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JOURNALS // Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy // Archive

Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2022 Volume 9, Issue 1, Pages 3–10 (Mi vspua36)

MATHEMATICS

Stabilization of some classes of uncertain control systems with evaluation of admissible disturation for object matrix

I. E. Zuber

Institute of Problems of Mechanical Engineering of the Russian Academy of Sciences, 61, Bolshoy pr. V.O., St Petersburg, 199178, Russian Federation

Abstract: Consider the system $\dot{x} = M(·)x + e_{n}u$, $u = s^{T}x$, where $M(·) \in R^{n \times n}$, $s \in R^n$, the pair $M(·)$, $e_n$ is uniformly controlable. The elements of $M(·)$ are nonlook-ahead functionals of arbitrary nature. The object matrix is considering in form $M(·) = A(·) + D(·)$, where $A(·)$ has a form of globalized Frobenious matrix, $D(·)$ is a matrix of disturbation. Consider the square Lyapunov function $V(x)$ with constant matrix of special form and number $\alpha > 0$ as estimate for $\dot{V}$ for case $D(·) = 0$. The definition of such vector $s$ and such estimate of norm matrix $D(·)$ that system is globally and exponentially stable are performed for every $\alpha > 0$.

Keywords: uncertain systems, global and exponential stability, the square Lyapunov function.

UDC: 517.938

MSC: 39À30

Received: 23.03.2021
Revised: 31.07.2021
Accepted: 02.09.2021

DOI: 10.21638/spbu01.2022.101


 English version:
Vestnik St. Petersburg University, Mathematics, 2022, 9:1, 3–10


© Steklov Math. Inst. of RAS, 2024