The invention discloses a spacecraft configuration maintenance attitude-orbit coupling collaborative iterative learning control method, and belongs to the technical field of space. The implementation method comprises the steps that a six-degree-of-freedom kinetic model is established based on a Lie group SE (3) frame, the attitude and orbit coupling problem caused by thruster installation errors in actual engineering is fully considered, the configuration keeping precision is improved, and the unwinding problem caused in a traditional six-degree-of-freedom dual quaternion representation method is avoided. On the basis, a collaborative iterative learning control method is designed, under the condition that an accurate disturbance model is unknown, the influence of disturbance on configuration keeping is counteracted through iterative learning, adjustment time and steady-state errors are considered, the adjustment time is short, meanwhile, the small steady-state errors can be achieved, and the stability of the system is improved. That is to say, the high-precision six-degree-of-freedom configuration of the spacecraft is maintained through attitude and orbit coupling collaborative iterative learning control. The method does not depend on an accurate disturbance model, the adjustment time is shortened, steady-state errors are reduced, and the speed and precision of spacecraft configuration keeping are improved.

    本发明公开的航天器构型保持姿轨耦合协同迭代学习控制方法,属于空间技术领域。本发明实现方法为:基于李群SE(3)框架建立六自由度动力学模型,充分考虑实际工程中推力器安装误差导致的姿轨耦合问题,提高构型保持精度,并避免传统六自由度对偶四元数表示方法中导致的退绕问题。在此基础上,设计协同迭代学习控制方法,实现在精确扰动模型未知的情况下,通过迭代学习抵消扰动对构型保持的影响,兼顾调节时间和稳态误差,实现在调节时间较短的同时还能够有较小的稳态误差,即通过姿轨耦合协同迭代学习控制实现航天器高精度六自由度构型保持。本发明能够不依赖于精确扰动模型,缩短调节时间,减少稳态误差,提高航天器构型保持的速度和精度。


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    Titel :

    Spacecraft configuration maintenance attitude-orbit coupling collaborative iterative learning control method


    Weitere Titelangaben:

    航天器构型保持姿轨耦合协同迭代学习控制方法


    Beteiligte:
    LONG JIATENG (Autor:in) / GUO HAO (Autor:in) / ZHU SHENGYING (Autor:in) / XU RUI (Autor:in) / LIANG ZIXUAN (Autor:in)

    Erscheinungsdatum :

    18.04.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64G Raumfahrt , COSMONAUTICS




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