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|Title:||Fast fault estimation and accommodation for dynamical systems|
|Citation:||IET Control Theory and Applications, 2009; 3(2):189-199|
|Publisher:||The Institution of Engineering and Technology|
|K. Zhang, B. Jiang, P. Shi|
|Abstract:||The problem of fast active fault-tolerant control is studied using adaptive fault diagnosis observer (AFDO). Existence conditions for linear time-invariant system are first introduced to verify whether or not the adaptive observer for fault diagnosis exists. Then a novel fast adaptive fault estimation (FAFE) algorithm is proposed to enhance the performance of fault estimation. Using the on-line obtained fault information, the observer-based fault tolerant controller based on the separation property is designed to compensate for the loss of actuator effectiveness by stabilising the closed-loop system. Furthermore, an extension to a class of nonlinear systems is extensively investigated. Finally, simulation results are presented to illustrate the efficiency of the proposed techniques.|
|Rights:||© The Institution of Engineering and Technology 2009|
|Appears in Collections:||Electrical and Electronic Engineering publications|
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