Results 11 to 20 of about 8,850 (277)
Generalized Damping Torque Analysis of Ultra-Low Frequency Oscillation in the Jerk Space
CoRR, 2023 Ultra low frequency oscillation (ULFO) is significantly threatening the power system stability. Its unstable mechanism is mostly studied via generalized damping torque analysis method (GDTA). However, the analysis still adopts the framework established for low frequency oscillation. Hence, this letter proposes a GDTA approach in the jerk space for ULFO.
Yichen Zhou +3 more
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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
doaj +2 more sources
Modelling and Analysis of Frequency-Responsive Wind Turbine Involved in Power System Ultra-Low Frequency Oscillation [PDF]
IEEE Transactions on Sustainable Energy, 2022 This paper presents a dynamic analysis for ultra-low frequency oscillations (ultra-LFOs) observed in the wind-hydropower hybrid systems. In such systems, DFIG wind turbines (WTs) are required to be frequency-responsive with providing the inertia and frequency support.
Li Sun, Xiaowei Zhao
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Long Term Characteristics of Ultra Low Frequency Oscillations in the Nordic Power System
2022 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe), 2022 Publisher Copyright: © 2022 IEEE.
Seppanen, Janne +3 more
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IET Electric Power Applications, 2023 The ultra‐low frequency oscillation and poor speed regulation performance caused by the fast power control decrease the stability and efficiency of the variable speed pumped storage unit with a full size converter (FSC‐VSPSU).
Huabo Shi +4 more
doaj +2 more sources
FLC-Based Ultra-Low-Frequency Oscillation Suppression Scheme for Interconnected Power Grids
EnergiesThe appearance of ultra-low-frequency oscillations in the grid at the sending end, after asynchronous grid interconnection, poses a significant threat to the stable operation of the system. For post-asynchronous interconnection in a multi-DC transmission
Chao Xing +7 more
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Frequency Dynamic Characteristic Analysis of Ultra-Low Frequency Oscillation and Multi-Machine GPSS Parameter Tuning Method [PDF]
Dianli jianshe[Objective] The growing concern over frequency stability is attributed to the decreasing overall inertia of power systems. To improve the analysis of frequency stability and performance of modern power systems， a frequency dynamic characteristic analysis
ZENG Pijiang, XU Hao, YE Pengju, ZHENG Chao, SAI Xiangyu, CHEN Gang, ZHAO Yong, JIANG Chuyang, GAN Deqiang
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A Dual-Mode Memristor-Based Oscillator for Energy-Efficient Biomedical Wireless Systems [PDF]
MicromachinesThis paper presents a novel dual-mode memristor-based ring oscillator designed for energy-efficient, wireless biomedical signal conditioning systems.
Imen Barraj, Mohamed Masmoudi
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Stark modulated Rydberg dissipative time crystals at room temperature applied to sub-kHz electric field sensing [PDF]
Scientific ReportsOut-of-equilibrium Rydberg gases exhibit emergent many-body phases due to mode competition. Sustained limit cycle oscillations (OSC) emerge when driven by B-fields at room temperature, forming robust Rydberg dissipative time crystals (DTC).
Darmindra Arumugam
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IET Renewable Power GenerationThe ultra‐low frequency oscillation (ULFO) imposes an emerging stability challenge to the high proportion of hydropower grids. To suppress ULFO without reducing the primary frequency regulation of the hydro governor, a novel idea to exploit the voltage ...
Huabo Shi +5 more
doaj +2 more sources