Study on spacecraft formation capture control method based on disturbance observer

被引：1

作者：

Wang X. ^{[1
]}

Sun C. ^{[1
]}

Fang Q. ^{[1
]}

Li Q. ^{[1
,2
]}

Song S. ^{[1
]}

机构：

[1] School of Astronautics, Northwestern Polytechnical University, Xi'an

[2] Xi'an Modern Control Technology Research Institute, Xi'an

来源：

Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University | 2021年 / 39卷 / 05期

关键词：

Cooperative collision avoidance control; Disturbance observer; Non-cooperative target capture; Spacecraft formation;

D O I：

10.1051/jnwpu/20213951012

中图分类号：

学科分类号：

摘要：

In the presence of compound disturbances, a multi-spacecraft cooperative collision avoidance capture control method based on disturbance observer was proposed, which can solve the problem of low speed rolling non-cooperative target close-range capture in space. Firstly, a relative motion model of attitude and orbit coupling is established. Secondly, the disturbance observer is used to estimate and cancel the compound disturbance in the capture process. At the same time, the hyperquadric surfaces are used to describe the shape of space non-cooperative targets and capture spacecraft to establish a composite artificial potential field, and a robust control law with collision avoidance function is also designed. Finally, the stability of the controlled system is proved by using Lyapunov function, and the collision avoidance performance of the system is analyzed. Numerical simulations are carried out to evaluate the effectiveness of the proposed control scheme. © 2021 Journal of Northwestern Polytechnical University.

引用

页码：1012 / 1021

页数：9

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