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JOURNALS // Avtomatika i Telemekhanika // Archive

Avtomat. i Telemekh., 2021 Issue 3, Pages 77–97 (Mi at15546)

This article is cited in 1 paper

Nonlinear Systems

Spatially discrete control of scalar linear distributed plants of parabolic and hyperbolic types

I. B. Furtata, P. A. Gushchinb

a Institute for Problems in Mechanical Engineering, Russian Academy of Sciences, St. Petersburg, 199178 Russia
b Gubkin University, Moscow, 119991 Russia

Abstract: A spatially discrete control law is proposed for a class of systems described by scalar linear differential equations of parabolic and hyperbolic types with unknown parameters and disturbances. A finite set of discrete measurements (with respect to the spatial variable) of the plant state is available. The control law depends on a function that depends on the spatial variable and on a finite set of measurements of the plant state. Examples of this function, which allows realizing the control signal only at certain intervals in the spatial variable and providing lower control costs than some other analogs, are given. The exponential stability of the closed-loop system and robustness with respect to interval uncertain parameters of the plant and exogenous bounded disturbances are proved. Numerical modeling examples confirm the results of calculations and show the efficiency of the algorithm compared with some existing analogs.

Keywords: static control law, linear partial differential equation, Lyapunov functional, linear matrix inequality, exponential stability.

Presented by the member of Editorial Board: A. G. Kushner

Received: 18.08.2020
Revised: 20.10.2020
Accepted: 28.10.2020

DOI: 10.31857/S0005231021030041


 English version:
Automation and Remote Control, 2021, 82:3, 433–448

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© Steklov Math. Inst. of RAS, 2024