Results 11 to 20 of about 164,961 (268)

Self-organized synchronization and voltage stability in networks of synchronous machines [PDF]

open access: yesThe European Physical Journal Special Topics, 2014
The integration of renewable energy sources in the course of the energy transition is accompanied by grid decentralization and fluctuating power feed-in characteristics. This raises new challenges for power system stability and design. We intend to investigate power system stability from the viewpoint of self-organized synchronization aspects.
Schmietendorf, Katrin   +3 more
openaire   +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

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

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

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

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

Small-signal synchronization stability of grid-forming converter influenced by multi time-scale control interaction

open access: yesEnergy Reports, 2023
The grid-forming (GFM) converters that simulate the dynamics of synchronous generators (SGs) and actively participate in grid voltage and frequency regulation are increasingly employed as grid interfaces for renewable energy generation.
Guangyu Wang   +4 more
doaj   +1 more source

Theory of Frequency Captured of Eccentric Rotor by Vibration Environment with Same Direction

open access: yesShock and Vibration, 2021
Aiming at the frequency synchronization phenomena of oscillating or rotating bodies, this paper proposes a novel solution to address the self-synchronization problem of vibration systems.
Su Ming   +3 more
doaj   +1 more source

Transition from anticipatory to lag synchronization via complete synchronization in time-delay systems [PDF]

open access: yes, 2005
The existence of anticipatory, complete and lag synchronization in a single system having two different time-delays, that is feedback delay $\tau_1$ and coupling delay $\tau_2$, is identified.
A. S. Pikovsky   +8 more
core   +2 more sources

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

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