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Adaptive Band-Pass Filter and VMD-Esprit Based Multi-Mode Monitoring Method for Broadband Electromagnetic Oscillation in “Double High” Power Systems [PDF]

open access: goldEnergies, 2023
With the development of new power systems with high proportions of renewable energy and high proportions of power electronics equipment, the influence of broadband electromagnetic oscillations in power systems is becoming more and more significant.
Tie Zhong   +4 more
doaj   +4 more sources

A Multi-Mode Recognition Method for Broadband Oscillation Based on Compressed Sensing and EEMD [PDF]

open access: goldApplied Sciences
In power systems, the application of wind power generation equipment and power electronic devices leads to an increased frequency of broadband oscillation events, and the detection of oscillation information becomes extremely difficult, due to the ...
Jinggeng Gao   +5 more
doaj   +4 more sources

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

open access: goldEnergies
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   +4 more sources

Discriminating legitimate oscillations from broadband transients [PDF]

open access: goldBMC Neuroscience, 2013
Neural oscillations are one of the most prominent characteristics of brain activity. Unfortunately, quantification of oscillations is not always straightforward. For spiking activity the pulsed nature of the binary signal makes spectral methods difficult to apply [1].
Vasile V. Moca, Raul C. Mureșan
openalex   +2 more sources

Long-metallic-strip array with parasitic rings: an efficient metasurface for dual-broadband electromagnetic window at large angles [PDF]

open access: yesNanophotonics
The long-metallic-strip (LMS) array proposed by J. B. Pendry has been widely studied in electromagnetic windows. However, it could only work for the single-band window, not the dual-band one, due to the plasma-like oscillation attenuating with increasing
Li Tiefu   +9 more
doaj   +2 more sources

The Effect of Chronic Cannabinoids on Broadband EEG Neural Oscillations in Humans [PDF]

open access: bronzeNeuropsychopharmacology, 2012
Animal and cellular work has shown that central cannabinoid-1 receptors modulate neural oscillations in the gamma range (40 Hz), which may be important for normal perceptual and cognitive processes. In order to assess the effect of cannabinoids on broadband-frequency neural oscillations in humans, the current study examined the effect of chronic ...
Patrick D. Skosnik   +6 more
openalex   +4 more sources

QUASI-PERIODIC OSCILLATIONS AND BROADBAND VARIABILITY IN SHORT MAGNETAR BURSTS [PDF]

open access: bronzeThe Astrophysical Journal, 2013
28 pages, 17 figures, ApJ in ...
Daniela Huppenkothen   +9 more
openalex   +6 more sources

Detecting nonlinear oscillations in broadband signals

open access: greenChaos: An Interdisciplinary Journal of Nonlinear Science, 2009
A framework for detecting nonlinear oscillatory activity in broadband time series is presented. First, a narrow-band oscillatory mode is extracted from a broadband background. Second, it is tested whether the extracted mode is significantly different from linearly filtered noise, modeled as a linear stochastic process possibly passed through a static ...
Martin Vejmelka, Milan Paluš
openalex   +4 more sources

Research on broadband oscillation characteristics and additional damping control of new energy grid-connected systems

open access: goldFrontiers in Energy Research
The large-scale grid connection of new energy sources makes the power system highly electronic. The resulting broadband oscillation problem is the main challenge hindering the safe and stable operation of current high-proportion new energy power systems.
Qian Feng   +6 more
doaj   +2 more sources

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