Spacecraft Body-Fixed Hovering Over a Tumbling Object with Equivalent Regulator

被引：0

作者：

Xu, Zhanpeng ^{[1
]}

Bai, Yuzhu ^{[1
]}

Zhang, Xiang ^{[1
]}

Huang, Yiyong ^{[1
]}

Chen, Xiaoqian ^{[1
]}

Zhao, Yong ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Aerosp Sci & Engn, Changsha, Hunan, Peoples R China

来源：

2017 3RD INTERNATIONAL CONFERENCE ON CONTROL, AUTOMATION AND ROBOTICS (ICCAR) | 2017年

基金：

中国国家自然科学基金;

关键词：

close-proximity operation; spacecraft body-fixed hovering; optimal tracking control; state-dependent Riccati equation; equivalent regulator;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Relative hovering of spacecraft is a new type of close-proximity operation. This work deals with the body-fixed hovering over a tumbling object. Initially, the dynamics of the virtual hovering point over the tumbling object in local-vertical-local-horizon(LVLH) frame is derived with considering the rotation of the object. Then, the body-fixed hovering control is converted into an optimal tracking control problem. Based on the state-dependent Riccati equation(SDRE), the equivalent regulator is put up with as nearly optimal regulator, and compared with the modified servo controller. Numerical simulation results show that the equivalent regulator achieves near 50% higher tracking accuracy and 2.5% lower total fuel consumption than modified servo controller with the same state and control weights.

引用

页码：662 / 667

页数：6

共 17 条

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