Adaptive state feedback and tracking control of systems with actuator failures

Direct adaptive-state feedback control schemes are developed for linear time-invariant plants with actuator failures with characterizations that some of the plant inputs are stuck at some fixed or varying values which cannot be influenced by control action. Conditions and controller structures for a...

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Bibliographic Details
Published in:IEEE transactions on automatic control 2001-01, Vol.46 (1), p.78-95
Main Authors: Tao, G., Joshi, S.M., Ma, X.
Format: Article
Language:English
Subjects:
Actuator failure
Adaptive control
Adaptive control systems
Asymptotic properties
Asymptotic stability
Control design
Control systems
Design engineering
Feedback control
Hydraulic actuators
Linear feedback control systems
Programmable control
Simulation
State feedback
System performance
Tracking
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Summary:Direct adaptive-state feedback control schemes are developed for linear time-invariant plants with actuator failures with characterizations that some of the plant inputs are stuck at some fixed or varying values which cannot be influenced by control action. Conditions and controller structures for achieving plant-model state matching in the presence of actuator failures are derived. Adaptive laws are designed for updating the controller parameters when both the plant parameters and actuator-failure parameters are unknown. Closed-loop stability and asymptotic-state tracking are ensured. Simulation results show that desired system performance is achieved with the developed adaptive actuator failure compensation control designs.
ISSN:0018-9286
1558-2523
DOI:10.1109/9.898697