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This paper deals with the problem of fault (or disturbance) decoupling in nonlinear systems. A new method is proposed to increase dimension of state subspace which is insensitive to fault (or disturbance). This method is based on a nonlinear filter defined by means of the generalized output injection. An example is presented which illustrates results.
Today, to deal with the rapidly evolving needs of the market and its increased competitiveness, more and more companies operating in the field of construction use the risk management approach to improve their project's control.
This paper presents an adaptive Generalized Likelihood Ratio (GLR) test for multiple Faults Detection and Isolation (FDI) in stochastic linear dynamic systems. Based on the work of Willsky and Jones (1976), we propose a modified generalized likelihood ratio test, allowing detection, isolation and estimation of multiple sequential faults. Our contribution aims to maximise the good decision rate of...
To solve the problem of diagnosis of multiple sequential faults, [16] have developed the Generalized Likelihood Ratio (GLR) test. After each detection and isolation of one jump, the treatment of another possible jump is obtained by a direct state estimate and covariance incrementation of the Kalman filter originally designed on the jump-free system. With this updating strategy, the rate of good decisions...
In this paper a method for fault-tolerant control in dynamic systems is presented. The proposed approach is composed of two stages. The first stage is the detection and isolation of the failed component using a directional filter designed under a particular eigenstructure assignment. The second stage is represented by the reconfiguration mechanism which makes possible the compensation of the fault...
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