Open AccessCoordination control design for formation reconfiguration of multiple spacecraft
Author(s) -
Zhou Ning,
Xia Yuanqing
Publication year - 2015
Publication title -
iet control theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.059
H-Index - 108
eISSN - 1751-8652
pISSN - 1751-8644
DOI - 10.1049/iet-cta.2015.0144
Subject(s) - control reconfiguration , collision avoidance , spacecraft , control theory (sociology) , obstacle avoidance , discontinuity (linguistics) , computer science , obstacle , reachability , collision , task (project management) , convergence (economics) , control engineering , control (management) , engineering , aerospace engineering , robot , mathematics , mobile robot , algorithm , artificial intelligence , embedded system , mathematical analysis , computer security , systems engineering , economic growth , law , political science , economics
This study investigates the high precision control design of formation reconfiguration for a group of spacecraft with obstacle/collision avoidance and unknown disturbances. First, by utilising the null‐space‐based method, a set of pre‐designed velocities are calculated for each spacecraft to perform the tasks with the obstacle/collision avoidance task has a higher priority. Second, a task‐based adaptive non‐singular fast terminal sliding mode coordination control algorithm (TANCCA) is proposed, which can guarantee all the spacecraft to implement the formation reconfiguration while avoiding obstacles/collisions under an unknown disturbed environment. To solve the chattering problem caused by the discontinuity of TANCCA, a modified TANCCA (MTANCCA) is then developed, which is continuous and chattering‐free. Finally, the authors use the solution to the formation reconfiguration control problem for six spacecrafts in a circular Low Earth Orbit at 600 km altitude. The results of the simulation show that the MTANCCA is successful in achieving the obstacle/collision avoidance, disturbance rejection, fast convergence, and high control precision without any collisions or rules broken.