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Unknown input observers for LPV systems with parameter varying output equation

Abstract : This paper addresses a discussion about Unknown Input Observers (UIO) for Linear Parameter Varying (LPV) systems designed classically by using the polytopic representation. It is illustrated that even if the rank conditions ensuring the existence of an UIO are satisfied, the design may fail, due to the polytopic representation of the LPV system. In this paper a new design approach is proposed via two different UIOs for a class of LPV systems with parameter dependent output equation. It is based on parameter algebraic matrix equations and LMI conditions. Examples are provided in order to illustrate the performances of the proposed approach.
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Contributor : Didier Maquin Connect in order to contact the contributor
Submitted on : Thursday, November 25, 2021 - 10:08:55 PM
Last modification on : Friday, November 26, 2021 - 3:28:34 PM
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Dalil Ichalal, Benoît Marx, José Ragot, Didier Maquin. Unknown input observers for LPV systems with parameter varying output equation. 9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes, SAFEPROCESS'2015, Sep 2015, Paris, France. pp.1030-1035, ⟨10.1016/j.ifacol.2015.09.662⟩. ⟨hal-01132875⟩



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