针对过驱动卫星中期望控制力矩到执行机构输出力矩的控制分配问题,考虑执行机构的最大输出力矩约束,研究了一种基于分布估计算法的动态控制容错分配策略,根据卫星当前任务与故障信息在线选择合适的执行机构。最后,对本文研究的动态容错控制分配策略进行了数学仿真实验,仿真结果验证了该策略的有效性。 Aiming at the control assignment of the desired torque from over-driven satellites to the output torque of actuator, considering the constraint of maximum output torque of actuator, a distributed fault tolerance allocation strategy based on distribution estimation algorithm is studied. According to the current task and fault information of satellite Choose the appropriate actuator. Finally, the mathematical simulation of the dynamic fault-tolerant control allocation strategy studied in this paper is carried out. The simulation results verify the effectiveness of the strategy.