Results 21 to 30 of about 10,690,097 (295)
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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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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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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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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A pilot study of the impact of high-frequency chest wall oscillation in chronic obstructive pulmonary disease patients with mucus hypersecretion [PDF]
, 2011 Indranil Chakravorty1, Kamaljit Chahal2, Gillian Austin21St George's Hospital, London, 2East and North Hertfordshire NHS Trust, Lister Hospital and Primary Care Trust, Stevenage, Hertfordshire, UKIntroduction: Chronic obstructive pulmonary ...
Chahal, K +8 more
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A numerical study of an inline oscillating cylinder in a free stream [PDF]
, 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
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Small signal model and DC side low frequency oscillation analysis of AC/DC distribution network
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
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Zhongguo 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
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Identification of low frequency oscillation modes in large transmission systems
Revista Facultad de Ingeniería Universidad de Antioquia, 2017 Existe un comportamiento dinámico típico asociado a todo sistema. Las oscilaciones son fenómenos inherentes a los sistemas dinámicos, por lo que el análisis de estos resulta fundamental para entender el comportamiento dinámico de un sistema en particular.
Jorge Guillermo Calderón-Guizar +2 more
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