Results 21 to 30 of about 625,732 (254)

On perturbing lyapunov functions [PDF]

open access: yesMathematical Systems Theory, 1976
A new idea of perturbing Lyapunov functions is presented which permits one to discuss nonuniform properties of solutions of differential equations under weaker ...
S. Leela, V. Lakshmikantham
openaire   +1 more source

Mathematical modelling of branched hydraulic systems [PDF]

open access: yesКомпьютерные исследования и моделирование, 2009
Solving the problem of stationary stream distribution for an arbitrary volume-free hydrosystem with a free level can be reduced to determining the extremes of a multi-variable function.
N. V. Kassina, L. V. Smirnov
doaj   +1 more source

A Novel Method for Optimal Control of Piecewise Affine Systems Using Semi-Definite Programming [PDF]

open access: yesInternational Journal of Industrial Electronics, Control and Optimization, 2020
: In this paper, a novel optimal control design method by discontinuous quadratic Lyapunov function and continuous quadratic Lyapunov function for 2-dimensional piecewise affine systems via semi-definite programming and LMI constraints is proposed.In ...
Majid Akbarian   +2 more
doaj   +1 more source

Quantization of Lyapunov functions [PDF]

open access: yesUkrainian Mathematical Journal, 2011
We investigate discret conditions for stability and asymptotic stability by Lyapunov and the point of equilibrium of autonomous system of differential equations.
openaire   +3 more sources

A Generalized Nonuniform Contraction and Lyapunov Function

open access: yesAbstract and Applied Analysis, 2012
For nonautonomous linear equations x′=A(t)x, we give a complete characterization of general nonuniform contractions in terms of Lyapunov functions. We consider the general case of nonuniform contractions, which corresponds to the existence of what we ...
Fang-fang Liao   +2 more
doaj   +1 more source

Large-Signal Stability Modeling for the Grid-Connected VSC Based on the Lyapunov Method

open access: yesEnergies, 2018
In this paper, a Lyapunov-based method is used in order to determine the stability boundaries of the grid-connected voltage source converter (VSC). To do so, a state space model of the VSC is used to form the Lyapunov function of the system.
Bahram Shakerighadi   +3 more
doaj   +1 more source

Stabilizing a Rotary Inverted Pendulum Based on Logarithmic Lyapunov Function

open access: yesJournal of Control Science and Engineering, 2017
The stabilization of a Rotary Inverted Pendulum based on Lyapunov stability theorem is investigated in this paper. The key of designing control laws by Lyapunov control method is the construction of Lyapunov function.
Jie Wen, Yuanhao Shi, Xiaonong Lu
doaj   +1 more source

Parameter-Dependent Lyapunov Functions for Linear Systems With Constant Uncertainties [PDF]

open access: yes, 2009
Robust stability of linear time-invariant systems with respect to structured uncertainties is considered. The small gain condition is sufficient to prove robust stability and scalings are typically used to reduce the conservatism of this condition. It is
Balas, Gary   +3 more
core   +1 more source

Interpretability of Path-Complete Techniques and Memory-based Lyapunov functions [PDF]

open access: yesarXiv, 2022
We study path-complete Lyapunov functions, which are stability criteria for switched systems, described by a combinatorial component (namely, an automaton), and a functional component (a set of candidate Lyapunov functions, called the template). We introduce a class of criteria based on what we call memory-based Lyapunov functions, which generalize ...
arxiv  

Constructions of Strict Lyapunov Functions for Discrete Time and Hybrid Time-Varying Systems [PDF]

open access: yes, 2006
We provide explicit closed form expressions for strict Lyapunov functions for time-varying discrete time systems. Our Lyapunov functions are expressed in terms of known nonstrict Lyapunov functions for the dynamics and finite sums of persistency of ...
Albertini   +24 more
core   +6 more sources

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