Abstract

In the pseudo-inverse method (PIM) the Frobenius norm based distance between the closed loop model of the faulty system and some reference model is minimized. Stability issues are considered in the Modified PIM (MPIM). This paper proposes to use a set of admissible models, rather than searching for an optimal one which does not provide any stability / performance guarantee. The approach allows to characterize the set of recoverable faults, and to associate some robustness property with the fault adaptation scheme.

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