Results 91 to 100 of about 1,041,598 (189)

A Comprehensive Directional Overcurrent Protection Scheme for LVDC Microgrids Using Harmonic Voltage Injection: Analysis and Case Studies

IEEE Access
Low voltage DC microgrids represent a highly adaptable approach to bringing renewable power generation closer to consumers, however their large, bidirectional fault currents and quick settling times complicate traditional protection methods.
Christopher James Nardone, Talal Elemamali Sati, Maher A. Azzouz   +2 more
doaj   +1 more source

Optimal Coordination of Directional Overcurrent Relay using Water Evaporation Optimization Algorithm [PDF]

, 2019
In modern power system, protection devices play an important role. The protection in the network is provided by combined operation of relays, breakers etc.
Pargai, Shruti
core  

Formulation and Optimization of Directional Overcurrent Relay Coordination Using SESNO Optimization Algorithm

Renewable energy integration into modern distribution networks introduces bidirectional fault currents and variable fault levels that compromise conventional directional overcurrent relay (DOCR) coordination.
Manal Drici, Ahmed salawuddeen, Marizuk Mustafa Oloyede, Abdullahi Abubakar Mas’ud   +3 more
core   +1 more source

Computational intellegence approach for overcurrent relay coordination

, 2017
TK2861.Q35 2017This project develops optimization techniques for overcurrent relay coordination. Since the problem has many values, the mathematical method will not succeed in solving complex mathematical equation.
Qamarul Ariff Azlan
core  

Optimal Microgrid Protection Coordination for Directional Overcurrent Relays Through Mixed-Integer Linear Optimization

Energies
Microgrids (MGs) are revolutionizing modern power systems by enabling decentralized energy production, renewable energy integration, and enhanced grid resilience. However, the increasing complexity of MGs, particularly with the integration of Distributed
León F. Serna-Montoya, Sergio D. Saldarriaga-Zuluaga, Jesús M. López-Lezama, Nicolás Muñoz-Galeano   +3 more
doaj   +1 more source

Optimal Coordination of Distance and Two-Level Directional Overcurrent Relays for Renewable Energy-Integrated Power Networks Using Enhanced Red-Tailed Hawk Algorithm

Applied Sciences
Optimal coordination of distance and directional overcurrent relays (DR–DOCR) aims to achieve a fast, selective, and reliable protection scheme for transmission and sub-transmission systems.
Birsen Boylu Ayvaz, Zafer Dogan
doaj   +1 more source

Optimal coordination of overcurrent relays in distribution systems with distributed generators based on differential evolution algorithm

, 2011
Distributed generators (DGs) are defined as generators that are connected to a distribution network. The direction of the power flow and short-circuit current in a network could be changed compared with one without DGs.
Ledwich, Gerard, Wen, Fushuan, Yang, Hui
core   +1 more source

Optimal directional overcurrent relay settings for stable microgrids with synchronous and inverter-based resources

International Journal of Electrical Power & Energy Systems
Microgrid (MG) is a small-scale system that offers on-site energy production and storage capabilities, allowing for the seamless integration of different technology-driven distributed energy resources (DERs), including inverter-based and synchronous ...
Abdelfattah A. Eladl, Ahmed N. Sheta, M. Elgamal, Juan C. Vasquez, Bishoy E. Sedhom   +4 more
doaj   +1 more source

Optimal Coordination of Overcurrent Directional and Distance Relays in Meshed Networks Using Genetic Algorithm

, 2015
Protection of transmission lines is essential to ensure a correct operation of power systems. In this paper a pilot protection scheme, known as permissive overreaching transfer trip, is used.
Mantovani, Jose Roberto Sanches, Marcolino, Matheus Henrique [UNESP], Leite, Jonatas Boas, Mantovani, Jose Roberto Sanches [UNESP], Leite, Jonatas Boas [UNESP], Marcolino, Matheus Henrique   +5 more
core   +1 more source

Recent Developments of Directional Overcurrent Relay Coordination in Ring Distribution Network Based on Hybrid Optimization Techniques

IEEE Access
As power distribution systems evolve from conventional radial structures to more complex ring networks, driven by the widespread integration of distributed generation (DG), the challenge of ensuring reliable and effective protection becomes increasingly ...
Annas Alamshah, Suzana Pil Ramli, Nurulafiqah Nadzirah Mansor, Muhamad Usama, Hazlie Mokhlis, Hadi Suyono, Rini Nur Hasanah   +6 more
doaj   +1 more source