Results 11 to 20 of about 1,100 (215)
Advanced ROCOF protection of distribution systems [PDF]
, 2012 When islanding occurs, power supply from the main grid is interrupted which causes a problem when distributed generators continue to provide power into distributed networks. An islanding situation should be detected accurately soon after the island is formed. Because failure to trip the islanded distributed resource can lead to a number of problems for
Liu, Bohan
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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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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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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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An anti-islanding protection based on RoCoF compliant with ENTSO-E and IEC 62116 [PDF]
, 2022 In case of unintentional islanding, distributed generation units must be able to detect it and disconnect from the grid in less than 2 seconds. In this work, a Rate of Change of Frequency (RoCoF) method has been developed for islanding detection.
Martín-Arroyo, S. +4 more
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IEEE Access, 2022 Bulk integration of Distributed Energy Resources (DERs) into the power grids reduces the system’s inherent inertial response.The reduced inertial response causes a high Rate-of-Change-of-Frequency (RoCoF) and poses formidable operational ...
Sumit Nema +2 more
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IEEE Access, 2021 The utilization of Energy Storage Systems (ESS) for improving the frequency response of a low inertia power system is investigated in this article. Substantial wind power penetration is causing the replacement of conventional synchronous generators in ...
Md. Nahid Haque Shazon +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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Pemilihan Relai Proteksi Anti Islanding untuk Pembangkit Tersebar
Jurnal Nasional Teknik Elektro, 2017 Regulation of grid connected distributed generation (DG) in various countries states that in the event of disconnection of the grid, DG(s) must be disconnected from the distribution networks.
Adrianti Adrianti
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A New Passive Islanding Detection Solution Based on Accumulated Phase Angle Drift
Applied Sciences, 2018 The existing passive methods for islanding detection are mainly based on the detection of voltage and frequency deviation after islanding, using protections such as voltage vector shift (VVS) and rate of change of frequency (ROCOF).
Jinlei Xing, Longhua Mu
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