Results 21 to 30 of about 84,501 (299)

Measurement-based solution for low frequency oscillation analysis

open access: yesJournal of Modern Power Systems and Clean Energy, 2016
This paper presents a measurement-based solution for low frequency oscillation (LFO) analysis in both real time monitoring and off-line case study. An online LFO property discrimination method is developed first, which alternately uses empirical mode ...
Chen Shen   +4 more
doaj   +1 more source

Automatic control technology of low frequency and low voltage splitting devices using wide area measurement information

open access: yesDianxin kexue, 2022
Aiming at the problems of large noise content of wide area measurement information of power grid and difficulty in controlling oscillation damping in interconnected areas of power grid, an automatic control technology of low frequency and low voltage ...
Mingliang GAO   +3 more
doaj   +2 more sources

Low frequency oscillation characteristics of East China Power Grid after commissioning of Huai-Hu ultra-high voltage alternating current project

open access: yesJournal of Modern Power Systems and Clean Energy, 2015
The low frequency oscillation characteristics of East China Power Grid after commissioning of the first ultra-high voltage alternating current (UHVAC) project-the Huai-Hu UHVAC project are studied. Several low frequency oscillation cases occurred in East
Chao Wang   +7 more
doaj   +1 more source

Damping of low-frequency oscillation using renewable generation units

open access: yesEnergy Reports, 2023
Nowadays there is a significant increase the number of generation units based on renewable energy sources in electric power systems, the main goal of which is to ensure global access to affordable, reliable, sustainable and modern sources of energy ...
Ruslan A. Ufa   +2 more
doaj   +1 more source

A numerical study of an inline oscillating cylinder in a free stream [PDF]

open access: yes, 2011
Simulations of a cylinder undergoing externally controlled sinusoidal oscillations in the free stream direction have been performed. The frequency of oscillation was kept equal to the vortex shedding frequency from a fixed cylinder, while the amplitude ...
Leontini, Justin S.   +5 more
core   +1 more source

HIGH AND LOW FREQUENCY OSCILLATIONS IN DRUG EPIDEMICS [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2006
We extend the two-dimensional model of drug use introduced in [Behrens et al., 1999, 2000, 2002] by considering two additional states that represent in more detail newly initiated ("light") users' response to the drug experience. Those who dislike the drug quickly "quit" and briefly suppress initiation by others.
J. P. Caulkins   +3 more
openaire   +3 more sources

Small signal model and DC side low frequency oscillation analysis of AC/DC distribution network

open access: yes电力工程技术, 2022
With the rapid development and wide range application of AC/DC distribution network,its stability has also become the focus. The low-frequency oscillation at the DC side in the commissioning stage of an AC/DC distribution network project is analyzed ...
CHEN Qing   +5 more
doaj   +1 more source

A Low Frequency Oscillator [PDF]

open access: yesNature, 1925
IT may be of interest to readers of NATURE who are working with low frequency to know of a new form of oscillator.
openaire   +1 more source

Low-Frequency Oscillation Suppression Strategy for Power System Based on Supplementary Damping Control of Compressed Air Energy Storage

open access: yesZhongguo dianli, 2023
With significant increase of penetration of electronic equipment in the power system, the low-frequency oscillation problem of the power system under disturbance are becoming increasingly prominent.
Kangkang WANG   +5 more
doaj   +1 more source

Identification of low frequency oscillation modes in large transmission systems

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2017
There is a typical dynamical performance associated with every system. Oscillations are phenomena inherent to dynamical systems and the analysis of such phenomena is a fundamental issue for understanding the dynamical behavior of a particular system ...
Jorge Guillermo Calderón-Guizar   +2 more
doaj   +3 more sources

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