Interval observers for continuous-time LPV systems with L 1 / L 2 performance

Interval observers for continuous-time LPV systems with L 1 / L 2 performance

An approach to interval observer design for Linear Parameter-Varying (LPV) systems is proposed. It is assumed that the vector of scheduling parameters in LPV models is not available for measurement. Two different interval observers are constructed for nonnegative systems and for a generic case. Stab...

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Veröffentlicht in:Automatica (Oxford) 2015-08, Vol.58, p.82-89
Hauptverfasser: Chebotarev, Stanislav, Efimov, Denis, Raïssi, Tarek, Zolghadri, Ali
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creator Chebotarev, Stanislav
Efimov, Denis
Raïssi, Tarek
Zolghadri, Ali
description An approach to interval observer design for Linear Parameter-Varying (LPV) systems is proposed. It is assumed that the vector of scheduling parameters in LPV models is not available for measurement. Two different interval observers are constructed for nonnegative systems and for a generic case. Stability conditions are expressed in terms of matrix inequalities, which can be solved with respect to the observer gains using standard numerical solvers. Applying $L_1$/$L_2$ framework the robustness and estimation accuracy with respect to model uncertainty are analyzed. The efficiency of interval estimation for LPV models is demonstrated through numerical experiments for a microfluidic system and an academic example.
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title Interval observers for continuous-time LPV systems with L 1 / L 2 performance
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