Redundant Reaction Wheel Torque Distribution Yielding Instantaneous L2 Power-Optimal Spacecraft Attitude Control

2009 ◽  
Vol 32 (4) ◽  
pp. 1269-1276 ◽  
Author(s):  
Hanspeter Schaub ◽  
Vaios J. Lappas
Keyword(s):  
Attitude Control ◽  
Spacecraft Attitude ◽  
Spacecraft Attitude Control ◽  
Reaction Wheel ◽  
Torque Distribution ◽  
Wheel Torque

Observer-based reaction wheel fault reconstruction for spacecraft attitude control systems

2019 ◽  
Vol 91 (10) ◽  
pp. 1268-1277
Author(s):  
Qingxian Jia ◽  
Huayi Li ◽  
Xueqin Chen ◽  
Yingchun Zhang
Keyword(s):  
Control Systems ◽  
Attitude Control ◽  
Spacecraft Attitude ◽  
Spacecraft Attitude Control ◽  
Attitude Dynamics ◽  
Reaction Wheel ◽  
Content Type ◽  
Fault Reconstruction ◽  
Spacecraft Attitude Dynamics ◽  
Non Linear

Purpose The purpose of this paper is to achieve fault reconstruction for reaction wheels in spacecraft attitude control systems (ACSs) subject to space disturbance torques. Design/methodology/approach Considering the influence of rotating reaction wheels on spacecraft attitude dynamics, a novel non-linear learning observer is suggested to robustly reconstruct the loss of reaction wheel effectiveness faults, and its stability is proven using Lyapunov’s indirect method. Further, an extension of the proposed approach to bias faults reconstruction for reaction wheels in spacecraft ACSs is performed. Findings The numerical example and simulation demonstrate the effectiveness of the proposed fault-reconstructing methods. Practical implications This paper includes implications for the development of reliability and survivability of on-orbit spacecrafts. Originality/value This paper proposes a novel non-linear learning observer-based reaction wheels fault reconstruction for spacecraft ACSs.

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