Results 11 to 20 of about 3,558,385 (316)

Increasing the synchronization stability in complex networks

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2023
We aim to increase the ability of coupled phase oscillators to maintain synchronization when the system is affected by stochastic disturbances. We model the disturbances by Gaussian noise and use the mean first hitting time when the state hits the boundary of a secure domain, that is a subset of the basin of attraction, to measure synchronization ...
Xian Wu   +4 more
openaire   +5 more sources

Large-Signal Grid-Synchronization Stability Analysis of PLL-Based VSCs Using Lyapunov's Direct Method [PDF]

open access: yesIEEE Transactions on Power Systems, 2021
Grid-synchronization stability (GSS) is an emerging stability issue of grid-tied voltage source converters (VSCs), which can be provoked by severe grid voltage sags. Although a qualitative understanding of the mechanism behind the loss of synchronization
Yu Zhang, Chen Zhang, X. Cai
semanticscholar   +1 more source

Synchronization and stability in noisy population dynamics [PDF]

open access: yesPhysical Review E, 2008
We study the stability and synchronization of predator-prey populations subjected to noise. The system is described by patches of local populations coupled by migration and predation over a neighborhood. When a single patch is considered, random perturbations tend to destabilize the populations, leading to extinction. If the number of patches is small,
Araujo, Sabrina B. L.   +1 more
openaire   +3 more sources

Composite synchronization of three inductor motors with a circular distribution by a fuzzy proportional–integral–derivative method in a vibration system [PDF]

open access: yesMechanical Sciences, 2023
In this article, the composite synchronization of three inductor motors with a circular distribution by a fuzzy PID (proportional–integral–derivative) method in a vibration system is investigated. The composite synchronization motion is comprised of self-
L. Jia, J. Yang, X. Gu, Z. Liu, X. Ma
doaj   +1 more source

Existence of anticipatory, complete and lag synchronizations in time-delay systems [PDF]

open access: yes, 2005
Existence of different kinds of synchronizations, namely anticipatory, complete and lag type synchronizations (both exact and approximate), are shown to be possible in time-delay coupled piecewise linear systems.
Lakshmanan, M., Senthilkumar, D. V.
core   +3 more sources

How modular structure determines operational resilience of power grids

open access: yesNew Journal of Physics, 2021
The synchronization stability has been analyzed as one of the important dynamical characteristics of power grids. In this study, we bring the operational perspective to the synchronization stability analysis by counting not only full but also partial ...
Heetae Kim
doaj   +1 more source

Parameter mismatches,variable delay times and synchronization in time-delayed systems [PDF]

open access: yes, 2004
We investigate synchronization between two unidirectionally linearly coupled chaotic non-identical time-delayed systems and show that parameter mismatches are of crucial importance to achieve synchronization. We establish that independent of the relation
Arecchi   +41 more
core   +1 more source

Infeasibility Analysis of Half-Wavelength Transmission Systems

open access: yesEnergies, 2018
This paper analyzes the infeasibility of half-wavelength transmission systems in the aspects of power-frequency overvoltage and synchronization stability. The circuit model of the long-distance transmission system is established at first for steady-state
Zheng Xu, Jian Yang, Nengjin Sheng
doaj   +1 more source

A study of the transient synchronization stability of PLL-GFC-based MMC-HVDC systems

open access: yesZhejiang dianli, 2023
Phase-locked loop-based grid-forming converters (PLL-GFCs) can regulate frequency and voltage. However, the transient synchronization stability after their connection to the high-voltage AC power grid is unclear.
HUA Wen   +5 more
doaj   +1 more source

Analysis of Synchronization Stability for Multi VSCs Parallel-Connected to Weak Grids by Improved Net Damping Criterion

open access: yesEnergies, 2020
Recent studies show that the loss of stability for a voltage-source converter (VSC) in weak-grid connection is largely related to its synchronization unit, i.e., the phase-locked loop (PLL).
Dong Wang   +6 more
doaj   +1 more source

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