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Observer-based multi-objective parametric design for spacecraft with super flexible netted antennas
Science China Information Sciences ( IF 7.3 ) Pub Date : 2020-06-10 , DOI: 10.1007/s11432-020-2916-8
Guang-Ren Duan , Tian-Yi Zhao

A multi-objective parametric design method that based on the robust observer is proposed for the attitude control of satellites with super flexible netted antennas. First, a parametric observer-based controller is obtained based on the eigen-structure assignment theory. The closed-loop poles are assigned to desired positions or regions, and full degrees of freedom of the design, which are characterized by a set of parameters, are preserved under the proposed control law. Second, the obtained parameters are comprehensively optimized to make the closed-loop system have lower eigenvalue sensitivity, a smaller control gain, and stronger tolerance to high-order unmodeled dynamics and external disturbances. Finally, comparative simulations are carried out based on practical engineering parameters of a satellite in order to verify the effect of the proposed method, and also to show their superiority over the traditional proportional-integral-derivative (PID) controller with filters and the traditional dynamic compensators.



中文翻译:

具有超柔性网状天线的航天器基于观测器的多目标参数设计

提出了一种基于鲁棒观测器的多目标参数化设计方法,用于超柔性网状天线的卫星姿态控制。首先,基于特征结构分配理论,获得了基于参数观测器的控制器。将闭环极点分配给所需的位置或区域,并根据建议的控制法则保留以一组参数为特征的设计的完整自由度。其次,对获得的参数进行全面优化,以使闭环系统具有较低的特征值灵敏度,较小的控制增益以及对高阶非模型动力学和外部干扰的较强耐受性。最后,

更新日期:2020-06-10
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