An integrated fault tolerant control framework using adaptive critic design

An integrated fault tolerant control solution calls for a nonlinear adaptive controller with universal approximation capability and guaranteed stability. To fulfill this requirement, we propose the use of neural networks trained online under a globalized dual heuristic programming architecture super...

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Bibliographic Details
Main Authors: Yen, G.G., DeLima, P.G.
Format: Conference Proceeding
Language:English
Subjects:
Adaptive control
Control systems
Convergence
Dynamic programming
Fault tolerance
Logic programming
Neural networks
Nonlinear dynamical systems
Programmable control
Stability
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Summary:An integrated fault tolerant control solution calls for a nonlinear adaptive controller with universal approximation capability and guaranteed stability. To fulfill this requirement, we propose the use of neural networks trained online under a globalized dual heuristic programming architecture supervised by a decision logic capable of identifying controller malfunctions in early stages and providing new avenues with greater probability of convergence using information from a dynamic model bank. The classification and distinction of controller malfunctions and of the faults in the system is achieved through three independent quality indexes. Proof-of- the-concept simulations of nonlinear plants demonstrate the approach legitimacy.
ISSN:2161-4393
2161-4407
DOI:10.1109/IJCNN.2005.1556400