Results 11 to 20 of about 62,811 (313)

Characteristics of edge temperature ring oscillation during the stationary improved confinement mode in EAST

open access: yesNuclear Fusion, 2023
The I-mode is a natural edge localized mode (ELM)-free regime with H-mode-like improved energy confinement and L-mode-like particle confinement, making it an attractive scenario for future tokamak-based fusion reactors.
A.D. Liu   +12 more
doaj   +2 more sources

Oscillation mode analysis for multi-mode coupling power systems with high renewables penetration using improved blind source separation [PDF]

open access: yesFrontiers in Energy Research, 2023
The extensive application of power electronic equipment and the increasing penetration of renewable energy generation gradually strengthen the nonlinear and modal-coupling characteristics of electromechanical oscillation of modern power systems.
Zhiwei Wang   +4 more
doaj   +2 more sources

A Multi-Mode Recognition Method for Broadband Oscillation Based on CS-OMP and Adaptive VMD

open access: yesEnergies
Due to the application of power electronics and wind power generation equipment in power systems, broadband oscillation events constantly appear, which makes broadband oscillation difficult to detect due to the limitations of communication bandwidth and ...
Jinggeng Gao   +5 more
doaj   +2 more sources

Negative modes of oscillating instantons [PDF]

open access: yesPhysical Review D, 2012
21 pages, 7 ...
Battarra Lorenzo   +2 more
openaire   +3 more sources

The Role of Chain Processes in Cool Flames and Soot Formation

open access: yesEurasian Chemico-Technological Journal, 2021
 The 125th anniversary of Academician N.N. Semenov, the great natural scientist of the 20th century, is a significant event for the world scientific community.
Z.A. Mansurov
doaj   +1 more source

Phase Shaping Method for Negative Input Admittance of Buck Converter Based on Sliding Mode Disturbance Observer

open access: yesIEEE Access, 2021
The power electronic converter that supplies power to the unmanned ship's servers can cause self-excited oscillation of the LC input filter under heavy load.
Xuzhou Zhuang   +7 more
doaj   +1 more source

Pan-Atlantic decadal climate oscillation linked to ocean circulation

open access: yesCommunications Earth & Environment, 2023
Atlantic climate displays an oscillatory mode at a period of 10–15 years described as pan-Atlantic decadal oscillation. Prevailing theories on the mode are based on thermodynamic air-sea interactions and the role of ocean circulation remains uncertain ...
Hyacinth C. Nnamchi   +6 more
doaj   +1 more source

Performance analysis of modeling scale on multiband oscillations in grid-connected wind farm

open access: yesFrontiers in Energy Research, 2023
Grid-connected permanent magnet synchronous generator (PMSG) wind farms may be susceptible to oscillation when connected to weak grids. This paper explores the root causes of the oscillations from two perspectives: the model and the oscillation frequency
Lin Zhu   +5 more
doaj   +1 more source

Correlation Analysis between Wind Speed/Voltage Clusters and Oscillation Modes of Doubly-Fed Induction Generators

open access: yesEnergies, 2018
Potential machine-grid interactions caused by large-scale wind farms have drawn much attention in recent years. Previous work has been done by analyzing the small–signal modeling of doubly-fed induction generators (DFIGs) to obtain the oscillation ...
Jierong Miao   +3 more
doaj   +1 more source

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