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Minimal Time Control of the Two Tanks Gradostat Model Under a Cascade Input Constraint

Abstract : We study the minimum time control problem of a series of two interconnected chemostats under the input constraint u2<=u1, where ui are the respective dilution rates in the tanks. This constraint brings controllability issues in the study of the optimal strategies. We encounter this difficulty by splitting the state domain into two sub-domains, one with no lack of controllability of the target, and its complementary is such that any optimal control fulfills u1=u2. We explicit the complete optimal synthesis that depends on the position of the target with respect to semi-permeable curve that passes through a steady-state singular point.
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Submitted on : Monday, June 2, 2014 - 9:23:12 AM
Last modification on : Wednesday, September 28, 2022 - 3:14:30 PM
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Térence Bayen, Alain Rapaport, Matthieu Sebbah. Minimal Time Control of the Two Tanks Gradostat Model Under a Cascade Input Constraint. SIAM Journal on Control and Optimization, Society for Industrial and Applied Mathematics, 2014, 52 (4), pp.2568-2594. ⟨10.1137/130950379⟩. ⟨hal-00798651v3⟩



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