Results 11 to 20 of about 75,003 (271)
IEEE Access, 2022 Nowadays, the Overcurrent (OC) and Earth Fault (EF) relays coordination problem is one of the most complex and challenging concerns of power protection and network operators due to the high and volatile generation capacity of renewable energy sources in ...
Feras Alasali +6 more
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An Approach for Optimal Coordination of Over-Current Relays in Microgrids with Distributed Generation [PDF]
Electronics, 2020 The ever increasing presence of renewable distributed generation (DG) in microgrids is imposing new challenges in protection coordination. The high penetration of renewable DG enables microgrids to operate under different topologies, giving rise to bidirectional power flows and in consequence, rendering traditional coordination approaches inappropriate
Sergio D. Saldarriaga-Zuluaga +2 more
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Energies, 2021 The relay coordination problem is of dire importance as it is critical to isolate the faulty portion in a timely way and thus ensure electrical network security and reliability.
Muhammad Irfan +6 more
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IEEE Access, 2022 The incorporation of renewable energy microgrids brings along several new protection coordination challenges due to the new and stochastic behaviour of power flow and fault currents distribution.
Feras Alasali +3 more
doaj +1 more source
Coordination of Over Current Relays in Distributed Generation
International Journal of Recent Technology and Engineering (IJRTE), 2019 The modern power system increases the power by adding Distributed Generation (DG). When distributed energy sources are added to the network, they effect the conventional fault levels and fault current paths and have been proved that the accurate operation of the overcurrent protection is not possible.
Mr. T. Kosaleswara Reddy +3 more
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Microgrid Protection Coordination Considering Clustering and Metaheuristic Optimization
Energies, 2023 This paper addresses the protection coordination problem of microgrids combining unsupervised learning techniques, metaheuristic optimization and non-standard characteristics of directional over-current relays (DOCRs).
Javier E. Santos-Ramos +4 more
doaj +1 more source
An Adaptive Overcurrent Coordination Scheme to Improve Relay Sensitivity and Overcome Drawbacks due to Distributed Generation in Smart Grids [PDF]
, 2017 Distributed Generation (DG) brought new challenges for protection engineers since standard relay settings of traditional system may no longer function properly under increasing presence of DG.
Conde, Arturo +3 more
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Differential Evolution-Based Overcurrent Protection for DC Microgrids
Energies, 2021 DC microgrids have advantages over AC microgrids in terms of system efficiency, cost, and system size. However, a well-designed overcurrent protection approach for DC microgrids remains a challenge.
Miao Li +4 more
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Evaluation of the Impact of Island Mode for Renewable Energy Systems on the Adaptation Protection under Fault Conditions [PDF]
Port Said Engineering Research Journal, 2020 This paper presents the effect of atmospheric turbulence, which is the main factor affecting energy production in renewable sources such as photovoltaic (PV) and wind energy systems. The power generated by PV and wind systems could be affected by partial
Ibrahim Elmohamady +2 more
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A survey of self organisation in future cellular networks [PDF]
, 2013 This article surveys the literature over the period of the last decade on the emerging field of self organisation as applied to wireless cellular communication networks.
Aliu, Osianoh Glenn +3 more
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