Results 1 to 10 of about 6,262 (228)

Optimal Coordination of Directional Overcurrent Relays Using PSO-TVAC Considering Series Compensation [PDF]

open access: yesAdvances in Electrical and Electronic Engineering, 2015
The integration of system compensation such as Series Compensator (SC) into the transmission line makes the coordination of directional overcurrent in a practical power system important and complex.
Nabil Mancer   +2 more
doaj   +4 more sources

Migration Between Two Inverse Time-Overcurrent Curves of Different Standard: Experience at Siguragura Power Station

open access: yesJurnal Nasional Teknik Elektro, 2019
The inevitable replacement of electro-mechanical protection relays with more recently-developed microprocessor-based protection relays poses challenges to engineer, one of which is migration from existing manufacturer’s non-standard inverse time ...
Bagus Brahmantya Gautama
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

Protection Coordination Index Assessment Using Fuzzy Logic Controller

open access: yesEnergies, 2022
This paper proposes the assessment method of the protection coordination index (PCI) for overcurrent protection relay and upstream relay. The protection coordination index is an indicator of how properly the equipment is protected by protective relay ...
Choong-Koo Chang   +1 more
doaj   +1 more source

Optimal Coordination of Directional Overcurrent Relays for Microgrids Using ‎Hybrid Interval Linear Programming - Differential Evolution [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2022
The relay coordination problem of directional overcurrent has  been an  active research issue in distribution networks and power transmission. In general, the problem of relay coordination is the nonlinearity of the optimization problem, which increases ...
P. Omidi, S. Abazari, S.M. Madani
doaj   +1 more source

On the Development of Overcurrent Relay Optimization Problem for Active Distribution Networks

open access: yesEnergies, 2022
The goal of this review paper will be to address complex optimization functions in the area of overcurrent relay optimization, to inspect and valorize their objectives and to critically examine their application in real distribution networks.
Rene Prenc   +3 more
doaj   +1 more source

Effects of Particle Swarm Optimization and Genetic Algorithm Control Parameters on Overcurrent Relay Selectivity and Speed

open access: yesIEEE Access, 2022
Distribution systems continue to grow and becoming more complex with increasing operational challenges such as protection miscoordination. Initially, conventional methods were favoured to solve overcurrent relay coordination problems; however, the ...
Sethembiso Nonjabulo Langazane   +1 more
doaj   +1 more source

Non-Communication Based Time-Current-Voltage Dual Setting Directional Overcurrent Protection for Radial Distribution Systems With DG

open access: yesIEEE Access, 2020
This paper proposes a novel protection scheme equipped with time current voltage dual setting directional overcurrent relays for radial distribution systems with (distributed generation) DG without the need of communication assistance.
Ahmed Abdullah Balyith   +4 more
doaj   +1 more source

Optimal Overcurrent Relay Coordination in Distribution Networks

open access: yes2021 56th International Universities Power Engineering Conference (UPEC), 2021
Over-current relay coordination plays a critical role for effective protection of networks since primary protection is based on over-current detection in distribution systems. Thus, optimal relay coordination must be ensured between relays in faulted condition, providing selectivity and fast operation.
Atsever, Mert Bekir   +2 more
openaire   +2 more sources

Koordinasi Proteksi Relai Arus Lebih pada Sistem Distribusi Radial Menggunakan Jaringan Syaraf Tiruan Perambatan Balik

open access: yesElektrika, 2022
To reduce damage to electrical power equipment, protective equipment is needed that is designed as well as possible, so that the protection relay can isolate faults in parts of the distribution network as fast as possible.
Andy Frediansyah   +2 more
doaj   +1 more source

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