Results 1 to 10 of about 271 (124)
A Fast-Algorithmic Probabilistic Evaluation on Regional Rate of Change of Frequency (RoCoF) for Operational Planning of High Renewable Penetrated Power Systems [PDF]
Energies, 2020 The high rate of change of frequency (RoCoF) issue incurred by the integration of renewable energy sources (RESs) into a modern power system significantly threatens the grid security, and thus needs to be carefully examined in the operational planning ...
Jiaxin Wen +4 more
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Review of RoCoF Estimation Techniques for Low-Inertia Power Systems
Energies, 2023 As the traditional generation is gradually replaced by inverter-based resources, a lack of rotational inertia is now a common issue of modern power systems, which leads to an increasingly larger rate of change of frequency (RoCoF) following contingencies
Xiaoyu Deng +5 more
doaj +1 more source
An Improved Droop Control Scheme of a Doubly-Fed Induction Generator for Various Disturbances
Energies, 2021 Doubly-fed induction generators (DFIGs) participate in the system frequency regulation using a fixed-coefficient droop control scheme. Nevertheless, the frequency-supporting capability of this control scheme with fixed gain is limited for different ...
Yien Xu +3 more
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XXXI Conference on Electrical and Electronic Engineering, 2023 An Electric Power System (EPS) is a dynamic system that, due to continuous variations in the load, the presence of disturbances, switching operations, and/or the operation of the protection system, is never in a steady state. A deficit in generation causes a drop in the system’s frequency that, if not controlled, could result in the loss of synchronism
Carlos Xavier Lozada +3 more
openaire +2 more sources
Energy Reports, 2023 The rate of change of frequency (ROCOF) has become a key parameter to be monitored under high penetration of renewable energy. Any significant ROCOF should be mitigated immediately to avoid any shutdown of power plants and hence power interruptions to ...
Xie Cherng Miow +4 more
doaj +1 more source
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
doaj +1 more source
IEEE Access, 2022 Grid-connected large-scale power converter-based intermittent renewable energy sources (RES) reduce system inertia, increase frequency fluctuation, and increase the rate of change of frequency (RoCoF).
Jonglak Pahasa +2 more
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New Synthetic Inertia Control for Wind Energy Conversion System
IEEE Access, 2023 Participation of modern variable-speed wind turbine generators in system frequency support has gained much attention from various transmission system operators to increase renewable technology hosting capacity in their power networks.
Sherif Fathallah +3 more
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Proving a Concept of Flexible Under-Frequency Load Shedding with Hardware-in-the-Loop Testing
Energies, 2020 It is widely recognized that in the transition from conventional electrical power systems (EPSs) towards smart grids, electrical voltage frequency will be greatly affected.
Denis Sodin +4 more
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Global Energy Interconnection, 2020 The inertia response and primary frequency regulation capability of synchronous grids are declining owing to the increasing penetration of inverter-based resources.
Lining Su +5 more
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