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针对大型挠性空间结构频率低、阻尼小，刚体与各挠性模态之间互相耦合等特点，提出了一种双回路控制器的设计方法．回路的设计采用了最优滑动模态的变结构设计方法．且考虑了鲁棒稳定性问题．最后，给出了结果的数字仿真，从仿真曲线可以看出，对于基于模态截断的大型挠性空间飞行器,该设计方法具有一定的鲁棒性．
In view of the characteristics of large flexible space structure such as low frequency, small damping and mutual coupling between rigid body and each flexible mode, a design method of double loop controller is proposed. The circuit design adopts the variable structure design method of optimal sliding mode. The robust stability problem is considered. Finally, the numerical simulation of the results is given. It can be seen from the simulation curves that this design method has some robustness to large flexible space vehicles based on modal truncation.