本项目围绕空间控制力矩陀螺的不确定耦合动力学、不确定空间环境下的变结构控制策略、多源强耦合扰动的重复补偿策略以及实验研究开展工作。研究控制力矩陀螺在空间不确定耦合条件下的动力学不确定因素及相互耦合关系，建立一种不确定耦合动力学；分析空间环境及系统参数变化对控制力矩陀螺控制性能的影响，采用基于有限时间滑模变结构控制策略解决控制力矩陀螺的鲁棒控制问题；利用重复控制思想设计一种扰动补偿器，结合有限时间滑模变结构控制策略解决多源强耦合扰动抑制的难点问题；最后，建立实验平台，进行提出方法的实验研究。本课题旨在基础理论方法和关键技术两个层面解决控制力矩陀螺目前存在的在不确定空间环境和多源强耦合扰动条件下控制性能难以进一步提高的问题，对于提高我国高精度空间平台高性能姿控执行机构的研制水平具有重要研究价值和现实意义。

In this project, the control moment gyro (CMG) used on space is researched from the aspects of the uncertain coupling dynamics, the variable structure control (VSC) strategy under the uncertain space environment, the repetitive compensation strategy for multi-source and strong coupling disturbance, and the experimental study. The uncertain coupling dynamic influencing factors and their relationships will be investigated, and the uncertain coupling dynamics will be established. Then,the influences of space environment and system parameters for the CMG will be analyzed, and the finite time sliding mode control strategy will be introduced to solve the robust control problem.After that, disturbance compensator based on repetitive control will be designed, combining with the finite time sliding mode control strategy to solve the key problem of multi-source and strong coupling disturbance attenuation. Finally, experiment platform will be established for experiment studies of the proposed strategies. This project aims to theoretically and technologically solve the key problem of further improvement of control performance under the uncertain space environment and multi-source and strong coupling disturbance for the CMG. This project has important research value and practical significance for improving the development level of high-performance attitude control actuators of high precision space platform.