scholarly journals Nussbaum Gain Adaptive Fault Tolerant Control for Hypersonic Vehicles with Uncertain Parameters and Actuator Faults * *This work was supported by the National Natural Science Foundation of China (61374116,61533009), the Six Talent Peaks Project in Jiangsu Province (HKHT-010) and Changzhou Application Basic Research Program (CJ20160050).

2017 ◽  
Vol 50 (1) ◽  
pp. 5256-5262 ◽  
Author(s):  
Binyan Xu ◽  
Ruiyun Qi ◽  
Bin Jiang ◽  
Xuelian Yao
Keyword(s):  
Research Program ◽  
Natural Science ◽  
Fault Tolerant ◽  
Basic Research ◽  
Fault Tolerant Control ◽  
Jiangsu Province ◽  
Hypersonic Vehicles ◽  
Uncertain Parameters ◽  
Actuator Faults

Fault-tolerant control of hypersonic vehicles based on fast fault observer under actuator gain loss fault or stuck fault

2020 ◽  
Vol 124 (1278) ◽  
pp. 1190-1207
Author(s):  
P. Zhu ◽  
J. Jiang ◽  
C. Yu
Keyword(s):  
Simulation Experiment ◽  
Fault Tolerant ◽  
Sliding Mode ◽  
Input Saturation ◽  
Fault Tolerant Control ◽  
Fault Estimation ◽  
Hypersonic Vehicles ◽  
Control Input ◽  
Actuator Faults ◽  
Gain Loss

ABSTRACTThis paper proposes a fault-tolerant control (FTC) method based on fast fault observer (FFO) to solve the problem of actuator gain loss fault and stuck fault for hypersonic vehicles. Firstly, an input-output feedback linearisation model is presented that considers parametric uncertainties, control input saturation, disturbances and actuator faults. Secondly, the above factors are defined as an integrated fault item, and an improved fast fault observer is designed to estimate the integrated fault in real time. Finally, the fault-tolerant controller is constructed based on the sliding mode and fault estimation. In case of unknown faults, the effects of gain loss fault or stuck fault happen on elevators and the engine can be quickly processed, Also, the asymptotically stable tracking of the flight output reference command is completed to achieve fault-tolerant control. The final simulation experiment verifies the effectiveness of the proposed method.

Active fault tolerant control of turbofan engines with actuator faults under disturbances

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Yan-Hua Ma ◽  
Xian Du ◽  
Lin-Feng Gou ◽  
Si-Xin Wen
Keyword(s):  
Active Fault ◽  
Fault Tolerant ◽  
Fault Tolerant Control ◽  
Feedback Controller ◽  
Actuator Faults ◽  
Error Feedback ◽  
Turbofan Engine ◽  
Turbofan Engines ◽  
Interval Observer ◽  
State Error

AbstractIn this paper, an active fault-tolerant control (FTC) scheme for turbofan engines subject to simultaneous multiplicative and additive actuator faults under disturbances is proposed. First, a state error feedback controller is designed based on interval observer as the nominal controller in order to achieve the model reference rotary speed tracking control for the fault-free turbofan engine under disturbances. Subsequently, a virtual actuator based reconfiguration block is developed aiming at preserving the consistent performance in spite of the occurrence of the simultaneous multiplicative and additive actuator faults. Moreover, to improve the performance of the FTC system, the interval observer is slightly modified without reconstruction of the state error feedback controller. And a theoretical sufficiency criterion is provided to ensure the stability of the proposed active FTC system. Simulation results on a turbofan engine indicate that the proposed active FCT scheme is effective despite of the existence of actuator faults and disturbances.

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