当前位置: X-MOL 学术Aerosp. Sci. Technol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Distributed optimal control allocation for 6-dof spacecraft with redundant thrusters
Aerospace Science and Technology ( IF 5.0 ) Pub Date : 2021-07-21 , DOI: 10.1016/j.ast.2021.106971
Xiaoyu Lang 1 , Anton de Ruiter 1
Affiliation  

Control allocation for 6-dof spacecraft maneuvers is considered. Retired spacecraft, whose own control system is inoperable, can be reused by installing multiple cellular thruster modules to provide thrusts for translational and rotational control. Such cellular thruster modules collaborate with their neighbors in a network topology to calculate an optimal distribution matrix for thrust allocation. A pseudo-inverse optimal thrust allocation scheme is extended to a distributed iteration algorithm to enable this optimal problem to be solved by cellular thruster modules in a distributed manner. Subsequently, a norm-based distributed pseudo-inverse optimal thrust allocation scheme is developed to solve the same optimal thrust allocation problem. The syntheses of two distributed optimal thrust allocation schemes are discussed. Numerical simulations are demonstrated in the end to show the effectiveness of two proposed distributed thrust allocation schemes. Performance comparisons between two schemes are analyzed as well.



中文翻译:

带冗余推进器的六自由度航天器分布式优化控制分配

考虑了 6 自由度航天器机动的控制分配。退役的航天器,其自身的控制系统无法运行,可以通过安装多个蜂窝式推进器模块来重复使用,为平移和旋转控制提供推力。这种蜂窝推进器模块与网络拓扑中的邻居合作,以计算推力分配的最佳分配矩阵。将伪逆最优推力分配方案扩展到分布式迭代算法,使该最优问题能够由蜂窝推进器模块以分布式方式解决。随后,开发了一种基于范数的分布式伪逆最优推力分配方案来解决相同的最优推力分配问题。讨论了两种分布式最优推力分配方案的综合。最后通过数值模拟证明了两种提出的分布式推力分配方案的有效性。还分析了两种方案之间的性能比较。

更新日期:2021-08-10
down
wechat
bug