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Frontiers in Energy Research, 2023 With wind power integrated into the power system on a large scale, the system has become vulnerable to the frequency stability issue. The battery energy storage system (BESS) is considered the key solution to improving the system frequency regulation ...
Dongdong Li +5 more
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Optimization Scheduling of Multi-Regional Systems Considering Secondary Frequency Drop
EnergiesAfter primary frequency regulation in large-scale wind farms is completed, the power dip phenomenon occurs during the rotor speed recovery phase. This phenomenon may induce a secondary frequency drop in power systems, which poses challenges to system ...
Xiaodong Yang +4 more
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Control strategy and parameter setting for wind power considering secondary frequency drop
International Journal of Electrical Power & Energy SystemsThe variability of wind power impacts its frequency support capability. To enhance the stability and reliability of frequency support from doubly fed induction generator-based wind farms (DFIG-based WFs) during the primary frequency regulation process ...
Chao Zhang, Yunfeng Wen, Jingxian Li
doaj +2 more sources
EnergiesWith the increasing integration of wind energy into power systems, maintaining frequency stability has become a significant challenge. To address the issue of secondary frequency drop caused by wind turbines exiting the primary frequency regulation of ...
Ketian Liu +3 more
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A rotational speed recovery strategy for wind turbines considering secondary frequency drops
Zhejiang dianliWind turbines can contribute to frequency regulation by releasing rotor kinetic energy， which is an effective way to ensure frequency stability in power systems with high wind power penetration.
LYU Zhenhua +4 more
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Zhongguo dianli, 2023 The doubly-fed induction generator (DFIG) can participate in the system frequency modulation by releasing the kinetic energy stored in the rotor, but it may cause a secondary frequency drop when the speed is recovered, which is adverse to the frequency ...
Jingjing ZHAO +4 more
doaj +1 more source
Cooperative Synthetic Inertia Control for Wind Farms Considering Frequency Regulation Capability
Frontiers in Energy Research, 2021 To fully utilize the frequency regulation (FR) capability of wind turbines (WTs) and to avoid a secondary frequency drop caused by the rotor speed recovery, this paper firstly proposes an FR capability evaluation method for wind farms based on the ...
Qiaoming Shi +6 more
doaj +1 more source
Frontiers in Energy Research, 2022 Large-scale wind power connected to the grid efficiently reduces fossil fuel consumption, but extremely decreases grid inertial and increases frequency regulation pressure on the grid.
Chao Liu +4 more
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Adaptive droop control strategy for wind turbines based on ROCOF and rotor kinetic energy
电力工程技术, 2023 The frequency stability of the wind power grid-connected system may be improved by the participation of wind turbines in frequency regulation. However, it is difficult for the existing droop control to coordinate the frequency response characteristics ...
LIU Hui, LUO Wei, SU Yi, ZHAO Teyang
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NbTi foil thermally controlled switches for superconducting converters with operation frequency up to 50 Hz. Part 1: Experiment [PDF]
, 1992 The increase of the operation frequency of superconducting converters up to 50 Hz opens new ways to improve their parameters. Thermally controlled switches using NbTi foil are able to operate at industrial frequency with reasonable efficiency and dynamic
Kate, H.H.J. ten +3 more
core +5 more sources