Spacecraft Attitude Fault-tolerant Control Based on Dynamic Control Distribution

Zhou Hong-Cheng, Wang Dao-Bo
2014 Sensors & Transducers  
For spacecraft attitude control system, we consider the aircraft's control surface deflection position saturation and rate constraints. Based on the dynamic control allocation method, we put forward redistribution method in the event of actuator stuck and damage failure. Firstly, because of the system modeling error caused by uncertainty and external disturbance, under actuator stuck and damage failure, we put forward the attitude control system mathematical model of angular rate control. We
more » ... ign actuator stuck fault diagnosis device and an adaptive sliding mode observer, respectively. The hidden failures and interference information feedback to the controller and the dynamic control allocation algorithm, in order to realize the fault tolerant control of actuator stuck and damage failure.
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