Results 31 to 40 of about 1,204,933 (307)
IEEE Access, 2020 One of the main reasons that affecting the stability of power systems is low frequency oscillation (LFO). The existence of noise influences the accuracy of LFO mode identification extracted from wide-area measurement system (WAMS).
Jian Chen, Xin Li, M. A. Mohamed, T. Jin
semanticscholar +1 more source
Householder-based Prony Method for Identification of Low-frequency Oscillation in Power System [PDF]
E3S 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
Analysis of Mode Interaction in Ultra-low Frequency Oscillation Based on Trajectory Eigenvalue
Journal of Modern Power Systems and Clean Energy, 2020 Complex phenomena such as prolongedly undamped ultra-low frequency oscillation (ULFO) and eigenmode re-excitation are observed in the simulations of hydroelectric power systems.
Yusheng Xue, Zijun Bin
semanticscholar +1 more source
Energies, 2020 In recent years, ultralow-frequency oscillation has repeatedly occurred in asynchronously connected regional power systems and brought serious threats to the operation of power grids.
Sijia Wang +3 more
semanticscholar +1 more source
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
doaj +1 more source
Identification of low frequency oscillation modes in large transmission systems
Revista 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
IEEE Access, 2020 With increasing complexity of the power system, and the gradually expanding scales, the probability of low-frequency oscillation (LFO) is increasing, and its performance is more diverse.
Yan Zhao, Jinsong Zhang, Qi Zhao
doaj +1 more source
Nonergodic Brownian oscillator: low-frequency response
Journal of Statistical Mechanics: Theory and Experiment, 2023 Abstract An undisturbed Brownian oscillator may not reach thermal equilibrium with the thermal bath due to the formation of a localized normal mode. The latter may emerge when the spectrum of the thermal bath has a finite upper bound ω 0 and the oscillator natural frequency exceeds a critical value
openaire +2 more sources
Low frequency longitudinal relaxation oscillation [PDF]
PACS2001. Proceedings of the 2001 Particle Accelerator Conference (Cat. No.01CH37268), 2002 From the recent data analysis of the longitudinal feedback system and the streak camera, we have found a longitudinal relaxation beam oscillation whose frequency is a multiple of 36 Hz. When the relaxation oscillation is generated, horizontally oscillating wide beams are observed at the diagnostic beamline, and the beam lifetime is fluctuated.
null Yujong Kim +11 more
openaire +1 more source
Research on Damping Control Index of Ultra-Low-Frequency Oscillation in Hydro-Dominant Power Systems
, 2020 In recent years, ultra-low-frequency oscillation (ULFO) is a prominent problem in power systems of dominant hydropower. In order to suppress ULFO, the most effective strategy is the governor parameters optimization to improve the system damping within ...
Gang Chen +6 more
semanticscholar +1 more source