Considering Actuator Dynamic Aircraft Attitude Distributed Fault Tolerant Control

Based on distributed fault-tolerant control framework, actuators damage, stuck fault detection, identification unit and observer-based auxiliary system unit are designed for the attitude control system. Firstly, we give the attitude control system under actuator stuck, lose of effectiveness, and control surface damages faults. Secondly, we design a multi-observer for actuator fault detection and identification, and use a decision-making mechanism to determine current actuator failure modes. Then, an adaptive sliding mode observer is designed for implicit control surface damages and interference information. The reconfigurable controller can achieve fault tolerant by using the information of adaptive sliding mode observer. Finally, simulation results show that the proposed method is effective.