Results 41 to 50 of about 12,108,737 (322)

Physics-informed transient stability assessment of microgrids

open access: yesiEnergy, 2023
With the integration of a voltage source converter (VSC), having variable internal voltages and source impedance, in a microgrid with high resistance to reactance ratio of short lines, angle-based transient stability techniques may find limitations ...
Priyanka Mishra, Peng Zhang
doaj   +1 more source

Learning lyapunov functions for hybrid systems [PDF]

open access: yesProceedings of the 24th International Conference on Hybrid Systems: Computation and Control, 2021
We propose a sampling-based approach to learn Lyapunov functions for a class of discrete-time autonomous hybrid systems that admit a mixed-integer representation. Such systems include autonomous piecewise affine systems, closed-loop dynamics of linear systems with model predictive controllers, piecewise affine/linear complementarity/mixed-logical ...
Shaoru Chen   +4 more
openaire   +2 more sources

Lyapunov Function and Exponential Trichotomy on Time Scales

open access: yesDiscrete Dynamics in Nature and Society, 2011
We study the relation between Lyapunov function and exponential trichotomy for the linear equation 𝑥Δ=𝐴(𝑡)𝑥 on time scales. Furthermore, as an application of these results, we give the roughness of exponential trichotomy on time scales.
Ji Zhang
doaj   +1 more source

LPV systems with unstable subsystems: A single Lyapunov function solution to stabilizing switching laws [PDF]

open access: yes, 2013
Dimirovski, Georgi M. (Dogus Author) -- Conference full title: 2013 IEEE International Conference on System Science and Engineering (ICSSE) 4-6 July 2013, Budapest, HungaryThis investigation presents a synthesis solution for stabilizing switching laws ...
Dimirovski, Georgi M.   +5 more
core   +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

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

The stability analysis of systems with nonlinear feedback expressed by a quadratic program [PDF]

open access: yes, 2006
We consider the stability of the feedback connection of a stable linear time invariant (LTI) plant with a static nonlinearity expressed by a certain class of quadratic program (QP).
Lennox, B   +5 more
core   +1 more source

A novel Lyapunov function for a non-weighted L2 gain of asynchronously switched linear systems

open access: yesat - Automatisierungstechnik, 2018
In this paper, a novel Lyapunov function is proposed to study switched linear systems with a switching delay between activation of system modes and activation of candidate controller modes.
Shuai Yuan   +3 more
semanticscholar   +1 more source

Lyapunov Function based Criteria for Ship Rolling in Random Beam Seas

open access: yesPolish Maritime Research, 2019
The aim of this study is to present a Lyapunov function which can be used to derive an intact stability criterion for a ship in random beam seas. First, the mathematical model of the rolling motion of ships in random beam seas is introduced.
Üçer Erdem
doaj   +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

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