宇航学报

宇航学报 ›› 2021, Vol. 42 ›› Issue (6): 749-756.doi: 10.3873/j.issn.1000-1328.2021.06.008

• 制导、导航、控制与电子 • 上一篇    下一篇

考虑动态控制分配的空天飞行器再入姿态复合控制设计

董哲，刘凯，李旦伟，章吉力   

  1. 1. 大连理工大学航空航天学院，大连 116024；2. 沈阳飞机设计研究所，沈阳 110035
  • 收稿日期:2021-02-05 修回日期:2021-04-21 出版日期:2021-06-15 发布日期:2021-07-23
  • 基金资助:
    国家自然科学基金（61603363）；航空科学基金（2019ZC063001）

A Dynamic Control Allocation Approach for Reentry Compound Attitude Control Design of Aerospace Vehicle

DONG Zhe, LIU Kai, LI Dan wei, ZHANG Ji li   

  1. 1. School of Aeronautics and Astronautics, Dalian University of Technology, Dalian 116024, China;
    2. Shenyang Aircraft Design and Research Institute, Shenyang 110035, China
  • Received:2021-02-05 Revised:2021-04-21 Online:2021-06-15 Published:2021-07-23

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摘要： 针对空天飞行器再入大气层阶段的直接力/气动力复合控制分配问题，设计了一种基于改进指标函数的动态控制分配律，兼顾了反作用控制系统燃料消耗和闭环控制系统响应速度需求。此外，针对空天飞行器面对称大攻角再入引发的横侧向气动强耦合问题，在预测控制律中引入了通道间交叉耦合反馈项，对姿控过程进行增稳。对比仿真结果表明，动态分配算法在提高了再入姿态控制精度的同时降低了反作用控制系统的燃料消耗；交叉耦合反馈项的引入，缓解了倾侧角指令突变对偏航通道稳定性的干扰影响。


关键词: 空天飞行器, 动态控制分配, 二次规划, 模型预测控制

Abstract: Aiming at the compound control allocation problem of heterogeneous actuators, an on demand dynamic control allocation law based on quadratic programming is designed. The allocation law takes the response speed of the actuators and the flow consumption of the reaction control system (RCS) as the optimization indexes, and cooperates with the allocation error index to realize the reasonable allocation of the moment command. In addition, aiming at the problem of strong lateral aerodynamic coupling, the cross coupling feedback term is introduced for stabilization. Finally, the comparison simulation results show that the on demand dynamic allocation algorithm improves the control accuracy and reduces the flow consumption of RCS; the introduction of the coupling coefficient alleviates the impact of the single channel command mutation on the stability of the coupled channel.


Key words: Aerospace vehicle, Dynamic control allocation, Quadratic programming, Model predictive control

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