Robust Adaptive Control for Possibly Nonminimum-Phase Systems with Persistent Actuator Failures

Author(s):  
Liyan Wen ◽  
Gang Tao ◽  
Hao Yang ◽  
Fuyang Chen ◽  
Chang Tan
2004 ◽  
Vol 127 (3) ◽  
pp. 520-526 ◽  
Author(s):  
Juntao Fei ◽  
Shuhao Chen ◽  
Gang Tao ◽  
Suresh M. Joshi

A robust adaptive control approach using output feedback for output tracking is developed for discrete-time linear time-invariant systems with uncertain failures of redundant actuators in the presence of the unmodeled dynamics and bounded output disturbance. Such actuator failures are characterized by some unknown inputs stuck at some unknown fixed values at unknown time instants. Technical issues such as plant-model output matching, adaptive controller structure, adaptive parameter update laws, stability and tracking analysis, and robustness of system performance are solved for the discrete-time adaptive actuator failure compensation problem. A case study is conducted for adaptive compensation of rudder servomechanism failures of a Boeing 747 dynamic model presented in discrete time, verifying the desired adaptive system performance in the presence of uncertain actuator failures.


Automatica ◽  
2011 ◽  
Vol 47 (2) ◽  
pp. 348-357 ◽  
Author(s):  
S.M. Hoseini ◽  
M. Farrokhi ◽  
A.J. Koshkouei

1989 ◽  
Vol 36 (3) ◽  
pp. 361-364
Author(s):  
Jong-Hwan Kim ◽  
Yeon-Chan Hong ◽  
Sung-Jun Lee ◽  
Keh-Kun Choi

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