Saturation avoidance method for control moment gyros during spacecraft attitude maneuvers

Author

Zhao Qian ; Huang Haibing ; Tang Guojin

Author_Institution

Coll. of Aerosp. Sci. & Technol., Nat. Univ. of Defense Technol., Changsha, China

fYear

2015

fDate

23-25 May 2015

Firstpage

1796

Lastpage

1801

Abstract

This article investigates the spacecraft large-angle attitude maneuver control considering control moment gyros (CMGs) saturation. In order to design the control laws to avoid CMGs saturation during attitude maneuvers, novel potential functions for spacecraft are proposed based on the artificial potential function (APF), in which the distance between the present attitude and the aiming attitude is used as an attractive potential function and the saturation state of CMGs is employed as a repulsive potential function. And then, the control laws for stable and unstable terminal attitudes are proposed respectively using Lyapunov method. Numerical examples show that the proposed control laws can avoid CMGs saturation during the large-angle attitude maneuvers.

Keywords

Lyapunov methods; attitude control; collision avoidance; gyroscopes; APF; CMGs saturation state; Lyapunov method; artificial potential function; attractive potential function; control law design; control moment gyros saturation; repulsive potential function; saturation avoidance method; spacecraft large-angle attitude maneuver control; unstable terminal attitudes; Attitude control; Lyapunov methods; Materials requirements planning; Orbits; Space vehicles; Torque; Artificial Potential Function; Attitude Maneuver; Control Moment Gyros; Saturation Avoidance;

fLanguage

English

Publisher

ieee

Conference_Titel

Control and Decision Conference (CCDC), 2015 27th Chinese

Conference_Location

Qingdao

Print_ISBN

978-1-4799-7016-2

Type

conf

DOI

10.1109/CCDC.2015.7162210

Filename

7162210