Results 21 to 30 of about 119,167 (300)
Extended-Range Forecast of Regional Persistent Extreme Cold Events Based on Deep Learning
Atmosphere, 2023 Regional persistent extreme cold events are meteorological disasters that cause serious harm to people’s lives and production; however, they are very difficult to predict. Low-temperature weather systems and their effects have a significant low-frequency
Weichen Wu +4 more
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Frontiers in Earth Science, 2023 Previous studies have pointed out that persistent abnormal precipitation is closely related to atmospheric low-frequency oscillation, and Southwest China can be affected by low-frequency oscillation in different latitudes and altitudes.
Tian-Gui Xiao +6 more
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Low Frequency Oscillation Mode Estimation Using Synchrophasor Data
IEEE Access, 2020 Deep learning techniques have been widely used for power system operations as a very hot topic in recent years. This paper proposed a spatiotemporal deep learning-based low frequency oscillation mode estimation method using synchrophasor data.
Jinhuan Zhang, Haixia An, Na Wu
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Applied Sciences, 2023 Aiming at the low-frequency oscillation problem of high-proportion wind power and energy storage connected to the power system, this paper establishes a system small signal model according to the matrix similarity theory, which lays a foundation for the ...
Yu Song, Shouyuan Wu
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Control Strategies for Suppressing Frequency Oscillation of Doubly-Fed Wind Farms Connected to Grid
Shanghai 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
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Sub-Seasonal Prediction of Sea-Gale Processes in the Yangtze River Estuary of China
Atmosphere, 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
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A Low-Frequency Oscillator [PDF]
Review 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
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A synthetic low-frequency mammalian oscillator [PDF]
Nucleic 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
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Measurement-based solution for low frequency oscillation analysis
Journal 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
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Dianxin 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
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