Constrained control of 1-D parabolic PDEs using sampled in space sensing and actuation

Wen Kang*, Emilia Fridman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We consider distributed control of a class of 1-D parabolic PDEs under distributed in-domain point actuation and measurements in the presence of control constraints. This class includes unstable diffusion-reaction equations as well as stable Burgers’ equations, where we aim to locally improve the convergence. We suggest an observer-based control law that employs the averaged values of the observer state. This allows to regionally stabilize the system. We derive linear matrix inequalities (LMIs) conditions that provide an estimate on the set of initial conditions starting from which the state trajectories of the system are exponentially converging to zero. A numerical example validates the efficiency of the method.

Original languageEnglish
Article number104698
JournalSystems and Control Letters
Volume140
DOIs
StatePublished - Jun 2020

Funding

FundersFunder number
Beijing Science Foundation for the Excellent Youth Scholars
National Natural Science Foundation of China61803026
China Postdoctoral Science Foundation2018M640065, 2019T120047
Israel Science Foundation673/19, 1128/14
Science Foundation for Excellent Youth Scholars of Sichuan University2018000020124G067
Fundamental Research Funds for the Central UniversitiesFRF-TP-18-032A1

    Keywords

    • Burgers’ equation
    • Constrained control
    • Distributed parameter systems
    • Parabolic systems
    • Point actuation

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