Institute of Control Engineering, China Academy of Space Technology, Beijing 100190, China;
    2. Beijing Institute of Spacecraft System Engineering, China Academy of Space Technology, Beijing 100194, China;
    3. School of Aeronautics and Astronautics, Sun Yat-sen University, Guangzhou 510006, China
  • Received:2019-12-13 Revised:2019-12-25 Online:2020-06-30 Published:2019-12-26
  • Supported by:
    National Science Fund for Distinguished Young Scholars (61525301); National Natural Science Foundation of China (61690215,61640304,61573060,61203093)

摘要: 针对航天器在轨资源严重受限(包括计算资源、硬件资源以及能量资源)的特点,开展了基于算子理论的航天器姿态控制系统可重构性评价方法和自主重构策略的研究。首先,基于稳定核表示(SKR)和稳定像表示(SIR)的算子理论给出了系统可重构性评价指标,定量地描述了系统的重构能力,突破了基于互质分解理论的系统可重构性评价方法对系统线性性质的局限。同时,基于以上结果,给出了系统可重构性最大边界,为设计人员设计自主重构策略提供了明确的指标;然后,通过在设计阶段考虑系统可重构性,充分挖掘并利用系统重构潜力,为自主重构策略的设计提供理论指导;最后,通过仿真验证了所提方法的有效性和正确性。

关键词: 航天器姿态控制系统, 可重构性评价, 自主重构, 稳定核表示, 稳定像表示

Abstract: The spacecraft in orbit resources are severely limited, including computing resources, hardware resources, and energy resources. In this paper, the evaluation of reconfigurability and the autonomous reconfiguration strategy for attitude control system of spacecraft are studied based on the operator theory. Firstly, based on the operator theory of Stable Kernel Representation (SKR) and Stable Image Representation (SIR), the evaluation index of system reconfigurability is given, and the ability of system reconfigurability is described quantitatively. The theory breaks through the limitation of the evaluation method of system reconfigurability based on the theory of coprime decomposition to the linear property of system. At the same time, based on the above results, the maximum boundary of system reconfigurability is given, which provides a clear index for designers to design autonomous reconfiguration strategies. Then, by considering the system reconfigurability in the design stage, the system reconfigurability potential is fully exploited and utilized, providing theoretical guidance for the design of autonomous reconfiguration strategy. Finally, the validity and correctness of the proposed method are verified by a simulation example.

Key words: spacecraft attitude control system, reconfigurability evaluation, autonomous reconfiguration, stable kernel representation, stable image representation

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