Fault-tolerant sliding mode satellite attitude stabilization using magneto-Coulombic torquers

2022 ◽  
pp. 107316
Author(s):  
Himanshu Prabhat ◽  
Bijoy K. Mukherjee ◽  
Dipak Kumar Giri ◽  
Manoranjan Sinha
Keyword(s):  
Fault Tolerant ◽  
Sliding Mode ◽  
Attitude Stabilization ◽  
Satellite Attitude

scholarly journals Velocity-Free State Feedback Fault-Tolerant Control for Satellite with Actuator and Sensor Faults

Symmetry ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 157
Author(s):  
Mingjun Liu ◽  
Aihua Zhang ◽  
Bing Xiao
Keyword(s):  
State Feedback ◽  
Fault Tolerant ◽  
Sliding Mode ◽  
Fault Tolerant Control ◽  
Free State ◽  
Sensor Faults ◽  
Control Approach ◽  
Satellite Attitude ◽  
Unknown System ◽  
System States

A velocity-free state feedback fault-tolerant control approach is proposed for the rigid satellite attitude stabilization problem subject to velocity-free measurements and actuator and sensor faults. First, multiplicative faults and additive faults are considered in the actuator and the sensor. The faults and system states are extended into a new augmented vector. Then, an improved sliding mode observer based on the augmented vector is presented to estimate unknown system states and actuator and sensor faults simultaneously. Next, a velocity-free state feedback attitude controller is designed based on the information from the observer. The controller compensates for the effects of actuator and sensor faults and asymptotically stabilizes the attitude. Finally, simulation results demonstrate the effectiveness of the proposed scheme.

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