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In this paper, the problem of actuators faults detection and estimation for linear parameters varying systems described by the polytopic representation is considered by the design of a Polytopic Proportional Integral Observer (PPIO). The PPIO gains are obtained by solving a set of linear matrices inequalities. The proposed approach is applied, with success, to a Van de Vusse reactor.
This paper examines the problem of the state and the unknown inputs estimation for nonlinear descriptor system via Unknown Input and Proportional Integral Observer. The used approach is based on the multi-model representation of the nonlinear descriptor process. The design methods of both proportional integral observers and unknown inputs observers for multi-model descriptor systems are described...
A method to synthesize an observer for continuous-time Descriptor Linear Parameter Variant (D-LPV) systems is presented in this paper. The main contribution consists of an observer synthesis developed for descriptor linear time invariant extended to LPV systems. The conditions for the existence of LPV observer are given. Such conditions guarantee the observer convergence and they are proved through...
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