Open AccessFinite‐time fault‐tolerant control for rigid spacecraft with actuator saturations
Author(s) -
Lu Kunfeng,
Xia Yuanqing
Publication year - 2013
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.2012.1031
Subject(s) - control theory (sociology) , terminal sliding mode , actuator , spacecraft , convergence (economics) , inertia , singularity , computer science , attitude control , fault tolerance , engineering , control engineering , sliding mode control , control (management) , mathematics , physics , nonlinear system , aerospace engineering , distributed computing , artificial intelligence , mathematical analysis , classical mechanics , quantum mechanics , economic growth , economics
This study investigates the finite‐time attitude‐tracking problem for rigid spacecraft. A novel non‐singular terminal sliding‐mode control (NTSMC) law is designed to provide finite‐time convergence and fast, high control precision even though inertia uncertainties and external disturbances affect the spacecraft systems under actuator failures and saturations. The proposed NTSMC scheme is chattering suppression and singularity‐free. Simulation results are presented to demonstrate the efficiency of the proposed method.