NDLI: Integrated fault estimation and fault tolerant attitude control for rigid spacecraft with multiple actuator faults and saturation

Content Provider	IET Digital Library
Author	Zhang, Xiaobo Zhou, Zepeng
Abstract	This study proposes an integrated fault estimation (FE) and fault-tolerant control design for a rigid spacecraft attitude system with inertia uncertainties, external disturbances, input saturation, and different type multiple actuator faults. A barrier function is first introduced to eliminate the effects of inertia uncertainties and disturbances in the design of the sliding mode FE observer. By using the non-singular fast terminal sliding mode control technology, a finite-time fault-tolerant attitude stabilisation controller and a finite-time fault-tolerant attitude tracking controller are designed to guarantee that the closed-loop attitude system has a good fault-tolerant performance under actuator faults. Furthermore, when considering actuator saturation, an auxiliary system is utilised to compensate for the saturation. The stability of the closed-loop system is analysed by Lyapunov theory. Finally, the effectiveness of the proposed control approach is demonstrated via simulation results.
Starting Page	2365
Ending Page	2375
Page Count	11
ISSN	17518644
Volume Number	13
e-ISSN	17518652
Issue Number	Issue 15, Oct (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-cta/13/15
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-cta.2019.0195
Journal	IET Control Theory & Applications
Publisher Date	2019-07-05
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Actuators Aerospace Control Attitude Control Closed Loop System Closed-loop Attitude System Considering Actuator Saturation Control Approach Control System Analysis Control System Synthesis Different Type Multiple Actuator Fault Fault Tolerance Fault Tolerant Attitude Control Fault-tolerant Control Design Finite-time Fault-tolerant Attitude Stabilisation Controller Finite-time Fault-tolerant Attitude Tracking Controller Good Fault-tolerant Performance Inertia Uncertainties Input Saturation Integrated Fault Estimation Lyapunov Method Multivariable Control System Nonlinear Control System Nonsingular Fast Terminal Sliding Mode Control Technology Observers Rigid Spacecraft Attitude System Sliding Mode FE Observer Space Vehicle Spatial Variables Control Stability Stability in Control Theory Synthesis Method Variable Structure System
Content Type	Text
Resource Type	Article
Subject	Control and Optimization Control and Systems Engineering Human-Computer Interaction Electrical and Electronic Engineering Computer Science Applications

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