Results 11 to 20 of about 2,477 (219)

Directional Overcurrent Relays Coordination Problems in Distributed Generation Systems [PDF]

open access: yesEnergies, 2017
This paper proposes a new approach to the distributed generation system protection coordination based on directional overcurrent protections with inverse-time characteristics.
Jakub Ehrenberger, Jan Švec
doaj   +2 more sources

Optimal overcurrent relay coordination for interconnected power systems: A proper approach and improved technique

open access: yese-Prime: Advances in Electrical Engineering, Electronics and Energy, 2023
The optimum setting of directional overcurrent relays (DOCRs) is required to avoid miscoordination and avail fast response. To fulfill these requirements, it is required to prefer optimization techniques and modifications in objective functions (OF ...
Shanker D. Godwal   +4 more
doaj   +1 more source

Optimal Adjustment of Dualsetting Overcurrent Relays in Inverter-Based Microgrids [PDF]

open access: yesIranian Journal of Electrical and Electronic Engineering, 2023
Increasing the penetration of distributed generation (DG) systems in power systems has many advantages, but it also has problems, including interference with the proper functioning of the protection systems.
Seyed Masoud Barakati, Farzad Tahmasebi
doaj  

An Adaptive Overcurrent Coordination Scheme to Improve Relay Sensitivity and Overcome Drawbacks due to Distributed Generation in Smart Grids [PDF]

open access: yes, 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
core   +1 more source

Summary of useful concepts about the coordination of directional overcurrent protections

open access: yesCSEE Journal of Power and Energy Systems, 2019
This paper summarizes some useful concepts about the coordination of directional overcurrent protections. The following key topics are described: the analysis of systems in a ring configuration and only one source of short-circuit currents; the ...
Elmer Sorrentino, Naren Gupta
doaj   +1 more source

Harmonic Dual-Setting Directional Overcurrent Protection for Inverter-Based Islanded Microgrids

open access: yesIEEE Access, 2023
Limited fault currents in inverter-interfaced islanded microgrids impose immense challenges on conventional overcurrent protection schemes. This paper proposes a sensitive and selective protection scheme for islanded microgrids using a third harmonic ...
Talal Elemamali Sati   +2 more
doaj   +1 more source

Distance Protection for Microgrids in Distribution System [PDF]

open access: yes, 2015
Owing to the increasing penetration of distributed generation, there are some challenges for the conventional protection in distribution system. Bidirectional power flow and variable fault current because of the various operation modes may lead to the ...
Guerrero, Josep M.   +3 more
core   +2 more sources

Improving Directional Overcurrent Relay Coordination in Distribution Networks for Optimal Operation Using Hybrid Genetic Algorithm with Sequential Quadratic Programming

open access: yesEnergies, 2023
In recent years, with the growing popularity of smart microgrids in distribution networks, the effective coordination of directional overcurrent relays (DOCRs) has presented a significant challenge for power system operators due to the intricate and ...
Faraj Al-Bhadely, Aslan İnan
doaj   +1 more source

Impact of marine power system architectures on IFEP vessel availability and survivability [PDF]

open access: yes, 2007
In recent years integrated full electric propulsion (IFEP) has become a popular power system concept within the marine community, both for the naval and the commercial community.
Booth, C.D.   +3 more
core   +1 more source

Optimal Coordination of Protection Devices in Distribution Networks With Distributed Energy Resources and Microgrids

open access: yesIEEE Access, 2022
Microgrids are promising to enhance power distribution systems’ efficiency, quality, sustainability, and reliability. However, microgrids operation can impose several challenges to traditional protection schemes, like changes in the power flow ...
Cleberton Reiz, Jonatas Boas Leite
doaj   +1 more source

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