Results 21 to 30 of about 33,209,479 (267)

Solution Bounds and Numerical Methods of the Unified Algebraic Lyapunov Equation

open access: yesMathematics, 2022
In this paper, applying some properties of matrix inequality and Schur complement, we give new upper and lower bounds of the solution for the unified algebraic Lyapunov equation that generalize the forms of discrete and continuous Lyapunov matrix ...
Juan Zhang, Shifeng Li, Xiangyang Gan
doaj   +1 more source

The Lyapunov spectrum as the Newton method [PDF]

open access: yesPhysica A: Statistical Mechanics and its Applications, 2012
For a class of dynamical systems, the cookie-cutter maps, we prove that the Lyapunov spectrum coincides with the map given by the Newton-Raphson method applied to the derivative of the pressure function.
openaire   +5 more sources

General active stabiliser for coordinated control of low voltage multi-terminal AC/DC hybrid system

open access: yesThe Journal of Engineering, 2018
It is known that if AC/DC converter power exceeds limit it may lead to instability of DC network, especially DC voltage, and further affects the whole system.
Wei Deng   +4 more
doaj   +1 more source

Numerical Methods That Preserve a Lyapunov Function for Ordinary Differential Equations

open access: yesMathematics, 2022
The paper studies numerical methods that preserve a Lyapunov function of a dynamical system, i.e., numerical approximations whose energy decreases, just like in the original differential equation.
Yadira Hernández-Solano, Miguel Atencia
doaj   +1 more source

Event-triggered detection of cyberattacks on load frequency control

open access: yesIET Cyber-Physical Systems, 2020
Modern power systems are extensively interlaced with data communication at various levels leading to increased vulnerability to cyberattacks at individual components as well as integrated controls.
Aradhna Patel   +2 more
doaj   +1 more source

Parallel distributed compensation scheme for chaotic masking system via Rivest cipher 4 stream cipher

open access: yesIET Control Theory & Applications, 2023
This study presents a design methodology for Takagi‐Sugeno (T‐S) fuzzy models‐based secure communications in multiple time‐delay chaotic (MTDC) systems with Rivest cipher 4 (RC4) algorithm.
Feng‐Hsiag Hsiao
doaj   +1 more source

A discrete epidemic model for bovine Babesiosis disease and tick populations

open access: yesOpen Physics, 2017
In this paper, we provide and study a discrete model for the transmission of Babesiosis disease in bovine and tick populations. This model supposes a discretization of the continuous-time model developed by us previously.
Aranda Diego F.   +2 more
doaj   +1 more source

Adaptive Sliding Mode Control for a Double Fed Induction Generator Used in an Oscillating Water Column System

open access: yesEnergies, 2018
Wave power conversion systems are nonlinear dynamical systems that must endure strong uncertainties. Efficiency is a key issue for these systems, and the application of robust control algorithms can improve it considerably.
Oscar Barambones   +2 more
doaj   +1 more source

Kernel Machine to Estimate a Lyapunov Function and Region of Attraction (ROA) for Nonlinear Systems

open access: yesIEEE Access, 2023
The Lyapunov theory establishes the fundamental details to determine the stability and the Lyapunov function associated with an equilibrium point of a nonlinear system.
Afroza Shirin   +2 more
doaj   +1 more source

Biologically inspired adaptive intelligent secondary control for MGs under cyber imperfections

open access: yesIET Cyber-Physical Systems, 2019
In this study, the authors investigate the secondary control of microgrids (MGs) in the presence of cyber imperfections such as delay and/or noise, and system disturbances.
Mohammad Jafari   +6 more
doaj   +1 more source

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