Results 21 to 30 of about 218 (93)

Improved Firefly Algorithm for the Optimal Coordination of Directional Overcurrent Relays

open access: yesIEEE Access, 2019
In an electrical power network linear and non-linear models are used for directional overcurrent relay (DOCR) coordination issue by applying different heuristic techniques.
Tahir Khurshaid   +5 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

Optimisasi Setting Directional Overcurrent Relay Dengan Menggunakan Hybrid Algoritma (DE – PSO) [PDF]

open access: yes, 2022
To prevent interference and damage to equipment in the electric power system, the role of a protection system is needed. An unreliable protection system has the impact of economic losses, this is the basis for engineers to conduct research on the ...
Syamsir, Hendri Novia   +1 more
core   +2 more sources

Comparative study of optimization methods for optimal coordination of directional overcurrent relays with distributed generators [PDF]

open access: yes, 2023
Due to the growing penetration of distributed generators (DGs), that are based on renewable energy, into the distribution network, it is necessary to address the coordination of directional overcurrent relays (DOCR) in the presence of these generators ...
Belfqih, Abdelaziz   +3 more
core   +3 more sources

Optimal coordination of directional overcurrent relays using PSO-TVAC considering series compensation [PDF]

open access: yes, 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.
Mahdad, Belkacem   +2 more
core   +2 more sources

An Adaptive Protection Scheme for Coordination of Distance and Directional Overcurrent Relays in Distribution Systems Based on a Modified School-Based Optimizer [PDF]

open access: yes, 2021
This paper presents an adaptive protection scheme (APS) for solving the coordination problem that deals with coordination directional overcurrent relays (DOCRs) and distance relays second zone time, in relation to coordination with DOCRs.
Abdelhamid, Mohamed   +5 more
core   +1 more source

Recent Developments and Challenges on AC Microgrids Fault Detection and Protection Systems–A Review [PDF]

open access: yes, 2020
The protection of AC microgrids (MGs) is an issue of paramount importance to ensure their reliable and safe operation. Designing reliable protection mechanism, however, is not a trivial task, as many practical issues need to be considered.
Guerrero, Josep M.   +3 more
core   +1 more source

Optimal Coordination of Directional Overcurrent Relays Using Hybrid Firefly–Genetic Algorithm [PDF]

open access: yes, 2023
© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY), https://creativecommons.org/licenses/by/4.0/The application of directional ...
Al-Qawasmi, Khaled   +6 more
core   +2 more sources

An Improved Optimal Solution for the Directional Overcurrent Relays Coordination Using Hybridized Whale Optimization Algorithm in Complex Power Systems

open access: yesIEEE Access, 2019
The directional overcurrent relays (DOCRs) coordination is a useful tool in guaranteeing the safe protection of the power system by the proper coordination of primary and backup protection systems. The optimization model of this problem is non-linear and
Tahir Khurshaid   +5 more
doaj   +1 more source

Nature-Inspired Whale Optimization Algorithm for Optimal Coordination of Directional Overcurrent Relays in Power Systems

open access: yesEnergies, 2019
In power systems protection, the optimal coordination of directional overcurrent relays (DOCRs) is of paramount importance. The coordination of DOCRs in a multi-loop power system is formulated as an optimization problem.
Abdul Wadood   +5 more
doaj   +1 more source

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