Abstract
This paper deals with the design of an estimator-based supervisory Fault Tolerant Control (FTC) scheme for Linear Time Invariant (LTI) systems. A formal stability proof based on dwell-time conditions is presented when the state of the detection filter does not correspond to the plant state, as in classical (Luenberger) observer-based approaches. In this context, fault isolability could be improved leading to an enhanced distinguishability between all possible operating modes. Note that this paper should be understood like a preliminary work to provide a unified context for a norm-based performance optimization problem. The efficiency of the proposed technique is illustrated on a numerical example.
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