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提出应用质量矩控制技术实现纳卫星轨道机动过程中的姿态稳定控制。在设计出质量矩滑块构型后,利用动量和动量矩定理推导了八自由度(DOF)动力学模型,并根据动力学分析结果建立了简化控制模型。以此为基础,基于全局滑模控制理论设计了俯仰偏航通道姿态稳定和滑块位置跟踪的鲁棒控制器,并在参数不确定性条件下对控制系统进行了仿真,结果表明:所设计的二维质量矩控制系统能快速控制卫星姿态,并对系统扰动具有较强的鲁棒性,可以应用于纳卫星变轨段的姿态控制。
The application of mass moment control technique is proposed to realize the attitude stability control in nanor satellite orbit maneuvering. After designing the mass moment slider configuration, the DOF kinetic model was derived by using the momentum and moment theorem, and the simplified control model was established based on the dynamic analysis results. Based on this, a robust controller is designed based on the global sliding mode control theory to stabilize the attitude of the yaw channel and to track the position of the slider. The control system is simulated under the parameter uncertainties. The results show that the designed controller The two-dimensional mass moment control system can quickly control the attitude of the satellite and has strong robustness to the system disturbance. It can be applied to the attitude control of the satellite orbit.