Results 11 to 20 of about 69,873 (301)
IEEE Access, 2021 Power system operators evaluate the frequency security of the system by predicting the frequency nadir, which is assumed to indicate the impact of a sudden loss of a generating resource.
Hsin-Wei Chiu, Le-Ren Chang-Chien
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Two-Phase Short-Term Frequency Response Scheme of a DFIG-Based Wind Farm
Frontiers in Energy Research, 2021 The kinetic energy stored in the doubly-fed induction generators (DFIG)-based wind farm can be utilized to sustain the dynamic system frequency. However, difficulties arise in determining the control gain to effectively improve the frequency nadir and ...
Dejian Yang +3 more
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Analytical Approach for Fast Frequency Response Control of VSC HVDC
IEEE Access, 2021 The importance of the auxiliary control of power electronic devices such as HVDC and FACTs is growing owing to the increase in the generation capacity of renewable energy sources.
Junghun Lee +6 more
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Power Reserve from Photovoltaics for Improving Frequency Response in the Isolated System
Energies, 2023 Appropriate frequency response is an issue of great importance in power system management, especially in an islanded one. An energy-based method for assessing a system’s response, which is needed to prevent under frequency load shedding (UFLS), is ...
Olga Poliak, Doron Shmilovitz
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Optimal frequency control for wind power-integrated power system based on parameter identification
Energy Reports, 2023 Frequency control based on wind power is required by the grid code for maintaining system inertia level as well as frequency stability. However, synchronous generator (SG)-emulated frequency control of wind power will result in a nadir and second dip of ...
Di Zheng +3 more
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Novel insight on temporary frequency support of variable speed wind energy conversion system
Wind Energy, 2021 In the recent decade, temporary frequency support derived from variable speed wind turbine generator has been drawing increasing attention in the electronic‐growing power system.
Huanjing Lao +3 more
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Primary Frequency Stability Support of a DFIG in Association With Pitch Angle Control
Frontiers in Energy Research, 2022 For an electric power grid that has large penetration levels of variable renewable energy including wind generation and photovoltaics, the system frequency stability is jeopardized, which is manifest in lowering frequency nadir and settling frequency ...
Xiuli Si +5 more
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An Enhanced Frequency Response Strategy of a DFIG Based on Over-Speed De-Loaded Curve
Applied Sciences, 2021 The increasing level of wind power penetration is seriously threatening the frequency stability of the power system. In this article, we suggest an enhanced frequency response strategy of a doubly fed induction generator (DFIG) based on over-speed de ...
Yien Xu, Hongmei Wang, Dejian Yang
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Wind Speed Retrieval Algorithm Using Ku-Band Radar Onboard GPM Satellite
Remote Sensing, 2021 The algorithm to retrieve wind speed in a wide swath from the normalized radar cross section (NRCS) was developed for the data of Dual Frequency Precipitation Radar (DPR) operating in scanning mode installed onboard a Global Precipitation Measurement ...
Maria Panfilova, Vladimir Karaev
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An Extreme Learning Machine-Based System Frequency Nadir Constraint Linearization Method [PDF]
, 2021 Large-scale integration of converter-based renewable energy sources (RESs) into the power system will lead to a higher risk of frequency nadir limit violation and even frequency instability after the large power disturbance. Therefore, it is essential to consider the frequency nadir constraint (FNC) in power system scheduling.
Liu, Likai +3 more
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