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Article Dans Une Revue Asian Journal of Control Année : 2020

Robust and guaranteed output-feedback force control of piezoelectric actuator under temperature variation and input constraints

Résumé

This paper addresses the control of manipulation force in a piezoelectric tubeactuator (piezotube) subjected to temperature variation and input constrains.To handle this problem a robust output-feedback design is proposed using aninterval state-space model, which permits consideration of the parameter uncertainties caused by temperature variation. The design method is robust in the sense that the eigenvalues of the interval system are designed to be clustered inside desired regions. For that, an algorithm based on Set Inversion Via IntervalAnalysis (SIVIA) combined with interval eigenvalues computation is proposed. This recursive SIVIA-based algorithm allows to approximate with subpaving the set solutions of the feedback gain[K]that satisfy the inclusion of the eigenvalues of the closed-loop system in the desired region, while at the same time ensuring the control inputs amplitude is bounded by specified saturation. The effectiveness of the control strategy is illustrated by experiments on a real piezotube of which the environmental temperature is varied.
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Dates et versions

hal-03156313 , version 1 (02-03-2021)

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Mounir Hammouche, Philippe Lutz, Micky Rakotondrabe. Robust and guaranteed output-feedback force control of piezoelectric actuator under temperature variation and input constraints. Asian Journal of Control, 2020, 22 (6), pp.2242-2253. ⟨10.1002/asjc.2258⟩. ⟨hal-03156313⟩
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