Results 31 to 40 of about 75,653 (214)
Low-frequency oscillations in coupled phase oscillators with inertia
Scientific Reports, 2019 AbstractThis work considers a second-order Kuramoto oscillator network periodically driven at one node to model low-frequency forced oscillations in power grids. The phase fluctuation magnitude at each node and the disturbance propagation in the network are numerically analyzed.
Song, Huihui +3 more
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Improvement of the low frequency oscillation model for Hall thrusters
AIP Advances, 2016 The low frequency oscillation of the discharge current in Hall thrusters is a major aspect of these devices that requires further study. While the existing model captures the ionization mechanism of the low frequency oscillation, it unfortunately fails ...
Chunsheng Wang, Huashan Wang
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Zhongguo dianli, 2020 Due to the randomness of its occurrence in power system, currently there is no effective way to suppress the low frequency oscillations through the existing thermal control modes of generation units.
Bao ZHANG +4 more
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Frequency Oscillation Analysis of Power System With Multiple Governor Deadbands
IEEE Access, 2020 In recent years, the ultra-low frequency oscillation of power system is one of the most concerned frequency stability problem. The governor deadband are considered as one of the main influences.
Chengwei Fan +5 more
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Application and Evolution for Neural Network and Signal Processing in Large-Scale Systems
Complexity, 2021 Low frequency oscillation is an important attribute of human brain activity, and the amplitude of low frequency fluctuation (ALFF) is an effective method to reflect the characteristics of low frequency oscillation, which has been widely used in the ...
Dongbao Jia +7 more
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Low-frequency oscillation analysis of two-stage photovoltaic grid-connected system
Energy Reports, 2022 The low-frequency oscillation (LFO) problem of photovoltaic (PV) grid-connected systems has been a critical concern for safe operation, whereas the impact of dc-side components of PV plants are always ignored and single-stage PV plant is used. This paper
Bingbing Shao +4 more
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Performance analysis of modeling scale on multiband oscillations in grid-connected wind farm
Frontiers in Energy Research, 2023 Grid-connected permanent magnet synchronous generator (PMSG) wind farms may be susceptible to oscillation when connected to weak grids. This paper explores the root causes of the oscillations from two perspectives: the model and the oscillation frequency
Lin Zhu +5 more
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HIGH AND LOW FREQUENCY OSCILLATIONS IN DRUG EPIDEMICS [PDF]
International Journal of Bifurcation and Chaos, 2006 We extend the two-dimensional model of drug use introduced in [Behrens et al., 1999, 2000, 2002] by considering two additional states that represent in more detail newly initiated ("light") users' response to the drug experience. Those who dislike the drug quickly "quit" and briefly suppress initiation by others.
J. P. Caulkins +3 more
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CES Transactions on Electrical Machines and Systems, 2018 The low frequency oscillation is a serious threat to security and stability of a power grid. How to locate the disturbance source accurately is an important issue to low frequency oscillation disposal.
Xiangxin Li, Ming Zhou, Yazhou Luo
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Applied Sciences, 2023 Aiming at the problem of ultra-low-frequency oscillation (ULFO) in power systems, with an oscillation frequency lower than 0.1 Hz, an oscillation suppression control method is proposed. Firstly, the mathematical modeling of the system is carried out, and
Xueyang Zeng +4 more
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