TY - JOUR
T1 - Distributed fault-tolerant control design for spacecraft finite-time attitude synchronization
AU - Zhou, Ning
AU - Xia, Yuanqing
N1 - Publisher Copyright:
Copyright © 2015 John Wiley & Sons, Ltd.
PY - 2016/9/25
Y1 - 2016/9/25
N2 - This paper develops two distributed finite-time fault-tolerant control algorithms for attitude synchronization of multiple spacecraft with a dynamic virtual leader in the presence of modeling uncertainties, external disturbances, and actuator faults. The leader gives commands only to a subset of the followers, and the communication flow between followers is directed. By employing a novel distributed nonsingular fast terminal sliding mode and adaptive mechanism, a distributed finite-time fault-tolerant control law is proposed to guarantee all the follower spacecraft that finite-time track a dynamic virtual leader. Then utilizing three distributed finite-time sliding mode estimators, an estimator-based distributed finite-time fault-tolerant control law is proposed using only the followers' estimates of the virtual leader. Both of them do not require online identification of the actuator faults and provide robustness, finite-time convergence, fault-tolerant, disturbance rejection, and high control precision. Finally, numerical simulations are presented to evaluate the theoretical results.
AB - This paper develops two distributed finite-time fault-tolerant control algorithms for attitude synchronization of multiple spacecraft with a dynamic virtual leader in the presence of modeling uncertainties, external disturbances, and actuator faults. The leader gives commands only to a subset of the followers, and the communication flow between followers is directed. By employing a novel distributed nonsingular fast terminal sliding mode and adaptive mechanism, a distributed finite-time fault-tolerant control law is proposed to guarantee all the follower spacecraft that finite-time track a dynamic virtual leader. Then utilizing three distributed finite-time sliding mode estimators, an estimator-based distributed finite-time fault-tolerant control law is proposed using only the followers' estimates of the virtual leader. Both of them do not require online identification of the actuator faults and provide robustness, finite-time convergence, fault-tolerant, disturbance rejection, and high control precision. Finally, numerical simulations are presented to evaluate the theoretical results.
KW - attitude synchronization
KW - cooperative control
KW - fault-tolerant control
KW - finite-time control
KW - modeling uncertainties
KW - unknown disturbances
UR - http://www.scopus.com/inward/record.url?scp=84979984836&partnerID=8YFLogxK
U2 - 10.1002/rnc.3481
DO - 10.1002/rnc.3481
M3 - Article
AN - SCOPUS:84979984836
SN - 1049-8923
VL - 26
SP - 2994
EP - 3017
JO - International Journal of Robust and Nonlinear Control
JF - International Journal of Robust and Nonlinear Control
IS - 14
ER -