The invention relates to an integrated control method for long-distance pursuit and short-distance rendezvous of a small spacecraft, and belongs to the technical field of aerospace engineering. According to the method, an orbital kinetic equation and environmental disturbance of a small spacecraft are considered, and kinetic models of a target spacecraft and a tracking spacecraft are established; a nonlinear model predictive control framework is designed to realize motion control of a tracking spacecraft, so that a satellite realizes rendezvous control with a tracking target under the condition of ensuring saturation constraint of an actuator; furthermore, a fuzzy logic method is used for carrying out fuzzy classification on the relative distance between the two spacecrafts, and model prediction control and a fuzzy logic parameter adjustment controller are used for controlling and tracking the spacecrafts, so that the spacecrafts can automatically adjust the weights of the position, the speed and the thrust when the spacecrafts are in long and short distances. And integrated control of long-distance pursuit and short-distance rendezvous of the spacecraft is realized.

    本发明涉及一种小型航天器远距离追击与近距离交会一体化控制方法,属于航天工程技术领域。该方法考虑小型航天器的轨道动力学方程以及环境扰动,建立目标航天器和追踪航天器的动力学模型;设计一种非线性模型预测控制框架来实现对追踪航天器的运动控制,使得卫星在保证执行器饱和约束的情况下实现与追踪目标的交会控制;并且进一步运用模糊逻辑方法将两航天器间相对距离进行模糊化分类,利用模型预测控制加模糊逻辑调参控制器控制追踪航天器,使得航天器在远近距离时能够自动调节位置、速度和推力的权重,实现航天器远距离追击与近距离交会一体化控制。


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    Title :

    Small spacecraft long-distance pursuit and close-distance rendezvous integrated control method


    Additional title:

    一种小型航天器远距离追击与近距离交会一体化控制方法


    Contributors:
    HUANG JINGLI (author) / HUANG JIE (author) / LIU YIFAN (author) / CHEN YUTAO (author) / ZHANG JIANCHENG (author)

    Publication date :

    2023-10-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS