Results 1 to 10 of about 1,041,598 (189)

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

e-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, Kartik S. Pandya, Santosh C. Vora, Chintan R. Mehta, Vipul R. Rajput   +4 more
doaj   +2 more sources

Optimal coordination of directional overcurrent relay based on combination of Firefly Algorithm and Linear Programming

Ain Shams Engineering Journal, 2022
Optimal coordination and settings of directional overcurrent relays (DOCRs) are crucial task to ensure reliable and effective protection in power system networks. The settings of DOCRs are plug setting current (PSC) and time multiplier setting (TMS). The
Suzana Pil Ramli, Hazlie Mokhlis, Wei Ru Wong, Munir Azam Muhammad, Nurulafiqah Nadzirah Mansor   +4 more
doaj   +4 more sources

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

Energies, 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   +2 more sources

Performance evaluation of advanced metaheuristic algorithms for directional overcurrent relay coordination in distribution networks [PDF]

Scientific Reports
Directional Overcurrent Relay (DOCR) coordination has become an increasingly important problem in modern distribution networks, where growing system complexity and high fault-current variability demand fast and highly selective protection strategies ...
İbrahim Arslanoğlu, İsmail Hakkı Altaş, Heybet Kılıç   +2 more
doaj   +2 more sources

OptiCoord: Advancing directional overcurrent and distance relay coordination with an enhanced equilibrium optimizer [PDF]

Heliyon
In this article, an improved optimization technique is used to get a solution to the problem of coordination between directional overcurrent relays (DOCR) and distance relays. An enhanced version of an equilibrium optimization algorithm (EO), referred to
Ahmed Korashy, Salah Kamel, Francisco Jurado, Wulfran Fendzi Mbasso   +3 more
doaj   +2 more sources

Optimal Relay Coordination in Renewable Microgrids Using Multiobjective Optimization

International Transactions on Electrical Energy Systems
The penetration of distributed generation (DG) into distribution networks has transformed traditional protection philosophies, often resulting in protection miscoordination due to bidirectional fault currents and varying system topologies.
Shahimol Basheer, K. C. Sindhu Thampatty
doaj   +2 more sources

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

Journal 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

PESA II Algorithm-Based Optimal Coordination of Directional Overcurrent Relays in microgrid [PDF]

هوش محاسباتی در مهندسی برق, 2022
This paper deals with the optimal set of directional overcurrent relays using intelligent methods when the problem has multi-objective functions with different constraints.
Parviz Omidi Brojeni, Saeed Abazari, mohammad madani   +2 more
doaj   +1 more source

Coordination of non‐directional overcurrent relays and fuses in active distribution networks considering reverse short‐circuit currents of DGs

IET Generation, Transmission & Distribution, 2021
Abstract The main protection equipment in radial distribution networks are non‐directional overcurrent relays (NDOCR) and fuses which are coordinated using the conventional protection coordination method.
Mahdi Ghotbi‐Maleki, Reza Mohammadi Chabanloo, Mohammad Reza Taheri, Hatem H. Zeineldin   +3 more
doaj   +1 more source

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

IEEE 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, Hebatallah Mohamed Sharaf, Mostafa Shaaban, Ehab F. El-Saadany, H. H. Zeineldin   +4 more
doaj   +1 more source