The invention discloses a spacecraft active-disturbance-rejection control method with time lag and actuator saturation. The method comprises the following steps: S1, establishing a spacecraft pose integrated kinetic model with communication time lag and actuator saturation; s2, designing an outer ring expansion state observer with a time delay predictor; s3, designing an outer ring active disturbance rejection controller; s4, designing an inner ring expansion state observer; and S5, designing an inner ring active disturbance rejection controller with an anti-saturation strategy. According to the spacecraft active-disturbance-rejection control method with time lag and actuator saturation, the adverse effect of external disturbance and internal disturbance on the system can be effectively avoided, and the communication time lag and the actuator saturation phenomenon are obviously inhibited; the position and attitude of the spacecraft can be accurately controlled within the controllable range of the actuator, sufficient guarantee is provided for smooth completion of tasks such as rendezvous and docking of the spacecraft, the good control effect is achieved, and the method is widely applied to other spacecraft attitude and orbit control systems.

    一种带有时滞和执行器饱和的航天器自抗扰控制方法,包括如下步骤:S1:建立带有通信时滞和执行器饱和的航天器位姿一体化动力学模型;S2:设计带有时滞预测器的外环扩张状态观测器;S3:设计外环自抗扰控制器;S4:设计内环扩张状态观测器;S5:设计带有抗饱和策略的内环自抗扰控制器。本发明所述的一种带有时滞和执行器饱和的航天器自抗扰控制方法,不仅可以有效避免外源扰动及内部扰动对系统造成的不利影响,还对通信时滞和执行器饱和现象有明显的抑制作用,能够确保在执行器可控范围内对航天器的位置和姿态实现精准的控制,为航天器交会对接等任务的顺利完成提供充分的保障,具有良好的控制效果,广泛应用于其他涉及航天器姿轨控制系统之中。


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    Title :

    Spacecraft active disturbance rejection control method with time delay and actuator saturation


    Additional title:

    一种带有时滞和执行器饱和的航天器自抗扰控制方法


    Contributors:
    YU YANG (author) / LI WENCHAO (author) / CHEN JIANLIN (author) / ZHANG YUHAO (author) / LIU ZONGZHE (author)

    Publication date :

    2024-08-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS