轮控小卫星姿态大角度机动递阶饱和控制器设计

针对采用反作用飞轮的小卫星姿态大角度机动控制，在反作用轮输出力矩受限、速率饱和的约束条件下，采用递阶饱和方法，即限制卫星每次姿态机动的最大偏差，对姿态偏差进行逐次消除。在毋需获知最优机动轨迹规划的情况下，可用于卫星任意时刻的姿态捕获和机动控制。数学仿真结果表明，本文设计的控制算．去能够实现快速姿态机动任务，具有良好的鲁棒性。

Cascade-Saturation Controller for Micro-Satellite Large Angle Attitude Maneuvers Using Reaction Wheels

The cascade-saturation method, which the maximum deviation for each maneuver was limited, was used to eliminate the attitude error successively for large angle attitude maneuvers of micro-satellite using reaction wheels under the conditions of output torque limited and rate saturated in this paper. This method would be applied for the attitude capture and maneuvers control of the satellite at any time when the optimum maneuver trajectory was unknown. The simulation results showed that the method put forward could implement the fast maneuvers with good robustness.