Results 1 to 10 of about 207,280 (252)

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

Energies, 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.
René Prenc, Michele Rojnić, Dubravko Franković   +2 more
exaly   +5 more sources

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

IEEE 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, Akshay Kumar Saha   +1 more
exaly   +4 more sources

Distance optimization and directional overcurrent relay coordination using edge-powered biogeography-genetic algorithms

Journal of Cloud Computing: Advances, Systems and Applications
The effective functioning and regulation of power systems crucially rely on the coordination of distance and directional overcurrent relays. Accurate fault detection and successful clearing sequences require support for each relay and the maintenance of ...
Mohammadreza Aminian, Mehdi Jafari Shahbazzadeh, Mahdiyeh Eslami   +2 more
doaj   +3 more sources

The Use of Instantaneous Overcurrent Relay in Determining the Threshold Current and Voltage for Optimal Fault Protection and Control in Transmission Line

Signals, 2023
When a fault occurs on the transmission line, the relay should send the faulty signal to the circuit breaker to trip or isolate the line. Timely detection is integral to fault protection and the management of transmission lines in power systems.
Vincent Nsed Ogar, Sajjad Hussain, Kelum A. A. Gamage   +2 more
doaj   +2 more sources

A Comprehensive Assessment of Fundamental Overcurrent Relay Operation Optimization Function and Its Constraints

Energies, 2022
The optimization of overcurrent relays’ operation is a topic associated with protection coordination of distribution networks. Usually, this refers to medium-voltage networks, since they are protected by numerical relay devices, as opposed to low-voltage
Michele Rojnić, Rene Prenc, Hrvoje Bulat, Dubravko Franković   +3 more
doaj   +2 more sources

Optimal Overcurrent Relay Coordination in Distribution Networks

2021 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, Karacasu, Özgür, Hocaoğlu, Mehmet Hakan   +2 more
openaire   +3 more sources

Time overcurrent adaptive relay

International Journal of Electrical Power and Energy Systems, 2003
In this paper we recommend an inverse time overcurrent adaptive relay. This adaptive relay has a greater sensitivity and reduced operating times using only the information available at the relay's site. We herein describe the functional structure of the overcurrent adaptive relay, its implementation and the results obtained in laboratory tests with ...
Arturo Conde Enrı́quez, Ernesto Vázquez-Martı́nez, Héctor J. Altuve-Ferrer   +2 more
exaly   +2 more sources

Coordination of Overcurrent Relay In Distribution System

ELEKTRIKA- Journal of Electrical Engineering, 2022
The overcurrent phenomena are a dangerous condition that can be occurred in the electrical system and equipment. The condition of the overcurrent will cause the short-circuited current flows through the system and affect the other distribution line. The purpose of this study is to investigate the coordination of the overcurrent relay in different types
Rasyidah Mohamad Idris, Siti Zulaikha Mohamed   +1 more
openaire   +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
Korashy A, Kamel S, Jurado F, Fendzi Mbasso W.   +3 more
europepmc   +2 more sources

Comparative optimization of overcurrent relay coordination in DG-integrated distribution networks: water cycle algorithm versus genetic algorithm and big bang–big crunch [PDF]

Scientific Reports
The increasing penetration of distributed generation (DG) has significantly complicated protection coordination in modern distribution networks by introducing bidirectional power flows and variable fault current levels.
Reda E. Mohamed, Saber M. Saleh, Ahmad G. Ahmad   +2 more
doaj   +2 more sources