Journal of Astronautics ›› 2020, Vol. 41 ›› Issue (8): 1042-1048.doi: 10.3873/j.issn.1000-1328.2020.08.007

Previous Articles     Next Articles

Spacecraft Backstepping Attitude Control Considering Multiple Forbidden Pointing Regions

MA Guang fu, LIU Ming min, WANG Liang yue, GUO Yan ning   

  1. 1. Department of Control Science and Engineering, Harbin Institute of Technology, Harbin 150001, China; 2.Shanghai Institute of Aerospace Control Technology, Shanghai 200233, China
  • Received:2019-09-01 Revised:2019-11-20 Online:2020-08-15 Published:2020-08-25

Abstract: Aiming at the spacecraft attitude maneuver control for avoiding multiple forbidden pointing regions, a spacecraft attitude control law based on the backstepping method is designed in this paper, which uses a potential function method to construct constraints. Firstly, based on the error quaternion, a general description of spacecraft’s conical forbidden pointing attitude set is built and then transformed into the convex constraints set. Secondly, based on the convex constraints set, a new convex potential function with explicit physical meaning is proposed, and the potential function only has a unique global minimum, which avoids the local minimum of the traditional potential function. Furthermore, a backstepping control law considering multiple forbidden pointing regions is designed for spacecraft attitude maneuver. Finally, the effectiveness and superiority of the proposed control algorithm is proved by a typical numerical simulation.

Key words: Spacecraft, Convex potential function, Attitude control, Backstepping method

CLC Number: