空间站姿态控制和动量管理研究

The Research on Attitude Control and Momentum Management of the Space Station

空间站在利用控制力矩陀螺 (CMG)进行姿态控制的过程中 ,由CMG产生的内力矩使空间站角动量重新调整分配 ,会引起控制力矩陀螺角动量随时间的累积 ,从而导致角动量的饱和。本文在空间站姿态控制与动量管理 (ACMM )线性化模型基础上 ,首先建立了不考虑扰动抑制下的控制系统稳定模型 ,其次分析了考虑扰动抑制下的控制器设计 ,引入线性系统有关理论 ,利用内模原理实现对扰动抑制的鲁棒控制 。

Inner moment arisen by control moment gyro (CMG) during attitude control process of space station will cause redistributing and adjusting of angle momentum. This will result in saturation of angle momentum due to accumulation of angle momentum of CMG with time passing. Based on the linearized model of attitude control and momentum management (ACMM),control systems without considering and considering disturbance restrains are constructed respectively. Using internal model control technique actualizes the external disturbance torque restrain. Finally, simulation proves its validity.