Results 11 to 20 of about 75,653 (214)

Control Strategies for Suppressing Frequency Oscillation of Doubly-Fed Wind Farms Connected to Grid

open access: yesShanghai Jiaotong Daxue xuebao, 2022
Aimed at the problem of low-frequency oscillations caused by cross-region power transmissioin of large-scale wind farms, a single neuron adaptive proportion integration differentiation (PID) additional damping control strategy for low-frequency ...
LIU Xinyu, LU Xinyan, ZENG Long, HAO Zhenghang, ZHAO Qifang, LI Xianwei, HAO Tongmeng
doaj   +1 more source

Sub-Seasonal Prediction of Sea-Gale Processes in the Yangtze River Estuary of China

open access: yesAtmosphere, 2023
The sea-gale process (SGP) is a significant and disastrous weather event for the marine industry. However, the sub-seasonal predictability of SGP remains unclear.
Xiao Xie, Ping Liang, Qiwen Qian
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

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

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 Low-Frequency Oscillator [PDF]

open access: yesReview of Scientific Instruments, 1953
A low-frequency simple-harmonic oscillator, employing a relatively new method of approach, is described. An electronic analog computer of the differential analyzer type is used to solve the differential equation of a mass-spring system. Three dc operational amplifiers perform the computation and a sinusoidal output is obtained as the solution of the ...
Howe, Robert Milton   +1 more
openaire   +2 more sources

A synthetic low-frequency mammalian oscillator [PDF]

open access: yesNucleic Acids Research, 2010
Circadian clocks have long been known to be essential for the maintenance of physiological and behavioral processes in a variety of organisms ranging from plants to humans. Dysfunctions that subvert gene expression of oscillatory circadian-clock components may result in severe pathologies, including tumors and metabolic disorders.
Tigges Marcel   +4 more
openaire   +3 more sources

Cause Analysis and Suppression Strategy of Power System Low-Frequency Oscillation Based on Recording Curves

open access: yesZhongguo dianli, 2021
How to swiftly determine the cause of the power system low-frequency oscillation and suppress it effectively is always a subject of great concern. A novel integrated solution is proposed to analyze and suppress the power system low-frequency oscillation ...
Risheng FANG   +7 more
doaj   +1 more source

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

Householder-based Prony Method for Identification of Low-frequency Oscillation in Power System [PDF]

open access: yesE3S Web of Conferences, 2019
In this paper, the Prony analysis tool with the software used in the actual operation has a large error. The improved Prony method is used to identify the low-frequency oscillation mode of the power system. The traditional Prony algorithm has the problem
Zhang Simin   +3 more
doaj   +1 more source

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